TY  - JOUR
AU  - Černičková, Ivona
AU  - Noga, Pavol
AU  - Ďuriška, Libor
AU  - Kusý, Martin
AU  - Novaković, Mirjana
AU  - Potočnik, Jelena
AU  - Ziegenrücker, René
AU  - Halanda, Juraj
AU  - Janovec, Jozef
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13092
AB  - The present work deals with the investigation of ion-beam assisted annealing/mixing effects on compositional and structural changes in Al-Cu-Co multilayers. 800 nm thick Al64Cu20Co16 multilayers prepared by magnetron sputtering deposition, consisting of 28 successive single-metal Al-, Cu-, and Co-nanolayers were treated by thermal annealing at 300 °C, 400 °C, or 500 °C as well as ion irradiation by 30 MeV Cu5+ ions at fluences of 1x1013 to 5x1014 with an average flux of 2.38 × 1010 at.cm−2s−1. The samples were characterized with SEM, EDX, XRD, and TEM including HAADF. In contrast to the original multilayer, the treated samples were found to consist of two types of alternating nanolayers. A wider coarse-grained structurally and chemically homogeneous single-phase nanolayer formed by Al2Cu, and a narrow fine-grained two-phase nanolayer, which has a heterogeneous composite structure in which the central Co sublayer (being a residue of the original single-metal Co nanolayer) is surrounded from both sides with Al-Co sublayers, consisting of Al9Co2. This Co sublayer is considered to be a diffusion blocker for Al and Cu as well as hindering the movement of borders between particular nanolayers. The formation of a ternary phase in the investigated samples was not confirmed in any of the samples.
T2  - Applied Surface Science
T1  - Ion-beam induced compositional and structural changes of Al-Cu-Co multilayer stacks
IS  - InPress
SP  - 159962
DO  - 10.1016/j.apsusc.2024.159962
ER  - 

@article{
author = "Černičková, Ivona and Noga, Pavol and Ďuriška, Libor and Kusý, Martin and Novaković, Mirjana and Potočnik, Jelena and Ziegenrücker, René and Halanda, Juraj and Janovec, Jozef",
year = "2024",
abstract = "The present work deals with the investigation of ion-beam assisted annealing/mixing effects on compositional and structural changes in Al-Cu-Co multilayers. 800 nm thick Al64Cu20Co16 multilayers prepared by magnetron sputtering deposition, consisting of 28 successive single-metal Al-, Cu-, and Co-nanolayers were treated by thermal annealing at 300 °C, 400 °C, or 500 °C as well as ion irradiation by 30 MeV Cu5+ ions at fluences of 1x1013 to 5x1014 with an average flux of 2.38 × 1010 at.cm−2s−1. The samples were characterized with SEM, EDX, XRD, and TEM including HAADF. In contrast to the original multilayer, the treated samples were found to consist of two types of alternating nanolayers. A wider coarse-grained structurally and chemically homogeneous single-phase nanolayer formed by Al2Cu, and a narrow fine-grained two-phase nanolayer, which has a heterogeneous composite structure in which the central Co sublayer (being a residue of the original single-metal Co nanolayer) is surrounded from both sides with Al-Co sublayers, consisting of Al9Co2. This Co sublayer is considered to be a diffusion blocker for Al and Cu as well as hindering the movement of borders between particular nanolayers. The formation of a ternary phase in the investigated samples was not confirmed in any of the samples.",
journal = "Applied Surface Science",
title = "Ion-beam induced compositional and structural changes of Al-Cu-Co multilayer stacks",
number = "InPress",
pages = "159962",
doi = "10.1016/j.apsusc.2024.159962"
}

Černičková, I., Noga, P., Ďuriška, L., Kusý, M., Novaković, M., Potočnik, J., Ziegenrücker, R., Halanda, J.,& Janovec, J.. (2024). Ion-beam induced compositional and structural changes of Al-Cu-Co multilayer stacks. in Applied Surface Science(InPress), 159962.
https://doi.org/10.1016/j.apsusc.2024.159962

Černičková I, Noga P, Ďuriška L, Kusý M, Novaković M, Potočnik J, Ziegenrücker R, Halanda J, Janovec J. Ion-beam induced compositional and structural changes of Al-Cu-Co multilayer stacks. in Applied Surface Science. 2024;(InPress):159962.
doi:10.1016/j.apsusc.2024.159962 .

Černičková, Ivona, Noga, Pavol, Ďuriška, Libor, Kusý, Martin, Novaković, Mirjana, Potočnik, Jelena, Ziegenrücker, René, Halanda, Juraj, Janovec, Jozef, "Ion-beam induced compositional and structural changes of Al-Cu-Co multilayer stacks" in Applied Surface Science, no. InPress (2024):159962,
https://doi.org/10.1016/j.apsusc.2024.159962 . .

TY  - JOUR
AU  - Laban, Bojana B.
AU  - Novaković, Mirjana
AU  - Vasić-Anićijević, Dragana
AU  - Bondžić, Aleksandra M.
AU  - Vujačić Nikezić, Ana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12442
AB  - Indocyanine green (ICG) is the FDA-approved fluorescent dye used for in vivo medical imaging, diagnostics, and photothermal therapy. However, this dye is easily degradable in the human vascular system, and therefore its stabilization is preferable. In this work, ICG molecules were stabilized by their adsorption on the surface of the L-methionine-capped Ag and Au nanoparticles (Ag and Au @LM NPs) in aqueous colloidal dispersions. The result is the formation of hybrid metal core/ICG shell NPs in colloidal dispersions. Additionally, colloidal dispersions were stabilized, indicating a double effect of ICG adsorption. The obtained hybrid NPs were studied experimentally (UV–Vis spectrophotometry, HRTEM, DLS, FTIR) and theoretically (DFT calculations). HRTEM revealed that the interplanar spacing between adjacent planes of NPs decreases after the dye adsorption. The results obtained from the DFT study confirmed the formation of a covalent bond between the oxygen from ICG dye SO3− group and metal NPs. Considering the characteristics of both components of the NPs/ICG hybrid system, the authors assume that this hybrid system can exhibit the synergistic effect that could lead to more successful theranostic treatment of cancer in nanomedicine.
T2  - Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
T1  - A combined experimental and DFT study of metal core/indocyanine green shell hybrid nanoparticles
VL  - 309
SP  - 123828
DO  - 10.1016/j.saa.2023.123828
ER  - 

@article{
author = "Laban, Bojana B. and Novaković, Mirjana and Vasić-Anićijević, Dragana and Bondžić, Aleksandra M. and Vujačić Nikezić, Ana",
year = "2024",
abstract = "Indocyanine green (ICG) is the FDA-approved fluorescent dye used for in vivo medical imaging, diagnostics, and photothermal therapy. However, this dye is easily degradable in the human vascular system, and therefore its stabilization is preferable. In this work, ICG molecules were stabilized by their adsorption on the surface of the L-methionine-capped Ag and Au nanoparticles (Ag and Au @LM NPs) in aqueous colloidal dispersions. The result is the formation of hybrid metal core/ICG shell NPs in colloidal dispersions. Additionally, colloidal dispersions were stabilized, indicating a double effect of ICG adsorption. The obtained hybrid NPs were studied experimentally (UV–Vis spectrophotometry, HRTEM, DLS, FTIR) and theoretically (DFT calculations). HRTEM revealed that the interplanar spacing between adjacent planes of NPs decreases after the dye adsorption. The results obtained from the DFT study confirmed the formation of a covalent bond between the oxygen from ICG dye SO3− group and metal NPs. Considering the characteristics of both components of the NPs/ICG hybrid system, the authors assume that this hybrid system can exhibit the synergistic effect that could lead to more successful theranostic treatment of cancer in nanomedicine.",
journal = "Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy",
title = "A combined experimental and DFT study of metal core/indocyanine green shell hybrid nanoparticles",
volume = "309",
pages = "123828",
doi = "10.1016/j.saa.2023.123828"
}

Laban, B. B., Novaković, M., Vasić-Anićijević, D., Bondžić, A. M.,& Vujačić Nikezić, A.. (2024). A combined experimental and DFT study of metal core/indocyanine green shell hybrid nanoparticles. in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 309, 123828.
https://doi.org/10.1016/j.saa.2023.123828

Laban BB, Novaković M, Vasić-Anićijević D, Bondžić AM, Vujačić Nikezić A. A combined experimental and DFT study of metal core/indocyanine green shell hybrid nanoparticles. in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 2024;309:123828.
doi:10.1016/j.saa.2023.123828 .

Laban, Bojana B., Novaković, Mirjana, Vasić-Anićijević, Dragana, Bondžić, Aleksandra M., Vujačić Nikezić, Ana, "A combined experimental and DFT study of metal core/indocyanine green shell hybrid nanoparticles" in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 309 (2024):123828,
https://doi.org/10.1016/j.saa.2023.123828 . .

TY  - JOUR
AU  - Popović, Maja
AU  - Novaković, Mirjana
AU  - Pjević, Dejan
AU  - Vana, Dušan
AU  - Jugović, Dragana
AU  - Tošić, Dragana
AU  - Noga, Pavol
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12279
AB  - In the present paper, the effects of metal ion implantation on the structural and optical properties of TiN thin films have been investigated. TiN films of 170 nm thickness were grown by d.c. reactive sputtering on Si (100) wafers and then irradiated at 5 × 1016 ions/cm2 with either Au, Ag, or Cu ions by using two different energies per each implanted metal. The results showed that as deposited TiN crystallizes in the form of a fcc cubic structure, with the crystallites preferentially oriented along the (111) plane. For all implanted layers, the cubic structure was preserved, but compared to as deposited TiN the crystallites were smaller and the lattice was contracted. These changes were correlated with the depth distribution of Au, Ag and Cu ions and assigned to implantation-induced damage that was larger when higher ion energies were used. High-resolution XPS spectra of the surface of as deposited sample showed the coexistence of TiN, TiO2 and TiOxNy phases and this was related to the surface oxidation of the films due to the exposure to air. After implantation, the results were almost similar for all metals, showing an increase in TiO2 contribution and the formation of pure metallic Au and Ag phases, while copper is in the Cu2+ state, which is attributed to Cu(II)-oxide and Cu(OH)2. The microstructural characteristics including defect formation, changes in crystallite size and lattice contraction, and also growth of different metallic phases during implantations were correlated with the findings of the optical characterization of the implanted films. For the as deposited film we found an energy gap of 2.91 eV, which was lower than the value typical for TiN. After implantation the gap was shifted to higher energies, while at the visible part of the region, the existence of additional energy levels, at photon energies below 2.9 eV was observed. Besides, all implanted films showed degraded photocatalytic activity compared to as deposited TiN, among which Cu-implanted samples exhibited the best photocatalytic performances. The lower photocatalytic activity of Au and Ag implanted films compared to Cu implantations was ascribed to larger structural defects and the formation of less favorable electronic states.
T2  - Journal of Alloys and Compounds
T1  - Investigating on the microstructure and optical properties of Au, Ag and Cu implanted TiN thin films: The effects of surface oxidation and ion-induced defects
VL  - 976
SP  - 173046
DO  - 10.1016/j.jallcom.2023.173046
ER  - 

@article{
author = "Popović, Maja and Novaković, Mirjana and Pjević, Dejan and Vana, Dušan and Jugović, Dragana and Tošić, Dragana and Noga, Pavol",
year = "2024",
abstract = "In the present paper, the effects of metal ion implantation on the structural and optical properties of TiN thin films have been investigated. TiN films of 170 nm thickness were grown by d.c. reactive sputtering on Si (100) wafers and then irradiated at 5 × 1016 ions/cm2 with either Au, Ag, or Cu ions by using two different energies per each implanted metal. The results showed that as deposited TiN crystallizes in the form of a fcc cubic structure, with the crystallites preferentially oriented along the (111) plane. For all implanted layers, the cubic structure was preserved, but compared to as deposited TiN the crystallites were smaller and the lattice was contracted. These changes were correlated with the depth distribution of Au, Ag and Cu ions and assigned to implantation-induced damage that was larger when higher ion energies were used. High-resolution XPS spectra of the surface of as deposited sample showed the coexistence of TiN, TiO2 and TiOxNy phases and this was related to the surface oxidation of the films due to the exposure to air. After implantation, the results were almost similar for all metals, showing an increase in TiO2 contribution and the formation of pure metallic Au and Ag phases, while copper is in the Cu2+ state, which is attributed to Cu(II)-oxide and Cu(OH)2. The microstructural characteristics including defect formation, changes in crystallite size and lattice contraction, and also growth of different metallic phases during implantations were correlated with the findings of the optical characterization of the implanted films. For the as deposited film we found an energy gap of 2.91 eV, which was lower than the value typical for TiN. After implantation the gap was shifted to higher energies, while at the visible part of the region, the existence of additional energy levels, at photon energies below 2.9 eV was observed. Besides, all implanted films showed degraded photocatalytic activity compared to as deposited TiN, among which Cu-implanted samples exhibited the best photocatalytic performances. The lower photocatalytic activity of Au and Ag implanted films compared to Cu implantations was ascribed to larger structural defects and the formation of less favorable electronic states.",
journal = "Journal of Alloys and Compounds",
title = "Investigating on the microstructure and optical properties of Au, Ag and Cu implanted TiN thin films: The effects of surface oxidation and ion-induced defects",
volume = "976",
pages = "173046",
doi = "10.1016/j.jallcom.2023.173046"
}

Popović, M., Novaković, M., Pjević, D., Vana, D., Jugović, D., Tošić, D.,& Noga, P.. (2024). Investigating on the microstructure and optical properties of Au, Ag and Cu implanted TiN thin films: The effects of surface oxidation and ion-induced defects. in Journal of Alloys and Compounds, 976, 173046.
https://doi.org/10.1016/j.jallcom.2023.173046

Popović M, Novaković M, Pjević D, Vana D, Jugović D, Tošić D, Noga P. Investigating on the microstructure and optical properties of Au, Ag and Cu implanted TiN thin films: The effects of surface oxidation and ion-induced defects. in Journal of Alloys and Compounds. 2024;976:173046.
doi:10.1016/j.jallcom.2023.173046 .

Popović, Maja, Novaković, Mirjana, Pjević, Dejan, Vana, Dušan, Jugović, Dragana, Tošić, Dragana, Noga, Pavol, "Investigating on the microstructure and optical properties of Au, Ag and Cu implanted TiN thin films: The effects of surface oxidation and ion-induced defects" in Journal of Alloys and Compounds, 976 (2024):173046,
https://doi.org/10.1016/j.jallcom.2023.173046 . .

TY  - JOUR
AU  - Vyskoč, Maroš
AU  - Novaković, Mirjana
AU  - Potočnik, Jelena
AU  - Kovačocy, Pavel
AU  - Jurči, Peter
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12569
AB  - The AZ31B magnesium alloy was laser-welded at three different (1.2, 1.6, and 2 kW) laser output powers in the present work. All the butt weld joints are almost defect-free. The size of the weld joint slightly increases with increasing laser output power. The weld metal is formed by columnar grains of the alpha phase at the weld metal/base metal interface, but a finely equiaxed grain microstructure is formed in the centres of fusion zones. The minor phases are Mg17Al12 and (Al,Mg)8Mn5. The weld metal microstructure manifests clear refinement with a decrease in laser output power. Microstructural changes are reflected in changes in mechanical properties; weld joints prepared at the lowest laser output power manifest the highest microhardness, ultimate tensile strength, yield strength, and almost 90% joint efficiency. This is related to the different extents of strengthening mechanisms that act most effectively in weld joints made at 1.2 kW laser output power. Detail analysis of fracture surfaces confirmed that lower laser output power and general microstructural refinement favours the formation of plastically deformed material, which is in excellent agreement with both the experimentally determined and the calculated values of yield strength.
T2  - Materials Characterization
T1  - Microstructure – Properties relationship in laser-welded AZ31B magnesium alloy
VL  - 208
SP  - 113664
DO  - 10.1016/j.matchar.2024.113664
ER  - 

@article{
author = "Vyskoč, Maroš and Novaković, Mirjana and Potočnik, Jelena and Kovačocy, Pavel and Jurči, Peter",
year = "2024",
abstract = "The AZ31B magnesium alloy was laser-welded at three different (1.2, 1.6, and 2 kW) laser output powers in the present work. All the butt weld joints are almost defect-free. The size of the weld joint slightly increases with increasing laser output power. The weld metal is formed by columnar grains of the alpha phase at the weld metal/base metal interface, but a finely equiaxed grain microstructure is formed in the centres of fusion zones. The minor phases are Mg17Al12 and (Al,Mg)8Mn5. The weld metal microstructure manifests clear refinement with a decrease in laser output power. Microstructural changes are reflected in changes in mechanical properties; weld joints prepared at the lowest laser output power manifest the highest microhardness, ultimate tensile strength, yield strength, and almost 90% joint efficiency. This is related to the different extents of strengthening mechanisms that act most effectively in weld joints made at 1.2 kW laser output power. Detail analysis of fracture surfaces confirmed that lower laser output power and general microstructural refinement favours the formation of plastically deformed material, which is in excellent agreement with both the experimentally determined and the calculated values of yield strength.",
journal = "Materials Characterization",
title = "Microstructure – Properties relationship in laser-welded AZ31B magnesium alloy",
volume = "208",
pages = "113664",
doi = "10.1016/j.matchar.2024.113664"
}

Vyskoč, M., Novaković, M., Potočnik, J., Kovačocy, P.,& Jurči, P.. (2024). Microstructure – Properties relationship in laser-welded AZ31B magnesium alloy. in Materials Characterization, 208, 113664.
https://doi.org/10.1016/j.matchar.2024.113664

Vyskoč M, Novaković M, Potočnik J, Kovačocy P, Jurči P. Microstructure – Properties relationship in laser-welded AZ31B magnesium alloy. in Materials Characterization. 2024;208:113664.
doi:10.1016/j.matchar.2024.113664 .

Vyskoč, Maroš, Novaković, Mirjana, Potočnik, Jelena, Kovačocy, Pavel, Jurči, Peter, "Microstructure – Properties relationship in laser-welded AZ31B magnesium alloy" in Materials Characterization, 208 (2024):113664,
https://doi.org/10.1016/j.matchar.2024.113664 . .

TY  - JOUR
AU  - Marković, Katarina
AU  - Kesić, Ana
AU  - Novaković, Mirjana M.
AU  - Grujović, Mirjana
AU  - Simijonović, Dušica
AU  - Avdović, Edina H.
AU  - Matić, Sanja
AU  - Paunović, Milica
AU  - Milutinović, Milena
AU  - Nikodijević, Danijela
AU  - Stefanović, Olgica
AU  - Marković, Zoran
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12826
AB  - This research explores the synthesis, characterization, and biological activities of silver nanoparticles (AgNPs) derived from acetone (AgNPs-acetone) and aqueous (AgNPs-H2O) extracts of Agrimonia eupatoria. The nanoparticles exhibit isometric morphology and uniform size distribution, as elucidated through Transmission Electron Microscopy (TEM) and high-resolution TEM (HRTEM) analyses. The utilization of Scanning Transmission Microscopy (STEM) with High-Angle Annular Dark-Field (HAADF) imaging and energy dispersive spectrometry (EDS) confirms the crystalline nature of AgNPs. Fourier Transform Infrared (FTIR) analysis reveals identical functional groups in the plant extracts and their corresponding AgNPs, suggesting the involvement of phytochemicals in the reduction of silver ions. Spectrophotometric monitoring of the synthesis process, influenced by various parameters, provides insights into the kinetics and optimal conditions for AgNP formation. The antioxidant activities of the plant extracts and synthesized AgNPs are evaluated through DPPH and ABTS methods, highlighting AgNPs-acetone as a potent antioxidant. Third-instar larvae exposed to the extracts have differential effects on DNA damage, with the acetone extract demonstrating antigenotoxic properties. Similarly, biosynthesized AgNPs-acetone displays antigenotoxic effects against EMS-induced DNA damage. The genotoxic effect of water extract and AgNPs-acetone was dose-dependent. Hemolytic potential is assessed on rat erythrocytes, revealing that low concentrations of AgNPs-acetone and AgNPs-H2O had a nontoxic effect on erythrocytes. Cytotoxicity assays demonstrate time-dependent and dose-dependent effects, with AgNPs-acetone exhibiting superior cytotoxicity. Proapoptotic activity is confirmed through apoptosis induction, emphasizing the potential therapeutic applications of AgNPs. The antimicrobial activity of AgNPs reveals concentration-dependent effects. AgNPs-H2O display better antibacterial activity, while antifungal activities are comparable between the two nanoparticle types.
T2  - RSC Advances
T1  - Biosynthesis and characterization of silver nanoparticles synthesized using extracts of Agrimonia eupatoria L. and in vitro and in vivo studies of potential medicinal applications
IS  - 7
SP  - 4591
EP  - 4606
DO  - 10.1039/D3RA07819A
ER  - 

@article{
author = "Marković, Katarina and Kesić, Ana and Novaković, Mirjana M. and Grujović, Mirjana and Simijonović, Dušica and Avdović, Edina H. and Matić, Sanja and Paunović, Milica and Milutinović, Milena and Nikodijević, Danijela and Stefanović, Olgica and Marković, Zoran",
year = "2024",
abstract = "This research explores the synthesis, characterization, and biological activities of silver nanoparticles (AgNPs) derived from acetone (AgNPs-acetone) and aqueous (AgNPs-H2O) extracts of Agrimonia eupatoria. The nanoparticles exhibit isometric morphology and uniform size distribution, as elucidated through Transmission Electron Microscopy (TEM) and high-resolution TEM (HRTEM) analyses. The utilization of Scanning Transmission Microscopy (STEM) with High-Angle Annular Dark-Field (HAADF) imaging and energy dispersive spectrometry (EDS) confirms the crystalline nature of AgNPs. Fourier Transform Infrared (FTIR) analysis reveals identical functional groups in the plant extracts and their corresponding AgNPs, suggesting the involvement of phytochemicals in the reduction of silver ions. Spectrophotometric monitoring of the synthesis process, influenced by various parameters, provides insights into the kinetics and optimal conditions for AgNP formation. The antioxidant activities of the plant extracts and synthesized AgNPs are evaluated through DPPH and ABTS methods, highlighting AgNPs-acetone as a potent antioxidant. Third-instar larvae exposed to the extracts have differential effects on DNA damage, with the acetone extract demonstrating antigenotoxic properties. Similarly, biosynthesized AgNPs-acetone displays antigenotoxic effects against EMS-induced DNA damage. The genotoxic effect of water extract and AgNPs-acetone was dose-dependent. Hemolytic potential is assessed on rat erythrocytes, revealing that low concentrations of AgNPs-acetone and AgNPs-H2O had a nontoxic effect on erythrocytes. Cytotoxicity assays demonstrate time-dependent and dose-dependent effects, with AgNPs-acetone exhibiting superior cytotoxicity. Proapoptotic activity is confirmed through apoptosis induction, emphasizing the potential therapeutic applications of AgNPs. The antimicrobial activity of AgNPs reveals concentration-dependent effects. AgNPs-H2O display better antibacterial activity, while antifungal activities are comparable between the two nanoparticle types.",
journal = "RSC Advances",
title = "Biosynthesis and characterization of silver nanoparticles synthesized using extracts of Agrimonia eupatoria L. and in vitro and in vivo studies of potential medicinal applications",
number = "7",
pages = "4591-4606",
doi = "10.1039/D3RA07819A"
}

Marković, K., Kesić, A., Novaković, M. M., Grujović, M., Simijonović, D., Avdović, E. H., Matić, S., Paunović, M., Milutinović, M., Nikodijević, D., Stefanović, O.,& Marković, Z.. (2024). Biosynthesis and characterization of silver nanoparticles synthesized using extracts of Agrimonia eupatoria L. and in vitro and in vivo studies of potential medicinal applications. in RSC Advances(7), 4591-4606.
https://doi.org/10.1039/D3RA07819A

Marković K, Kesić A, Novaković MM, Grujović M, Simijonović D, Avdović EH, Matić S, Paunović M, Milutinović M, Nikodijević D, Stefanović O, Marković Z. Biosynthesis and characterization of silver nanoparticles synthesized using extracts of Agrimonia eupatoria L. and in vitro and in vivo studies of potential medicinal applications. in RSC Advances. 2024;(7):4591-4606.
doi:10.1039/D3RA07819A .

Marković, Katarina, Kesić, Ana, Novaković, Mirjana M., Grujović, Mirjana, Simijonović, Dušica, Avdović, Edina H., Matić, Sanja, Paunović, Milica, Milutinović, Milena, Nikodijević, Danijela, Stefanović, Olgica, Marković, Zoran, "Biosynthesis and characterization of silver nanoparticles synthesized using extracts of Agrimonia eupatoria L. and in vitro and in vivo studies of potential medicinal applications" in RSC Advances, no. 7 (2024):4591-4606,
https://doi.org/10.1039/D3RA07819A . .

TY  - JOUR
AU  - Filipović Tričković, Jelena G.
AU  - Momčilović, Miloš
AU  - Joksić, Gordana
AU  - Živković, Sanja
AU  - Ilić, Bojana
AU  - Ognjanović, Miloš
AU  - Novaković, Mirjana
AU  - Valenta-Šobot, Ana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11376
AB  - Silver nanoparticles (AgNPs) have been recognized for widespread biological applications due to their antimicrobial and anti-inflammatory effect, especially in dentistry and for wound healing. Many features determine their beneficial or toxic potential, such as their synthesis type, size, morphology, coating, and concentration. Most synthesis types rely on the use of synthetic chemicals, which contributes to their toxicity. We present an environmentally friendly method for “green” synthesis of AgNPs from the silver target by pulsed laser ablation in liquid (PLAL) using citrate as the stabilizing agent. Since AgNPs already have many dental applications, we examined their antibacterial effect against supragingival biofilm-forming bacteria and bacterial strains known to cause resistant dental infections. Their impact on human fibroblast cells’ cytotoxicity, proliferation (measured by XTT and Ki-67 immunofluorescence), pro/antioxidant balance, and lipid peroxidation (measured by PAB and LPP) was evaluated. AgNPs1 (21 nm) and AgNPs2 (15 nm) spherical nanoparticles with good overall stability were obtained. The highest tested dose of smaller nanoparticles (AgNPs2) displays not only an effective antibacterial effect against the tested oral bacteria strains but also a pro-oxidant and cytotoxic effect on fibroblast cells. Lower doses do not affect bacterial survival but increase the cell proliferation and metabolic activity and show an antioxidative effect, suggesting that different concentrations display a substantially opposite effect. Compared to larger AgNPs1, smaller AgNPs2 possess more potent biological effects, indicating that size plays a pivotal role in their activity. Such opposite outcomes could be important for their medical application, and high concentrations could be used for the inhibition of dental biofilm formation and resistant dental infections as well as proliferative conditions, while low doses could be beneficial in the treatment of atrophic and inflammatory disorders. Finally, we showed that silver-targeted PLAL, using citrate as a stabilizing agent, produces biologically potent nanoparticles that could have many applications depending on their size and concentration.
T2  - Nanomaterials and Nanotechnology
T1  - Laser Ablated Citrate-Stabilized Silver Nanoparticles Display Size and Concentration Dependant Biological Effects
VL  - 2023
SP  - e9854356
DO  - 10.1155/2023/9854356
ER  - 

@article{
author = "Filipović Tričković, Jelena G. and Momčilović, Miloš and Joksić, Gordana and Živković, Sanja and Ilić, Bojana and Ognjanović, Miloš and Novaković, Mirjana and Valenta-Šobot, Ana",
year = "2023",
abstract = "Silver nanoparticles (AgNPs) have been recognized for widespread biological applications due to their antimicrobial and anti-inflammatory effect, especially in dentistry and for wound healing. Many features determine their beneficial or toxic potential, such as their synthesis type, size, morphology, coating, and concentration. Most synthesis types rely on the use of synthetic chemicals, which contributes to their toxicity. We present an environmentally friendly method for “green” synthesis of AgNPs from the silver target by pulsed laser ablation in liquid (PLAL) using citrate as the stabilizing agent. Since AgNPs already have many dental applications, we examined their antibacterial effect against supragingival biofilm-forming bacteria and bacterial strains known to cause resistant dental infections. Their impact on human fibroblast cells’ cytotoxicity, proliferation (measured by XTT and Ki-67 immunofluorescence), pro/antioxidant balance, and lipid peroxidation (measured by PAB and LPP) was evaluated. AgNPs1 (21 nm) and AgNPs2 (15 nm) spherical nanoparticles with good overall stability were obtained. The highest tested dose of smaller nanoparticles (AgNPs2) displays not only an effective antibacterial effect against the tested oral bacteria strains but also a pro-oxidant and cytotoxic effect on fibroblast cells. Lower doses do not affect bacterial survival but increase the cell proliferation and metabolic activity and show an antioxidative effect, suggesting that different concentrations display a substantially opposite effect. Compared to larger AgNPs1, smaller AgNPs2 possess more potent biological effects, indicating that size plays a pivotal role in their activity. Such opposite outcomes could be important for their medical application, and high concentrations could be used for the inhibition of dental biofilm formation and resistant dental infections as well as proliferative conditions, while low doses could be beneficial in the treatment of atrophic and inflammatory disorders. Finally, we showed that silver-targeted PLAL, using citrate as a stabilizing agent, produces biologically potent nanoparticles that could have many applications depending on their size and concentration.",
journal = "Nanomaterials and Nanotechnology",
title = "Laser Ablated Citrate-Stabilized Silver Nanoparticles Display Size and Concentration Dependant Biological Effects",
volume = "2023",
pages = "e9854356",
doi = "10.1155/2023/9854356"
}

Filipović Tričković, J. G., Momčilović, M., Joksić, G., Živković, S., Ilić, B., Ognjanović, M., Novaković, M.,& Valenta-Šobot, A.. (2023). Laser Ablated Citrate-Stabilized Silver Nanoparticles Display Size and Concentration Dependant Biological Effects. in Nanomaterials and Nanotechnology, 2023, e9854356.
https://doi.org/10.1155/2023/9854356

Filipović Tričković JG, Momčilović M, Joksić G, Živković S, Ilić B, Ognjanović M, Novaković M, Valenta-Šobot A. Laser Ablated Citrate-Stabilized Silver Nanoparticles Display Size and Concentration Dependant Biological Effects. in Nanomaterials and Nanotechnology. 2023;2023:e9854356.
doi:10.1155/2023/9854356 .

Filipović Tričković, Jelena G., Momčilović, Miloš, Joksić, Gordana, Živković, Sanja, Ilić, Bojana, Ognjanović, Miloš, Novaković, Mirjana, Valenta-Šobot, Ana, "Laser Ablated Citrate-Stabilized Silver Nanoparticles Display Size and Concentration Dependant Biological Effects" in Nanomaterials and Nanotechnology, 2023 (2023):e9854356,
https://doi.org/10.1155/2023/9854356 . .

TY  - CONF
AU  - Laban, Bojana
AU  - Vujačić Nikezić, Ana
AU  - Novaković, Mirjana
AU  - Kovačević, Marija
AU  - Vasić Anićijević, Dragana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13034
AB  - U ovom radu, transmisionom elektronskom mikroskopijom (TEM) i teorijskim proračunom (DFT), izučavana je adsorpcija boje Indocijanin zeleno (ICG) na površini nanočestica srebra (AgNPs). Studija je pokazala da su dobijene hibridne nanočestice sastava Ag-jezgro-ICG-omotač. TEM merenjima potvrđeno je formiranje omotača boje oko AgNPs debljine ~ 3 do 4 nm, dok su HRTEM merenja pokazala mikrostrukturne promene AgNPs usled adsorpcije boje ICG. Teorijskim proračunom utvrđeno je da se molekul ICG boje vezuje kovalentno za atom Ag, na površini AgNPs, preko svoje SO3− grupe.
AB  - Here we present the TEM and DFT study of hybrid nanoparticles consisting of an Ag core and Indocyanine green (ICG) shell. TEM measurements revealed the formation of a distinctive ~ 3 to 4 nm thick halo around the particles, while HRTEM measurements show microstructural changes in NPs. The DFT calculations were used to investigate the energetics of interaction between ICG molecule and Ag-surface. The obtained data indicate a strong interaction between Ag-atom from NPs surface and SO3− group of ICG molecule.
PB  - Belgrade : Serbian Chemical Society
C3  - 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings
T1  - Mikroskopska i teorijska studija adsorpcije boje Indocijanin zeleno na površini nanočestica srebra
T1  - TEM and DFT study of Indocyanine green adsorption on a silver nanoparticle surface
SP  - 89
EP  - 89
UR  - https://hdl.handle.net/21.15107/rcub_vinar_13034
ER  - 

@conference{
author = "Laban, Bojana and Vujačić Nikezić, Ana and Novaković, Mirjana and Kovačević, Marija and Vasić Anićijević, Dragana",
year = "2023",
abstract = "U ovom radu, transmisionom elektronskom mikroskopijom (TEM) i teorijskim proračunom (DFT), izučavana je adsorpcija boje Indocijanin zeleno (ICG) na površini nanočestica srebra (AgNPs). Studija je pokazala da su dobijene hibridne nanočestice sastava Ag-jezgro-ICG-omotač. TEM merenjima potvrđeno je formiranje omotača boje oko AgNPs debljine ~ 3 do 4 nm, dok su HRTEM merenja pokazala mikrostrukturne promene AgNPs usled adsorpcije boje ICG. Teorijskim proračunom utvrđeno je da se molekul ICG boje vezuje kovalentno za atom Ag, na površini AgNPs, preko svoje SO3− grupe., Here we present the TEM and DFT study of hybrid nanoparticles consisting of an Ag core and Indocyanine green (ICG) shell. TEM measurements revealed the formation of a distinctive ~ 3 to 4 nm thick halo around the particles, while HRTEM measurements show microstructural changes in NPs. The DFT calculations were used to investigate the energetics of interaction between ICG molecule and Ag-surface. The obtained data indicate a strong interaction between Ag-atom from NPs surface and SO3− group of ICG molecule.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings",
title = "Mikroskopska i teorijska studija adsorpcije boje Indocijanin zeleno na površini nanočestica srebra, TEM and DFT study of Indocyanine green adsorption on a silver nanoparticle surface",
pages = "89-89",
url = "https://hdl.handle.net/21.15107/rcub_vinar_13034"
}

Laban, B., Vujačić Nikezić, A., Novaković, M., Kovačević, M.,& Vasić Anićijević, D.. (2023). Mikroskopska i teorijska studija adsorpcije boje Indocijanin zeleno na površini nanočestica srebra. in 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings
Belgrade : Serbian Chemical Society., 89-89.
https://hdl.handle.net/21.15107/rcub_vinar_13034

Laban B, Vujačić Nikezić A, Novaković M, Kovačević M, Vasić Anićijević D. Mikroskopska i teorijska studija adsorpcije boje Indocijanin zeleno na površini nanočestica srebra. in 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings. 2023;:89-89.
https://hdl.handle.net/21.15107/rcub_vinar_13034 .

Laban, Bojana, Vujačić Nikezić, Ana, Novaković, Mirjana, Kovačević, Marija, Vasić Anićijević, Dragana, "Mikroskopska i teorijska studija adsorpcije boje Indocijanin zeleno na površini nanočestica srebra" in 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings (2023):89-89,
https://hdl.handle.net/21.15107/rcub_vinar_13034 .

TY  - JOUR
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Ž.
AU  - Rajić, Vladimir
AU  - Bartolić, Dragana
AU  - Novaković, Mirjana M.
AU  - Tadić, Nenad B.
AU  - Cvjetićanin, Nikola
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10448
AB  - Pure and samarium (Sm3+) - or zirconium (Zr4+)-doped TiO2 nanofibers were synthesized by electrospinning method followed by calcination at 500 °C for 1 h. As-spun fibers were smooth, straight and continuous, whilst EDS analysis confirmed the fiber composition and incorporation of dopants in the fibers. Doping with Sm3+ and Zr4+ greatly inhibited the phase transformation of anatase to rutile, by surrounding of Sm3+ ions through formation of Ti-O-Sm bonds and by replacement of Ti4+ ions with larger Zr4+ ions. This was confirmed by HRTEM and SAED analysis. The size of nanofibers was determined to be 133 nm, 175 nm and 155 nm for pure, (0.5%)Sm3+:TiO2 and (1%)Zr4+:TiO2, respectively. After calcination, TiO2 crystal lattice with interplanar spacing of 0.353 nm of (101) crystal plane was not significantly disturbed by Sm doping whilst crystal lattice spacing of 0.357 nm of (101) planes of anatase phase in case TiO2:1.0%Zr4+, significantly differs from the value of pure TiO2 (0.352 nm), thus implying that Zr was doped into substitutional sites of the TiO2 lattice. The indirect band gaps were calculated to be in the range 3.07–3.24 eV. TiO2:0.5%Sm3+ and TiO2:1.0%Zr4+ exhibited higher specific surface area, of 47.1 and 59.4 m2/g, respectively, than pure TiO2 fibers (19.7 m2/g). Effects of Sm3+ and Zr4+ dopant content on the photodegradation efficiency of methylene blue (MB) were studied. TiO2:0.5%Sm3+ and TiO2:1.0%Zr4+ nanofibers have shown the highest photocatalytic activity of 97% and 98% with constant rates 0.01768 min−1 and 0.01939 min−1, respectively, within180 min irradiation under visible light.
T2  - Journal of Alloys and Compounds
T1  - Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic activity of TiO2 nanofibers
VL  - 930
SP  - 167423
DO  - 10.1016/j.jallcom.2022.167423
ER  - 

@article{
author = "Ahmetović, Sanita and Vasiljević, Zorka Ž. and Rajić, Vladimir and Bartolić, Dragana and Novaković, Mirjana M. and Tadić, Nenad B. and Cvjetićanin, Nikola and Nikolić, Maria Vesna",
year = "2023",
abstract = "Pure and samarium (Sm3+) - or zirconium (Zr4+)-doped TiO2 nanofibers were synthesized by electrospinning method followed by calcination at 500 °C for 1 h. As-spun fibers were smooth, straight and continuous, whilst EDS analysis confirmed the fiber composition and incorporation of dopants in the fibers. Doping with Sm3+ and Zr4+ greatly inhibited the phase transformation of anatase to rutile, by surrounding of Sm3+ ions through formation of Ti-O-Sm bonds and by replacement of Ti4+ ions with larger Zr4+ ions. This was confirmed by HRTEM and SAED analysis. The size of nanofibers was determined to be 133 nm, 175 nm and 155 nm for pure, (0.5%)Sm3+:TiO2 and (1%)Zr4+:TiO2, respectively. After calcination, TiO2 crystal lattice with interplanar spacing of 0.353 nm of (101) crystal plane was not significantly disturbed by Sm doping whilst crystal lattice spacing of 0.357 nm of (101) planes of anatase phase in case TiO2:1.0%Zr4+, significantly differs from the value of pure TiO2 (0.352 nm), thus implying that Zr was doped into substitutional sites of the TiO2 lattice. The indirect band gaps were calculated to be in the range 3.07–3.24 eV. TiO2:0.5%Sm3+ and TiO2:1.0%Zr4+ exhibited higher specific surface area, of 47.1 and 59.4 m2/g, respectively, than pure TiO2 fibers (19.7 m2/g). Effects of Sm3+ and Zr4+ dopant content on the photodegradation efficiency of methylene blue (MB) were studied. TiO2:0.5%Sm3+ and TiO2:1.0%Zr4+ nanofibers have shown the highest photocatalytic activity of 97% and 98% with constant rates 0.01768 min−1 and 0.01939 min−1, respectively, within180 min irradiation under visible light.",
journal = "Journal of Alloys and Compounds",
title = "Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic activity of TiO2 nanofibers",
volume = "930",
pages = "167423",
doi = "10.1016/j.jallcom.2022.167423"
}

Ahmetović, S., Vasiljević, Z. Ž., Rajić, V., Bartolić, D., Novaković, M. M., Tadić, N. B., Cvjetićanin, N.,& Nikolić, M. V.. (2023). Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic activity of TiO2 nanofibers. in Journal of Alloys and Compounds, 930, 167423.
https://doi.org/10.1016/j.jallcom.2022.167423

Ahmetović S, Vasiljević ZŽ, Rajić V, Bartolić D, Novaković MM, Tadić NB, Cvjetićanin N, Nikolić MV. Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic activity of TiO2 nanofibers. in Journal of Alloys and Compounds. 2023;930:167423.
doi:10.1016/j.jallcom.2022.167423 .

Ahmetović, Sanita, Vasiljević, Zorka Ž., Rajić, Vladimir, Bartolić, Dragana, Novaković, Mirjana M., Tadić, Nenad B., Cvjetićanin, Nikola, Nikolić, Maria Vesna, "Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic activity of TiO2 nanofibers" in Journal of Alloys and Compounds, 930 (2023):167423,
https://doi.org/10.1016/j.jallcom.2022.167423 . .

TY  - JOUR
AU  - Vukmirović, Jelena
AU  - Joksović, Sara
AU  - Piper, Danica
AU  - Nesterović, Andrea
AU  - Novaković, Mirjana M.
AU  - Rakić, Srđan
AU  - Milanović, Marija
AU  - Srdić, Vladimir
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10456
AB  - Structure of epitaxial LaMnO3 thin films grown on different single crystal substrates by unconventional polymer assisted deposition (PAD) method was investigated. Epitaxial films were prepared from lanthanum manganite water based solutions deposited by spin coating on single crystal MgO (001), SrTiO3 (001) and SrTiO3 (110) substrates, and the influence of substrate type on the film structure was analysed. Better uniformity of the epitaxial LaMnO3 films on SrTiO3 substrates was obtained, but a non-stoichiometric La1-xMnO3 phase was formed after the heat treatment at 750 °C. In addition, the prepared thin films were multiple annealed at different temperatures up to 900 °C, in order to investigate importance of post-annealing treatment. Epitaxial nature of the prepared films was preserved after annealing at up to 900 °C and the structure rearrangement through formation of cell closer to bulk stochiometric LaMnO3 phase was observed.
T2  - Ceramics International
T1  - Epitaxial growth of LaMnO3 thin films on different single crystal substrates by polymer assisted deposition
VL  - 49
IS  - 2
SP  - 2366
EP  - 2372
DO  - 10.1016/j.ceramint.2022.09.207
ER  - 

@article{
author = "Vukmirović, Jelena and Joksović, Sara and Piper, Danica and Nesterović, Andrea and Novaković, Mirjana M. and Rakić, Srđan and Milanović, Marija and Srdić, Vladimir",
year = "2023",
abstract = "Structure of epitaxial LaMnO3 thin films grown on different single crystal substrates by unconventional polymer assisted deposition (PAD) method was investigated. Epitaxial films were prepared from lanthanum manganite water based solutions deposited by spin coating on single crystal MgO (001), SrTiO3 (001) and SrTiO3 (110) substrates, and the influence of substrate type on the film structure was analysed. Better uniformity of the epitaxial LaMnO3 films on SrTiO3 substrates was obtained, but a non-stoichiometric La1-xMnO3 phase was formed after the heat treatment at 750 °C. In addition, the prepared thin films were multiple annealed at different temperatures up to 900 °C, in order to investigate importance of post-annealing treatment. Epitaxial nature of the prepared films was preserved after annealing at up to 900 °C and the structure rearrangement through formation of cell closer to bulk stochiometric LaMnO3 phase was observed.",
journal = "Ceramics International",
title = "Epitaxial growth of LaMnO3 thin films on different single crystal substrates by polymer assisted deposition",
volume = "49",
number = "2",
pages = "2366-2372",
doi = "10.1016/j.ceramint.2022.09.207"
}

Vukmirović, J., Joksović, S., Piper, D., Nesterović, A., Novaković, M. M., Rakić, S., Milanović, M.,& Srdić, V.. (2023). Epitaxial growth of LaMnO3 thin films on different single crystal substrates by polymer assisted deposition. in Ceramics International, 49(2), 2366-2372.
https://doi.org/10.1016/j.ceramint.2022.09.207

Vukmirović J, Joksović S, Piper D, Nesterović A, Novaković MM, Rakić S, Milanović M, Srdić V. Epitaxial growth of LaMnO3 thin films on different single crystal substrates by polymer assisted deposition. in Ceramics International. 2023;49(2):2366-2372.
doi:10.1016/j.ceramint.2022.09.207 .

Vukmirović, Jelena, Joksović, Sara, Piper, Danica, Nesterović, Andrea, Novaković, Mirjana M., Rakić, Srđan, Milanović, Marija, Srdić, Vladimir, "Epitaxial growth of LaMnO3 thin films on different single crystal substrates by polymer assisted deposition" in Ceramics International, 49, no. 2 (2023):2366-2372,
https://doi.org/10.1016/j.ceramint.2022.09.207 . .

TY  - JOUR
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Rajić, Vladimir
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10575
AB  - The present paper investigates the effects of thermal annealing on the structural and magnetic properties of Co thin films. The films were prepared by using electron-beam evaporation method onto Si (100) wafers and annealed in vacuum at 200 °C, 300 °C and 400 °C. A combination of X-ray diffraction, Rutherford backscattering spectrometry, X-ray photoelectron spectroscopy, transmission electron microscopy and energy-dispersive X-ray spectrometry were used to characterize structural properties and the composition of the films, while magnetic behavior was studied by magneto-optical Kerr effect measurements. It was found that as deposited Co layer show predominantly uniaxial magnetic anisotropy, while after annealing at 200 °C and 300 °C a strong influence of fourfold contribution is observed, which is assigned to the thermally induced HCP→FCC phase transition. With further increase in annealing temperature of 400 °C the isotropic contribution becomes the main component of magnetization. Besides, a strong variation in coercive field with annealing temperature was observed, where the coercivity seems to depend closely on the crystallite size. The highest value of HC equals ∼70 Oe and was found for the temperature of 400 °C, where also mixing at the interface has started and formation of CoSi was observed.
T2  - Journal of Alloys and Compounds
T1  - Study on the structural and magnetic properties of e-beam evaporated Co thin films annealed in vacuum
VL  - 937
SP  - 168411
DO  - 10.1016/j.jallcom.2022.168411
ER  - 

@article{
author = "Novaković, Mirjana M. and Popović, Maja and Rajić, Vladimir",
year = "2023",
abstract = "The present paper investigates the effects of thermal annealing on the structural and magnetic properties of Co thin films. The films were prepared by using electron-beam evaporation method onto Si (100) wafers and annealed in vacuum at 200 °C, 300 °C and 400 °C. A combination of X-ray diffraction, Rutherford backscattering spectrometry, X-ray photoelectron spectroscopy, transmission electron microscopy and energy-dispersive X-ray spectrometry were used to characterize structural properties and the composition of the films, while magnetic behavior was studied by magneto-optical Kerr effect measurements. It was found that as deposited Co layer show predominantly uniaxial magnetic anisotropy, while after annealing at 200 °C and 300 °C a strong influence of fourfold contribution is observed, which is assigned to the thermally induced HCP→FCC phase transition. With further increase in annealing temperature of 400 °C the isotropic contribution becomes the main component of magnetization. Besides, a strong variation in coercive field with annealing temperature was observed, where the coercivity seems to depend closely on the crystallite size. The highest value of HC equals ∼70 Oe and was found for the temperature of 400 °C, where also mixing at the interface has started and formation of CoSi was observed.",
journal = "Journal of Alloys and Compounds",
title = "Study on the structural and magnetic properties of e-beam evaporated Co thin films annealed in vacuum",
volume = "937",
pages = "168411",
doi = "10.1016/j.jallcom.2022.168411"
}

Novaković, M. M., Popović, M.,& Rajić, V.. (2023). Study on the structural and magnetic properties of e-beam evaporated Co thin films annealed in vacuum. in Journal of Alloys and Compounds, 937, 168411.
https://doi.org/10.1016/j.jallcom.2022.168411

Novaković MM, Popović M, Rajić V. Study on the structural and magnetic properties of e-beam evaporated Co thin films annealed in vacuum. in Journal of Alloys and Compounds. 2023;937:168411.
doi:10.1016/j.jallcom.2022.168411 .

Novaković, Mirjana M., Popović, Maja, Rajić, Vladimir, "Study on the structural and magnetic properties of e-beam evaporated Co thin films annealed in vacuum" in Journal of Alloys and Compounds, 937 (2023):168411,
https://doi.org/10.1016/j.jallcom.2022.168411 . .

TY  - JOUR
AU  - Popović, Maja
AU  - Novaković, Mirjana M.
AU  - Vaňa, Dušan
AU  - Ronning, Carsten
AU  - Jugović, Dragana
AU  - Rajić, Vladimir
AU  - Noga, Pavol
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10746
AB  - Titanium nitride (TiN) is an attractive alternative for modern and future photonic applications, as its optical properties can be engineered over a wide spectral range. In this study, we have used sequential implantation of gold and silver ions with varying ion fluence, as well as subsequent annealing, in order to modify the optical and plasmonic properties of TiN thin films and correlated this to their structural properties. Our investigations show that the columnar structure of the TiN films is partially destroyed upon implantation, but metallic Au and Ag nanoparticles are formed. The irradiation further induces a reduction of the lattice constant as well as changes the TiN stoichiometry and grain size. From the optical point of view, the implanted films possess less metallicity with increasing Ag fluence and losses several times lower than the as-deposited film, which can be correlated with the deficiency of nitrogen and additional defects. Subsequent annealing partially recovered the destroyed columnar structure, and the films become more metallic where the optical losses are much smaller in comparison to the as-implanted situation, being comparable to those of pure Au and Ag. In this way, by varying the implantation fluence of silver ions properly while keeping the gold fluence constant, we were able to optimize experimental parameters in such a way to ensure the formation of TiN with desirable optical performances.
T2  - Optical Materials
T1  - Structure-dependent optical properties of Au/Ag irradiated TiN thin films
VL  - 138
SP  - 113684
DO  - 10.1016/j.optmat.2023.113684
UR  - https://hdl.handle.net/21.15107/rcub_dais_14289
ER  - 

@article{
author = "Popović, Maja and Novaković, Mirjana M. and Vaňa, Dušan and Ronning, Carsten and Jugović, Dragana and Rajić, Vladimir and Noga, Pavol",
year = "2023",
abstract = "Titanium nitride (TiN) is an attractive alternative for modern and future photonic applications, as its optical properties can be engineered over a wide spectral range. In this study, we have used sequential implantation of gold and silver ions with varying ion fluence, as well as subsequent annealing, in order to modify the optical and plasmonic properties of TiN thin films and correlated this to their structural properties. Our investigations show that the columnar structure of the TiN films is partially destroyed upon implantation, but metallic Au and Ag nanoparticles are formed. The irradiation further induces a reduction of the lattice constant as well as changes the TiN stoichiometry and grain size. From the optical point of view, the implanted films possess less metallicity with increasing Ag fluence and losses several times lower than the as-deposited film, which can be correlated with the deficiency of nitrogen and additional defects. Subsequent annealing partially recovered the destroyed columnar structure, and the films become more metallic where the optical losses are much smaller in comparison to the as-implanted situation, being comparable to those of pure Au and Ag. In this way, by varying the implantation fluence of silver ions properly while keeping the gold fluence constant, we were able to optimize experimental parameters in such a way to ensure the formation of TiN with desirable optical performances.",
journal = "Optical Materials",
title = "Structure-dependent optical properties of Au/Ag irradiated TiN thin films",
volume = "138",
pages = "113684",
doi = "10.1016/j.optmat.2023.113684",
url = "https://hdl.handle.net/21.15107/rcub_dais_14289"
}

Popović, M., Novaković, M. M., Vaňa, D., Ronning, C., Jugović, D., Rajić, V.,& Noga, P.. (2023). Structure-dependent optical properties of Au/Ag irradiated TiN thin films. in Optical Materials, 138, 113684.
https://doi.org/10.1016/j.optmat.2023.113684
https://hdl.handle.net/21.15107/rcub_dais_14289

Popović M, Novaković MM, Vaňa D, Ronning C, Jugović D, Rajić V, Noga P. Structure-dependent optical properties of Au/Ag irradiated TiN thin films. in Optical Materials. 2023;138:113684.
doi:10.1016/j.optmat.2023.113684
https://hdl.handle.net/21.15107/rcub_dais_14289 .

Popović, Maja, Novaković, Mirjana M., Vaňa, Dušan, Ronning, Carsten, Jugović, Dragana, Rajić, Vladimir, Noga, Pavol, "Structure-dependent optical properties of Au/Ag irradiated TiN thin films" in Optical Materials, 138 (2023):113684,
https://doi.org/10.1016/j.optmat.2023.113684 .,
https://hdl.handle.net/21.15107/rcub_dais_14289 .

TY  - JOUR
AU  - Priputen, Pavol
AU  - Noga, Pavol
AU  - Novaković, Mirjana M.
AU  - Potočnik, Jelena
AU  - Antušek, Andrej
AU  - Bujdak, R.
AU  - Bachleda, E.
AU  - Drienovsky, Marian
AU  - Nosko, Martin
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11382
AB  - The effect of Cu concentration on the order/disorder behaviour of the AlCoCuxFeNi (x = 0.6 to 3.0) multi-principal element alloys was investigated. BCC and/or FCC phases were observed in the microstructures of the alloys after casting and annealing at 1050 ◦C followed by slow cooling. Interesting is that the alloys form ordered structures after casting and disordered structures after annealing and slow cooling, while the opposite would be expected. The ordering in the as-cast state is explained by the strong affinity of Al to transition metals, which results in the formation of supercell structures having sublattices occupied by certain elements only. Disordering after annealing has two reasons. Either the phase is composed of nearly pure element (Cu) and is disordered by default or it is composed of randomly distributed nano-segregated regions within a single phase resulting in a uniform distribution of all elements in the sublattices and therefore appearing to be macroscopically disordered. The reason for the formation of such nano-segregated areas might reside in the reduction of Gibbs free energy due to the annealing by the interplay between enthalpy and entropy.
T2  - Intermetallics
T1  - Unconventional order/disorder behaviour in Al–Co–Cu–Fe–Ni multi-principal element alloys after casting and annealing
VL  - 162
SP  - 108016
DO  - 10.1016/j.intermet.2023.108016
ER  - 

@article{
author = "Priputen, Pavol and Noga, Pavol and Novaković, Mirjana M. and Potočnik, Jelena and Antušek, Andrej and Bujdak, R. and Bachleda, E. and Drienovsky, Marian and Nosko, Martin",
year = "2023",
abstract = "The effect of Cu concentration on the order/disorder behaviour of the AlCoCuxFeNi (x = 0.6 to 3.0) multi-principal element alloys was investigated. BCC and/or FCC phases were observed in the microstructures of the alloys after casting and annealing at 1050 ◦C followed by slow cooling. Interesting is that the alloys form ordered structures after casting and disordered structures after annealing and slow cooling, while the opposite would be expected. The ordering in the as-cast state is explained by the strong affinity of Al to transition metals, which results in the formation of supercell structures having sublattices occupied by certain elements only. Disordering after annealing has two reasons. Either the phase is composed of nearly pure element (Cu) and is disordered by default or it is composed of randomly distributed nano-segregated regions within a single phase resulting in a uniform distribution of all elements in the sublattices and therefore appearing to be macroscopically disordered. The reason for the formation of such nano-segregated areas might reside in the reduction of Gibbs free energy due to the annealing by the interplay between enthalpy and entropy.",
journal = "Intermetallics",
title = "Unconventional order/disorder behaviour in Al–Co–Cu–Fe–Ni multi-principal element alloys after casting and annealing",
volume = "162",
pages = "108016",
doi = "10.1016/j.intermet.2023.108016"
}

Priputen, P., Noga, P., Novaković, M. M., Potočnik, J., Antušek, A., Bujdak, R., Bachleda, E., Drienovsky, M.,& Nosko, M.. (2023). Unconventional order/disorder behaviour in Al–Co–Cu–Fe–Ni multi-principal element alloys after casting and annealing. in Intermetallics, 162, 108016.
https://doi.org/10.1016/j.intermet.2023.108016

Priputen P, Noga P, Novaković MM, Potočnik J, Antušek A, Bujdak R, Bachleda E, Drienovsky M, Nosko M. Unconventional order/disorder behaviour in Al–Co–Cu–Fe–Ni multi-principal element alloys after casting and annealing. in Intermetallics. 2023;162:108016.
doi:10.1016/j.intermet.2023.108016 .

Priputen, Pavol, Noga, Pavol, Novaković, Mirjana M., Potočnik, Jelena, Antušek, Andrej, Bujdak, R., Bachleda, E., Drienovsky, Marian, Nosko, Martin, "Unconventional order/disorder behaviour in Al–Co–Cu–Fe–Ni multi-principal element alloys after casting and annealing" in Intermetallics, 162 (2023):108016,
https://doi.org/10.1016/j.intermet.2023.108016 . .

TY  - JOUR
AU  - Piper, Danica
AU  - Vukmirović, Jelena
AU  - Toković, Iva
AU  - Kukovecz, Akos
AU  - Szenti, Imre
AU  - Novaković, Mirjana M.
AU  - Milanović, Marija
AU  - Srdić, Vladimir
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11565
AB  - In this work bilayer structures, composed of ferromagnetic manganite and ferroelectric titanate layers, were obtained by solution deposition technique. The first step in preparation of the bilayer thin films was deposition of manganite (LaMnO3 or La0.7Sr0.3MnO3) layer by water-based polymer assisted deposition (PAD). Polycrystalline structures were obtained when manganite films were deposited by spin coating on commercial Pt/TiO2/SiO2/Si type substrate, whereas epitaxial films were grown on a single crystal SrTiO3 with (001) orientation substrate. The second ferroelectric titanate (BaTiO3 or Ba0.7Sr0.3TiO3) layer was deposited by spin coating using sol-gel method. The obtained bilayer structures have thickness below 100 nm, and epitaxial growth of the Ba0.7Sr0.3TiO3 film on the La0.7Sr0.3MnO3 surface was obtained, due to the similar lattice parameters between these two crystal structures.
T2  - Processing and Application of Ceramics
T1  - Epitaxial bilayer La0.7Sr0.3MnO3/Ba0.7Sr0.3TiO3 thin films obtained by polymer assisted deposition
VL  - 17
IS  - 2
SP  - 197
EP  - 202
DO  - 10.2298/PAC2302197P
ER  - 

@article{
author = "Piper, Danica and Vukmirović, Jelena and Toković, Iva and Kukovecz, Akos and Szenti, Imre and Novaković, Mirjana M. and Milanović, Marija and Srdić, Vladimir",
year = "2023",
abstract = "In this work bilayer structures, composed of ferromagnetic manganite and ferroelectric titanate layers, were obtained by solution deposition technique. The first step in preparation of the bilayer thin films was deposition of manganite (LaMnO3 or La0.7Sr0.3MnO3) layer by water-based polymer assisted deposition (PAD). Polycrystalline structures were obtained when manganite films were deposited by spin coating on commercial Pt/TiO2/SiO2/Si type substrate, whereas epitaxial films were grown on a single crystal SrTiO3 with (001) orientation substrate. The second ferroelectric titanate (BaTiO3 or Ba0.7Sr0.3TiO3) layer was deposited by spin coating using sol-gel method. The obtained bilayer structures have thickness below 100 nm, and epitaxial growth of the Ba0.7Sr0.3TiO3 film on the La0.7Sr0.3MnO3 surface was obtained, due to the similar lattice parameters between these two crystal structures.",
journal = "Processing and Application of Ceramics",
title = "Epitaxial bilayer La0.7Sr0.3MnO3/Ba0.7Sr0.3TiO3 thin films obtained by polymer assisted deposition",
volume = "17",
number = "2",
pages = "197-202",
doi = "10.2298/PAC2302197P"
}

Piper, D., Vukmirović, J., Toković, I., Kukovecz, A., Szenti, I., Novaković, M. M., Milanović, M.,& Srdić, V.. (2023). Epitaxial bilayer La0.7Sr0.3MnO3/Ba0.7Sr0.3TiO3 thin films obtained by polymer assisted deposition. in Processing and Application of Ceramics, 17(2), 197-202.
https://doi.org/10.2298/PAC2302197P

Piper D, Vukmirović J, Toković I, Kukovecz A, Szenti I, Novaković MM, Milanović M, Srdić V. Epitaxial bilayer La0.7Sr0.3MnO3/Ba0.7Sr0.3TiO3 thin films obtained by polymer assisted deposition. in Processing and Application of Ceramics. 2023;17(2):197-202.
doi:10.2298/PAC2302197P .

Piper, Danica, Vukmirović, Jelena, Toković, Iva, Kukovecz, Akos, Szenti, Imre, Novaković, Mirjana M., Milanović, Marija, Srdić, Vladimir, "Epitaxial bilayer La0.7Sr0.3MnO3/Ba0.7Sr0.3TiO3 thin films obtained by polymer assisted deposition" in Processing and Application of Ceramics, 17, no. 2 (2023):197-202,
https://doi.org/10.2298/PAC2302197P . .

TY  - CONF
AU  - Piper, Danica
AU  - Vukmirović, Jelena
AU  - Milanović, Marija
AU  - Toković, Iva
AU  - Novaković, Mirjana
AU  - Srdić, Vladimir S.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11745
AB  - Development of faster, smaller and less energy consuming devices led to new concept of electronics called spintronics. Spintronics are based on properties of electrons and associated magnetic moments. Promising materials which can follow this concept are materials based on lanthanum manganite (LaMnO3). LaMnO3 is specific due its magnetoelectric properties such as giant magnetoresistance (GMR) and multiferroic behaviour. Also, perovskite structure of LaMnO3 is very sensitive to external stimuli and ions substitution which gives possibility of phase control and fast manipulation of electric and magnetic properties. Ultrathin epitaxial films are conventionally obtained from gas phase, utilizing sophisticated equipment and a lot of energy. Following the trend of devices miniaturization, this form of material is very desirable. The aim of this work was obtaining epitaxial thins film based on LaMnO3 / La1-xSrxMnO3 from liquid phase. Polymer assisted deposition (PAD) technique was used as synthesis method. LaMnO3 / La1-xSrxMnO3 solutions were prepared by dissolving of La(NO3)3·6H2O and Mn(NO3)2·4H2O in the distilled water, while strontium nitrate was used as a source of Sr2+ ions. Polyethileneimine and EDTA were added to stabilize aqueous solution of precursors Prepared solutions of polymer and precursors were deposited on single crystal SrTiO3 (001) substrate in order to achieve highly oriented growth. Deposited films were thermally treated up to 900 °C. After the annealing process, structural characterization was performed by XRD and HR-TEM, while functional properties were investigated by magnetic measurements
PB  - Novi Sad : Faculty of Technology, University of Novi Sad
C3  - CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, programme and book of abstracts; Oct 11-14, Novi Sad
T1  - Processing and characterization of ultrathin epitaxial LaMnO3 based films by chemicalv soultion deposition
SP  - 80
EP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11745
ER  - 

@conference{
author = "Piper, Danica and Vukmirović, Jelena and Milanović, Marija and Toković, Iva and Novaković, Mirjana and Srdić, Vladimir S.",
year = "2023",
abstract = "Development of faster, smaller and less energy consuming devices led to new concept of electronics called spintronics. Spintronics are based on properties of electrons and associated magnetic moments. Promising materials which can follow this concept are materials based on lanthanum manganite (LaMnO3). LaMnO3 is specific due its magnetoelectric properties such as giant magnetoresistance (GMR) and multiferroic behaviour. Also, perovskite structure of LaMnO3 is very sensitive to external stimuli and ions substitution which gives possibility of phase control and fast manipulation of electric and magnetic properties. Ultrathin epitaxial films are conventionally obtained from gas phase, utilizing sophisticated equipment and a lot of energy. Following the trend of devices miniaturization, this form of material is very desirable. The aim of this work was obtaining epitaxial thins film based on LaMnO3 / La1-xSrxMnO3 from liquid phase. Polymer assisted deposition (PAD) technique was used as synthesis method. LaMnO3 / La1-xSrxMnO3 solutions were prepared by dissolving of La(NO3)3·6H2O and Mn(NO3)2·4H2O in the distilled water, while strontium nitrate was used as a source of Sr2+ ions. Polyethileneimine and EDTA were added to stabilize aqueous solution of precursors Prepared solutions of polymer and precursors were deposited on single crystal SrTiO3 (001) substrate in order to achieve highly oriented growth. Deposited films were thermally treated up to 900 °C. After the annealing process, structural characterization was performed by XRD and HR-TEM, while functional properties were investigated by magnetic measurements",
publisher = "Novi Sad : Faculty of Technology, University of Novi Sad",
journal = "CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, programme and book of abstracts; Oct 11-14, Novi Sad",
title = "Processing and characterization of ultrathin epitaxial LaMnO3 based films by chemicalv soultion deposition",
pages = "80-80",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11745"
}

Piper, D., Vukmirović, J., Milanović, M., Toković, I., Novaković, M.,& Srdić, V. S.. (2023). Processing and characterization of ultrathin epitaxial LaMnO3 based films by chemicalv soultion deposition. in CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, programme and book of abstracts; Oct 11-14, Novi Sad
Novi Sad : Faculty of Technology, University of Novi Sad., 80-80.
https://hdl.handle.net/21.15107/rcub_vinar_11745

Piper D, Vukmirović J, Milanović M, Toković I, Novaković M, Srdić VS. Processing and characterization of ultrathin epitaxial LaMnO3 based films by chemicalv soultion deposition. in CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, programme and book of abstracts; Oct 11-14, Novi Sad. 2023;:80-80.
https://hdl.handle.net/21.15107/rcub_vinar_11745 .

Piper, Danica, Vukmirović, Jelena, Milanović, Marija, Toković, Iva, Novaković, Mirjana, Srdić, Vladimir S., "Processing and characterization of ultrathin epitaxial LaMnO3 based films by chemicalv soultion deposition" in CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, programme and book of abstracts; Oct 11-14, Novi Sad (2023):80-80,
https://hdl.handle.net/21.15107/rcub_vinar_11745 .

TY  - CONF
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Ž.
AU  - Rajić, Vladimir
AU  - Bartolić, Dragana
AU  - Novaković, Mirjana
AU  - Tadić, Nenad
AU  - Cvjetićanin, Nikola
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11747
AB  - In this work, titanium dioxide (TiO2) nanofibers doped with 0.5–5 mol% zirconium ions (Zr4+) were synthesized by combining the sol-gel process and electrospinning method, and calcined at 500 °C. The morphological, structural and optical properties of pure and Zr-doped TiO2 nanofibers were investigated. According to the XRD and FTIR analyses, the addition of Zr as a dopant suppressed the transformation of anatase to rutile phase. Scanning electron microscopy showed that all fibers were smooth, fragile and randomly oriented after the calcination process. HRTEM analysis revealed that Zr4+ ions were incorporated at the substitutional sites in the anatase TiO2 crystalline lattice. The photocatalytic efficiency for degradation of methylene blue (MB) was examined for both pure and Zr-doped TiO2 samples. Nanofibers doped with 1% of Zr4+ ions have shown the highest photocatalytic activity of 98%, wich can be explained by considering lower PL intensity in the PL spectrum of this sample, indicating suppressed electron-hole recombination.
PB  - Novi Sad : Faculty of Technology, University of Novi Sad
C3  - CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, programme and book of abstracts; Oct 11-14, Novi Sad
T1  - Investigating the effects of Zr doping on the titanium dioxide nanofibres
SP  - 134
EP  - 134
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11747
ER  - 

@conference{
author = "Ahmetović, Sanita and Vasiljević, Zorka Ž. and Rajić, Vladimir and Bartolić, Dragana and Novaković, Mirjana and Tadić, Nenad and Cvjetićanin, Nikola and Nikolić, Maria Vesna",
year = "2023",
abstract = "In this work, titanium dioxide (TiO2) nanofibers doped with 0.5–5 mol% zirconium ions (Zr4+) were synthesized by combining the sol-gel process and electrospinning method, and calcined at 500 °C. The morphological, structural and optical properties of pure and Zr-doped TiO2 nanofibers were investigated. According to the XRD and FTIR analyses, the addition of Zr as a dopant suppressed the transformation of anatase to rutile phase. Scanning electron microscopy showed that all fibers were smooth, fragile and randomly oriented after the calcination process. HRTEM analysis revealed that Zr4+ ions were incorporated at the substitutional sites in the anatase TiO2 crystalline lattice. The photocatalytic efficiency for degradation of methylene blue (MB) was examined for both pure and Zr-doped TiO2 samples. Nanofibers doped with 1% of Zr4+ ions have shown the highest photocatalytic activity of 98%, wich can be explained by considering lower PL intensity in the PL spectrum of this sample, indicating suppressed electron-hole recombination.",
publisher = "Novi Sad : Faculty of Technology, University of Novi Sad",
journal = "CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, programme and book of abstracts; Oct 11-14, Novi Sad",
title = "Investigating the effects of Zr doping on the titanium dioxide nanofibres",
pages = "134-134",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11747"
}

Ahmetović, S., Vasiljević, Z. Ž., Rajić, V., Bartolić, D., Novaković, M., Tadić, N., Cvjetićanin, N.,& Nikolić, M. V.. (2023). Investigating the effects of Zr doping on the titanium dioxide nanofibres. in CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, programme and book of abstracts; Oct 11-14, Novi Sad
Novi Sad : Faculty of Technology, University of Novi Sad., 134-134.
https://hdl.handle.net/21.15107/rcub_vinar_11747

Ahmetović S, Vasiljević ZŽ, Rajić V, Bartolić D, Novaković M, Tadić N, Cvjetićanin N, Nikolić MV. Investigating the effects of Zr doping on the titanium dioxide nanofibres. in CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, programme and book of abstracts; Oct 11-14, Novi Sad. 2023;:134-134.
https://hdl.handle.net/21.15107/rcub_vinar_11747 .

Ahmetović, Sanita, Vasiljević, Zorka Ž., Rajić, Vladimir, Bartolić, Dragana, Novaković, Mirjana, Tadić, Nenad, Cvjetićanin, Nikola, Nikolić, Maria Vesna, "Investigating the effects of Zr doping on the titanium dioxide nanofibres" in CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, programme and book of abstracts; Oct 11-14, Novi Sad (2023):134-134,
https://hdl.handle.net/21.15107/rcub_vinar_11747 .

TY  - CONF
AU  - Potočnik, Jelena
AU  - Božinović, Nevena
AU  - Popović, M.
AU  - Nenadović, Miloš
AU  - Novaković, Mirjana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11804
AB  - We have investigated the effect of thickness and deposition conditions on the structural and optical properties of nanostructured copper (Cu) thin films, deposited using e-beam glancing angle deposition. In the first series of experiments, samples were deposited in the form of helical nanostructures, to the thicknesses of 160 nm, 280 nm, 450 nm and 780 nm. The second set of the samples was fabricated in the form of zigzag and square-spiral nanostructures to a thickness of approximately 300 nm, by using different azimuthal rotations (φ = 180o, 90o, 45o, 22.5o and 11o). Field-emission scanning electron microscopy and high-resolution transmission electron microscopy were utilized to explore morphological and structural properties, while optical studies were done using spectroscopic ellipsometry. The results showed that for both series of the samples the deposited structures are porous with nanometer-sized particles. Detailed analyses of optical properties revealed that the thickness of the films had a significant impact on the dielectric function of Cu structures. With increasing the thickness from 160 nm to 780 nm the surface plasmon resonance (SPR) peak was shifted from 1.31 eV to 1.05 eV. Changes in SPR peak position were associated with the growth mechanism and the size of deposited nanostructures. For the second series of the samples, it was found that as the azimuthal rotation decreases, deposited nanostructures become more porous with larger number of grown arms. Optical analysis showed that the properties of the grown Cu films are greatly influenced by the deposition conditions. By decreasing the φ parameter, SPR peak was shifted from 1.19 eV to 0.75 eV, which can be correlated with the size distribution and agglomeration of Cu nanoparticles.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
T1  - Helical and square-spiral copper nanostructures: The effect of thickness and deposition conditions on the structural and optical properties
SP  - 60
EP  - 60
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11804
ER  - 

@conference{
author = "Potočnik, Jelena and Božinović, Nevena and Popović, M. and Nenadović, Miloš and Novaković, Mirjana",
year = "2023",
abstract = "We have investigated the effect of thickness and deposition conditions on the structural and optical properties of nanostructured copper (Cu) thin films, deposited using e-beam glancing angle deposition. In the first series of experiments, samples were deposited in the form of helical nanostructures, to the thicknesses of 160 nm, 280 nm, 450 nm and 780 nm. The second set of the samples was fabricated in the form of zigzag and square-spiral nanostructures to a thickness of approximately 300 nm, by using different azimuthal rotations (φ = 180o, 90o, 45o, 22.5o and 11o). Field-emission scanning electron microscopy and high-resolution transmission electron microscopy were utilized to explore morphological and structural properties, while optical studies were done using spectroscopic ellipsometry. The results showed that for both series of the samples the deposited structures are porous with nanometer-sized particles. Detailed analyses of optical properties revealed that the thickness of the films had a significant impact on the dielectric function of Cu structures. With increasing the thickness from 160 nm to 780 nm the surface plasmon resonance (SPR) peak was shifted from 1.31 eV to 1.05 eV. Changes in SPR peak position were associated with the growth mechanism and the size of deposited nanostructures. For the second series of the samples, it was found that as the azimuthal rotation decreases, deposited nanostructures become more porous with larger number of grown arms. Optical analysis showed that the properties of the grown Cu films are greatly influenced by the deposition conditions. By decreasing the φ parameter, SPR peak was shifted from 1.19 eV to 0.75 eV, which can be correlated with the size distribution and agglomeration of Cu nanoparticles.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade",
title = "Helical and square-spiral copper nanostructures: The effect of thickness and deposition conditions on the structural and optical properties",
pages = "60-60",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11804"
}

Potočnik, J., Božinović, N., Popović, M., Nenadović, M.,& Novaković, M.. (2023). Helical and square-spiral copper nanostructures: The effect of thickness and deposition conditions on the structural and optical properties. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 60-60.
https://hdl.handle.net/21.15107/rcub_vinar_11804

Potočnik J, Božinović N, Popović M, Nenadović M, Novaković M. Helical and square-spiral copper nanostructures: The effect of thickness and deposition conditions on the structural and optical properties. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade. 2023;:60-60.
https://hdl.handle.net/21.15107/rcub_vinar_11804 .

Potočnik, Jelena, Božinović, Nevena, Popović, M., Nenadović, Miloš, Novaković, Mirjana, "Helical and square-spiral copper nanostructures: The effect of thickness and deposition conditions on the structural and optical properties" in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade (2023):60-60,
https://hdl.handle.net/21.15107/rcub_vinar_11804 .

TY  - CONF
AU  - Popović, M.
AU  - Novaković, Mirjana
AU  - Pjević, Dejan
AU  - Vana, D.
AU  - Jugović, Dragana
AU  - Noga, Pavol
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11805
AB  - The ion implantation technique has a number of advantages over conventional methods for the improvement of thin films that offer the various possibilities of their use in different industrial and technological fields. Herein, we present the effects of metal ion implantation on the structural and optical properties of TiN thin films. TiN films of 170 nm thickness were grown by d.c. reactive sputtering on Si (100) wafers and then irradiated at 5×1016 ions/cm2 with either Au, Ag, or Cu ions by using two different energies per each implanted metal. The results showed that as deposited TiN crystallizes in form of fcc cubic structure, with the crystallites preferentially oriented along the (111) plane. For all implanted layers the cubic crystallographic structure was preserved, but compared to as deposited TiN the crystallites were smaller and the lattice was contracted. Besides, the surface compositional analysis of as deposited sample showed the coexistence of TiN, TiO2 and TiOxNy phases and this was related to the surface oxidation of the films due to the exposure to air. After implantation, the results were almost similar for all metals, showing an increase in TiO2 contribution and the formation of pure metallic Au and Ag phases, while copper is in the Cu2+ state, which is attributed to Cu(II)-oxide and Cu(OH)2. The microstructural characteristics including defect formation, changes in the crystallite size and lattice contraction, and also growth of different metallic phases during implantations were correlated with the findings of the optical characterization of the implanted films. For as deposited film we found energy gap of 2.91 eV, which was lower than the value typical for TiN. After implantation the gap was shifted to higher energies, while at the visible part of the region, additional energy levels, at photon energies below 2.9 eV were observed. Further, all implanted films showed degraded photocatalytic activity compared to as deposited TiN, among which Cu-implanted samples exhibited the best photocatalytic performances. The lower photocatalytic activity of Au and Ag-implanted films compared to Cu implantations was ascribed to larger structural defects and formation of less favorable electronic states.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
T1  - Metal ion-implanted TiN thin films: Induced effects on structural and optical properties
SP  - 63
EP  - 63
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11805
ER  - 

@conference{
author = "Popović, M. and Novaković, Mirjana and Pjević, Dejan and Vana, D. and Jugović, Dragana and Noga, Pavol",
year = "2023",
abstract = "The ion implantation technique has a number of advantages over conventional methods for the improvement of thin films that offer the various possibilities of their use in different industrial and technological fields. Herein, we present the effects of metal ion implantation on the structural and optical properties of TiN thin films. TiN films of 170 nm thickness were grown by d.c. reactive sputtering on Si (100) wafers and then irradiated at 5×1016 ions/cm2 with either Au, Ag, or Cu ions by using two different energies per each implanted metal. The results showed that as deposited TiN crystallizes in form of fcc cubic structure, with the crystallites preferentially oriented along the (111) plane. For all implanted layers the cubic crystallographic structure was preserved, but compared to as deposited TiN the crystallites were smaller and the lattice was contracted. Besides, the surface compositional analysis of as deposited sample showed the coexistence of TiN, TiO2 and TiOxNy phases and this was related to the surface oxidation of the films due to the exposure to air. After implantation, the results were almost similar for all metals, showing an increase in TiO2 contribution and the formation of pure metallic Au and Ag phases, while copper is in the Cu2+ state, which is attributed to Cu(II)-oxide and Cu(OH)2. The microstructural characteristics including defect formation, changes in the crystallite size and lattice contraction, and also growth of different metallic phases during implantations were correlated with the findings of the optical characterization of the implanted films. For as deposited film we found energy gap of 2.91 eV, which was lower than the value typical for TiN. After implantation the gap was shifted to higher energies, while at the visible part of the region, additional energy levels, at photon energies below 2.9 eV were observed. Further, all implanted films showed degraded photocatalytic activity compared to as deposited TiN, among which Cu-implanted samples exhibited the best photocatalytic performances. The lower photocatalytic activity of Au and Ag-implanted films compared to Cu implantations was ascribed to larger structural defects and formation of less favorable electronic states.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade",
title = "Metal ion-implanted TiN thin films: Induced effects on structural and optical properties",
pages = "63-63",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11805"
}

Popović, M., Novaković, M., Pjević, D., Vana, D., Jugović, D.,& Noga, P.. (2023). Metal ion-implanted TiN thin films: Induced effects on structural and optical properties. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 63-63.
https://hdl.handle.net/21.15107/rcub_vinar_11805

Popović M, Novaković M, Pjević D, Vana D, Jugović D, Noga P. Metal ion-implanted TiN thin films: Induced effects on structural and optical properties. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade. 2023;:63-63.
https://hdl.handle.net/21.15107/rcub_vinar_11805 .

Popović, M., Novaković, Mirjana, Pjević, Dejan, Vana, D., Jugović, Dragana, Noga, Pavol, "Metal ion-implanted TiN thin films: Induced effects on structural and optical properties" in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade (2023):63-63,
https://hdl.handle.net/21.15107/rcub_vinar_11805 .

TY  - CONF
AU  - Georgijević, Jelena P.
AU  - Srejić, Irena
AU  - Novaković, Mirjana
AU  - Rakočević, Lazar
AU  - Potočnik, Jelena
AU  - Maksić, Aleksandar
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12315
AB  - To enhance the utilization efficiency of platinum (Pt) in electrochemical energy conversion, the precise selection of support materials presents a highly promising strategy. We have developed an efficient and stable bifunctional catalyst for methanol oxidation (MOR) and hydrogen evolution (HER) reaction in an alkaline medium. The Pt-based electrocatalyst, denoted as Pt/e-rGO with low Pt loading was successfully synthesized using graphene sheets as the support via chemical reduction using formic acid as the reducing agent. Graphene sheets are obtained by anodic electrochemical exfoliation of graphite tape. Significant enhancement of intrinsic activity toward MOR and HER was achieved for Pt/e-rGO compared to the commercial Pt/C catalyst. Structural characterization was performed by TEM, SEM and XPS. XPS analysis shows that the graphene is highly reduced. TEM analysis unveiled that the majority of the Pt nanoparticles (NPs) exhibit a diameter in the range of 4-5 nanometers, which is significant because the efficiency of electrooxidation of methanol on supported Pt NPs shows a strong dependence on particle size distribution. Catalyst activity was studied by cyclic voltammetry and linear sweep voltammetry in 0.1M KOH. Electrochemical active surface area (ECSA) was measured by CO-stripping voltammetry and estimated to be 67.93 m2 /g. Current density of 11.28 mA/cm2 ECSA at 0.82 V vs. RHE for MOR is achieved. Onset potential for MOR is 0.55 V vs. RHE. Meanwhile, for HER overporential at the current density -10 mA/cm2 ECSA was 119 mV.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Electrochemically exfoliated graphene as support of platinum nanoparticles for methanol oxidation reaction and hydrogen evolution reaction
SP  - 41
EP  - 41
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12315
ER  - 

@conference{
author = "Georgijević, Jelena P. and Srejić, Irena and Novaković, Mirjana and Rakočević, Lazar and Potočnik, Jelena and Maksić, Aleksandar",
year = "2023",
abstract = "To enhance the utilization efficiency of platinum (Pt) in electrochemical energy conversion, the precise selection of support materials presents a highly promising strategy. We have developed an efficient and stable bifunctional catalyst for methanol oxidation (MOR) and hydrogen evolution (HER) reaction in an alkaline medium. The Pt-based electrocatalyst, denoted as Pt/e-rGO with low Pt loading was successfully synthesized using graphene sheets as the support via chemical reduction using formic acid as the reducing agent. Graphene sheets are obtained by anodic electrochemical exfoliation of graphite tape. Significant enhancement of intrinsic activity toward MOR and HER was achieved for Pt/e-rGO compared to the commercial Pt/C catalyst. Structural characterization was performed by TEM, SEM and XPS. XPS analysis shows that the graphene is highly reduced. TEM analysis unveiled that the majority of the Pt nanoparticles (NPs) exhibit a diameter in the range of 4-5 nanometers, which is significant because the efficiency of electrooxidation of methanol on supported Pt NPs shows a strong dependence on particle size distribution. Catalyst activity was studied by cyclic voltammetry and linear sweep voltammetry in 0.1M KOH. Electrochemical active surface area (ECSA) was measured by CO-stripping voltammetry and estimated to be 67.93 m2 /g. Current density of 11.28 mA/cm2 ECSA at 0.82 V vs. RHE for MOR is achieved. Onset potential for MOR is 0.55 V vs. RHE. Meanwhile, for HER overporential at the current density -10 mA/cm2 ECSA was 119 mV.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Electrochemically exfoliated graphene as support of platinum nanoparticles for methanol oxidation reaction and hydrogen evolution reaction",
pages = "41-41",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12315"
}

Georgijević, J. P., Srejić, I., Novaković, M., Rakočević, L., Potočnik, J.,& Maksić, A.. (2023). Electrochemically exfoliated graphene as support of platinum nanoparticles for methanol oxidation reaction and hydrogen evolution reaction. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 41-41.
https://hdl.handle.net/21.15107/rcub_vinar_12315

Georgijević JP, Srejić I, Novaković M, Rakočević L, Potočnik J, Maksić A. Electrochemically exfoliated graphene as support of platinum nanoparticles for methanol oxidation reaction and hydrogen evolution reaction. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:41-41.
https://hdl.handle.net/21.15107/rcub_vinar_12315 .

Georgijević, Jelena P., Srejić, Irena, Novaković, Mirjana, Rakočević, Lazar, Potočnik, Jelena, Maksić, Aleksandar, "Electrochemically exfoliated graphene as support of platinum nanoparticles for methanol oxidation reaction and hydrogen evolution reaction" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):41-41,
https://hdl.handle.net/21.15107/rcub_vinar_12315 .

TY  - CONF
AU  - Božinović, Nevena
AU  - Petrović, Suzana
AU  - Novaković, Mirjana
AU  - Rajić, Vladimir
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12323
AB  - In scientific and commericial needs, there was a great demand for the modification of biomaterials that would replace damaged tissue in the body. Today, titanium alloys are mostly used for these purposes in combination with metals of similar physicochemical properties. In this context, there is an increased interest in the development of novel biocompatible materials with enhanced surface interface. The experimental results of a Ti/Zr/Ti thin film system deposited on a substrate pre-patterned by a dynamic femtosecond laser are presented. Surface pattering with micrometre characteristics in the form of spikes is being investigated in order to generate arrayed surface patterns for biomedical pruposes. Femtosecond laser pulses were used to acquire black silicon surfaces adorned with conical structures under 0,65 bar in SF6 ambient pressure. The silicon surface contains high aspect ratio spikes with conical morphologies of about 2μm, 400 angle opening, and 13·106 cm-2 density that is roughly uniform over the treatment area. Ion sputtering was employed on sech a prepared surface to make a unique composite thin film composed of two layers of Ti and a subsurface layer of Zr. The deposited Ti/Zr/Ti cpomiste has a thickness of 400 nm. The composition and surface morphology were evaluated using FESEM-EDS and XPS methods. Transmission electron spectroscopy and energy dispersive X-ray spectroscopy demonstrated that post-deposition of Ti/Zr/Ti over Si laser-patterned resulted in diffusion of Ti and Zr layers.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Thin film deposition of multilayers on silicon substrate laser pre-patterned
SP  - 51
EP  - 51
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12323
ER  - 

@conference{
author = "Božinović, Nevena and Petrović, Suzana and Novaković, Mirjana and Rajić, Vladimir",
year = "2023",
abstract = "In scientific and commericial needs, there was a great demand for the modification of biomaterials that would replace damaged tissue in the body. Today, titanium alloys are mostly used for these purposes in combination with metals of similar physicochemical properties. In this context, there is an increased interest in the development of novel biocompatible materials with enhanced surface interface. The experimental results of a Ti/Zr/Ti thin film system deposited on a substrate pre-patterned by a dynamic femtosecond laser are presented. Surface pattering with micrometre characteristics in the form of spikes is being investigated in order to generate arrayed surface patterns for biomedical pruposes. Femtosecond laser pulses were used to acquire black silicon surfaces adorned with conical structures under 0,65 bar in SF6 ambient pressure. The silicon surface contains high aspect ratio spikes with conical morphologies of about 2μm, 400 angle opening, and 13·106 cm-2 density that is roughly uniform over the treatment area. Ion sputtering was employed on sech a prepared surface to make a unique composite thin film composed of two layers of Ti and a subsurface layer of Zr. The deposited Ti/Zr/Ti cpomiste has a thickness of 400 nm. The composition and surface morphology were evaluated using FESEM-EDS and XPS methods. Transmission electron spectroscopy and energy dispersive X-ray spectroscopy demonstrated that post-deposition of Ti/Zr/Ti over Si laser-patterned resulted in diffusion of Ti and Zr layers.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Thin film deposition of multilayers on silicon substrate laser pre-patterned",
pages = "51-51",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12323"
}

Božinović, N., Petrović, S., Novaković, M.,& Rajić, V.. (2023). Thin film deposition of multilayers on silicon substrate laser pre-patterned. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 51-51.
https://hdl.handle.net/21.15107/rcub_vinar_12323

Božinović N, Petrović S, Novaković M, Rajić V. Thin film deposition of multilayers on silicon substrate laser pre-patterned. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:51-51.
https://hdl.handle.net/21.15107/rcub_vinar_12323 .

Božinović, Nevena, Petrović, Suzana, Novaković, Mirjana, Rajić, Vladimir, "Thin film deposition of multilayers on silicon substrate laser pre-patterned" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):51-51,
https://hdl.handle.net/21.15107/rcub_vinar_12323 .

TY  - JOUR
AU  - Radetić, Tamara
AU  - Popović, Miljana M.
AU  - Novaković, Mirjana M.
AU  - Rajić, Vladimir
AU  - Romhanji, Endre L.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12726
AB  - The Fe-bearing intermetallic phases present in the as-cast AA6026 alloy and their evolution during homogenization treatments at 480-550°C were investigated using optical microscopy, SEM, and TEM techniques in combination with EDS analysis. In addition to the α-Al(Fe,Mn)Si phase with dendritic morphology, two types of plate-like Fe-bearing microconstituents were revealed in the microstructure of the as-cast alloy. The EDS microanalysis and electron diffraction showed that one set of platelets represented thin sections of α-Al(Fe,Mn)Si microconstituent. The other set of plate-like microconstituents was identified as a tetragonal, silicon-rich δ-Al4(Fe,Mn)Si2 phase. The formation of the δ-Al4(Fe,Mn)Si2 phase was attributed to the chemical composition of the alloy. During homogenization, the metastable δ-Al4(Fe,Mn)Si2 transformed into the α-Al(Fe,Mn)Si phase and fragmented. The dendritic α-Al(Fe,Mn)Si microconstituents underwent fragmentation. However, while the α-Al(Fe,Mn)Si microconstituents preserved a b.c.c. crystal lattice throughout the process, the product of the transformation of the δ-Al4(Fe,Mn)Si2 phase exhibited primitive cubic lattice.
AB  - Ispitivanje prisustva faza koje sadrže Fe u mikrostrukturi livene legure AA6026, kao i njihova evolucija tokom postupaka homogenizacije na temperaturama od 480-550 °C, sprovedena su korišćenjem optičke mikroskopije, skenirajuće elektronske mikroskopije (SEM) i transmisione elektronske mikroskopije (TEM) u kombinaciji sa analizom EDS-a. Osim faze α-Al(Fe,Mn)Si sa dendritskom morfologijom, identifikovane su dve vrste pločastih mikrokonstituenata koji sadrže Fe u mikrostrukturi livene legure. EDS mikroanaliza i elektronska difrakcija pokazali su da jedan skup ploča predstavlja samo tanke sekcije mikrokonstituente α-Al(Fe,Mn)Si. Drugi skup pločastih mikrokonstituenata identifikovan je kao četvrtasta, silicijumom bogata faza δ-Al4 (Fe,Mn)Si2 . Formiranje faze δ-Al4 (Fe,Mn)Si2 povezano je sa hemijskim sastavom legure. Tokom homogenizacije, metastabilna faza δ-Al4 (Fe,Mn)Si2 transformisala se u fazu α-Al(Fe,Mn)Si i fragmentirala. Dendritski mikrokonstituenti α-Al(Fe,Mn)Si takođe su fragmentirali. Međutim, dok su mikrokonstituenti α-Al(Fe,Mn)Si sačuvali kubnu kristalnu rešetku tipa b.c.c. tokom procesa, proizvod transformacije faze δ-Al4 (Fe,Mn)Si2 pokazao je prostu kubnu rešetku.
T2  - Journal of Mining and Metallurgy, Section B: Metallurgy
T1  - Identification of Fe-bearing phases in the as-cast microstructure of AA6026 alloy and their evolution during homogenization treatment
T1  - Prepoznavanje faza koje sadrže Fe u mikrostrukturi livene legure AA6026 i njihova evolucija tokom postupka homogenizacije
VL  - 59
IS  - 2
SP  - 327
EP  - 338
DO  - 10.2298/JMMB230611028R
ER  - 

@article{
author = "Radetić, Tamara and Popović, Miljana M. and Novaković, Mirjana M. and Rajić, Vladimir and Romhanji, Endre L.",
year = "2023",
abstract = "The Fe-bearing intermetallic phases present in the as-cast AA6026 alloy and their evolution during homogenization treatments at 480-550°C were investigated using optical microscopy, SEM, and TEM techniques in combination with EDS analysis. In addition to the α-Al(Fe,Mn)Si phase with dendritic morphology, two types of plate-like Fe-bearing microconstituents were revealed in the microstructure of the as-cast alloy. The EDS microanalysis and electron diffraction showed that one set of platelets represented thin sections of α-Al(Fe,Mn)Si microconstituent. The other set of plate-like microconstituents was identified as a tetragonal, silicon-rich δ-Al4(Fe,Mn)Si2 phase. The formation of the δ-Al4(Fe,Mn)Si2 phase was attributed to the chemical composition of the alloy. During homogenization, the metastable δ-Al4(Fe,Mn)Si2 transformed into the α-Al(Fe,Mn)Si phase and fragmented. The dendritic α-Al(Fe,Mn)Si microconstituents underwent fragmentation. However, while the α-Al(Fe,Mn)Si microconstituents preserved a b.c.c. crystal lattice throughout the process, the product of the transformation of the δ-Al4(Fe,Mn)Si2 phase exhibited primitive cubic lattice., Ispitivanje prisustva faza koje sadrže Fe u mikrostrukturi livene legure AA6026, kao i njihova evolucija tokom postupaka homogenizacije na temperaturama od 480-550 °C, sprovedena su korišćenjem optičke mikroskopije, skenirajuće elektronske mikroskopije (SEM) i transmisione elektronske mikroskopije (TEM) u kombinaciji sa analizom EDS-a. Osim faze α-Al(Fe,Mn)Si sa dendritskom morfologijom, identifikovane su dve vrste pločastih mikrokonstituenata koji sadrže Fe u mikrostrukturi livene legure. EDS mikroanaliza i elektronska difrakcija pokazali su da jedan skup ploča predstavlja samo tanke sekcije mikrokonstituente α-Al(Fe,Mn)Si. Drugi skup pločastih mikrokonstituenata identifikovan je kao četvrtasta, silicijumom bogata faza δ-Al4 (Fe,Mn)Si2 . Formiranje faze δ-Al4 (Fe,Mn)Si2 povezano je sa hemijskim sastavom legure. Tokom homogenizacije, metastabilna faza δ-Al4 (Fe,Mn)Si2 transformisala se u fazu α-Al(Fe,Mn)Si i fragmentirala. Dendritski mikrokonstituenti α-Al(Fe,Mn)Si takođe su fragmentirali. Međutim, dok su mikrokonstituenti α-Al(Fe,Mn)Si sačuvali kubnu kristalnu rešetku tipa b.c.c. tokom procesa, proizvod transformacije faze δ-Al4 (Fe,Mn)Si2 pokazao je prostu kubnu rešetku.",
journal = "Journal of Mining and Metallurgy, Section B: Metallurgy",
title = "Identification of Fe-bearing phases in the as-cast microstructure of AA6026 alloy and their evolution during homogenization treatment, Prepoznavanje faza koje sadrže Fe u mikrostrukturi livene legure AA6026 i njihova evolucija tokom postupka homogenizacije",
volume = "59",
number = "2",
pages = "327-338",
doi = "10.2298/JMMB230611028R"
}

Radetić, T., Popović, M. M., Novaković, M. M., Rajić, V.,& Romhanji, E. L.. (2023). Identification of Fe-bearing phases in the as-cast microstructure of AA6026 alloy and their evolution during homogenization treatment. in Journal of Mining and Metallurgy, Section B: Metallurgy, 59(2), 327-338.
https://doi.org/10.2298/JMMB230611028R

Radetić T, Popović MM, Novaković MM, Rajić V, Romhanji EL. Identification of Fe-bearing phases in the as-cast microstructure of AA6026 alloy and their evolution during homogenization treatment. in Journal of Mining and Metallurgy, Section B: Metallurgy. 2023;59(2):327-338.
doi:10.2298/JMMB230611028R .

Radetić, Tamara, Popović, Miljana M., Novaković, Mirjana M., Rajić, Vladimir, Romhanji, Endre L., "Identification of Fe-bearing phases in the as-cast microstructure of AA6026 alloy and their evolution during homogenization treatment" in Journal of Mining and Metallurgy, Section B: Metallurgy, 59, no. 2 (2023):327-338,
https://doi.org/10.2298/JMMB230611028R . .

TY  - JOUR
AU  - Milićević, Nemanja
AU  - Novaković, Mirjana M.
AU  - Potočnik, Jelena
AU  - Milović, Miloš
AU  - Rakočević, Lazar
AU  - Abazović, Nadica
AU  - Pjević, Dejan J.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10194
AB  - Enhanced optical properties of TiO2 thin films can be achieved by doping or coating with metals. Metal-doped TiO2 can reduce electron-hole recombination and increase hydroxyl radical concentration on the surface of TiO2, resulting in increase of the photocatalytic activity. TiO2 and TiO2-Au thin films were obtained by DC magnetron sputtering of Ti target with Ar ions in O2 atmosphere. In the case of Au buffered TiO2 thin films, two different systems were deposited for comparison. Post deposition annealing at 400 °C was carried out in nitrogen atmosphere for 3 h. The structural and optical characteristics of the prepared films were investigated in detail by the combination of high-resolution microscopic and spectroscopic techniques. The photo-degradation rate was measured using Rhodamine B which simulated pollutant. Post deposition annealing resulted in diffusion of Au atoms through the layer as it was revealed by transmission electron microscopy and energy dispersive X-ray spectroscopy. The obtained TiO2 thin films were found to be amorphous after deposition and annealing at 400 °C leads to crystallization of anatase phase. Analysis of the binding energy in the corresponding X-ray photoelectron spectra has confirmed stoichiometry of TiO2 and that concentration of Au on the surface can be controlled by sputtering and annealing conditions, thus changing optical properties by influencing the surface plasmonic nature. All Au doped TiO2 thin films exhibited enhanced wettability and photo-degradation rates when compared to pristine titania films. © 2022 Elsevier B.V.
T2  - Surfaces and Interfaces
T1  - Influencing surface phenomena by Au diffusion in buffered TiO2-Au thin films: Effects of deposition and annealing processing
VL  - 30
SP  - 101811
DO  - 10.1016/j.surfin.2022.101811
ER  - 

@article{
author = "Milićević, Nemanja and Novaković, Mirjana M. and Potočnik, Jelena and Milović, Miloš and Rakočević, Lazar and Abazović, Nadica and Pjević, Dejan J.",
year = "2022",
abstract = "Enhanced optical properties of TiO2 thin films can be achieved by doping or coating with metals. Metal-doped TiO2 can reduce electron-hole recombination and increase hydroxyl radical concentration on the surface of TiO2, resulting in increase of the photocatalytic activity. TiO2 and TiO2-Au thin films were obtained by DC magnetron sputtering of Ti target with Ar ions in O2 atmosphere. In the case of Au buffered TiO2 thin films, two different systems were deposited for comparison. Post deposition annealing at 400 °C was carried out in nitrogen atmosphere for 3 h. The structural and optical characteristics of the prepared films were investigated in detail by the combination of high-resolution microscopic and spectroscopic techniques. The photo-degradation rate was measured using Rhodamine B which simulated pollutant. Post deposition annealing resulted in diffusion of Au atoms through the layer as it was revealed by transmission electron microscopy and energy dispersive X-ray spectroscopy. The obtained TiO2 thin films were found to be amorphous after deposition and annealing at 400 °C leads to crystallization of anatase phase. Analysis of the binding energy in the corresponding X-ray photoelectron spectra has confirmed stoichiometry of TiO2 and that concentration of Au on the surface can be controlled by sputtering and annealing conditions, thus changing optical properties by influencing the surface plasmonic nature. All Au doped TiO2 thin films exhibited enhanced wettability and photo-degradation rates when compared to pristine titania films. © 2022 Elsevier B.V.",
journal = "Surfaces and Interfaces",
title = "Influencing surface phenomena by Au diffusion in buffered TiO2-Au thin films: Effects of deposition and annealing processing",
volume = "30",
pages = "101811",
doi = "10.1016/j.surfin.2022.101811"
}

Milićević, N., Novaković, M. M., Potočnik, J., Milović, M., Rakočević, L., Abazović, N.,& Pjević, D. J.. (2022). Influencing surface phenomena by Au diffusion in buffered TiO2-Au thin films: Effects of deposition and annealing processing. in Surfaces and Interfaces, 30, 101811.
https://doi.org/10.1016/j.surfin.2022.101811

Milićević N, Novaković MM, Potočnik J, Milović M, Rakočević L, Abazović N, Pjević DJ. Influencing surface phenomena by Au diffusion in buffered TiO2-Au thin films: Effects of deposition and annealing processing. in Surfaces and Interfaces. 2022;30:101811.
doi:10.1016/j.surfin.2022.101811 .

Milićević, Nemanja, Novaković, Mirjana M., Potočnik, Jelena, Milović, Miloš, Rakočević, Lazar, Abazović, Nadica, Pjević, Dejan J., "Influencing surface phenomena by Au diffusion in buffered TiO2-Au thin films: Effects of deposition and annealing processing" in Surfaces and Interfaces, 30 (2022):101811,
https://doi.org/10.1016/j.surfin.2022.101811 . .

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Joschko, Maximilian
AU  - Graf, Christina
AU  - Radmilović, Nadežda
AU  - Novaković, Mirjana M.
AU  - Validžić, Ivana Lj.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9955
AB  - Amorphous non-doped, iodine- and tin-doped Sb2S3 nanoparticles were prepared via the hot-injection method. HRTEM of amorphous undoped and doped samples revealed the formation of spherical nanoparticles of 20–50 nm diameter aggregated into clusters in the size of 100–200 nm. EDX analysis indicated the presence of desired elements in all observed samples. The bandgaps of non-doped and doped samples were determined from the reflectance spectra, and variations of the bandgaps, even small ones, are insufficient indications of doping. These uncertainties are further clarified by investigating crystalline undoped and doped samples in addition to the amorphous ones. XRPD results of the amorphous samples confirmed the amorphous structure, while Le Bail refinements of the crystalline samples show well-defined peaks from only the Sb2S3 phase, indicating a successful doping process. XPS measurements revealed that the phase of the undoped sample is free of impurities and that 3 d peaks of iodine and tin in the doped samples are present. The XPS valence bands shifted towards higher (I) or lower (Sn) binding energies compared to the undoped samples for both amorphous and crystalline samples, which is an additional support that incorporation of dopant ions in the Sb2S3 lattice took place.
T2  - Materials Science in Semiconductor Processing
T1  - Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles
VL  - 137
SP  - 106196
DO  - 10.1016/j.mssp.2021.106196
ER  - 

@article{
author = "Lojpur, Vesna and Joschko, Maximilian and Graf, Christina and Radmilović, Nadežda and Novaković, Mirjana M. and Validžić, Ivana Lj.",
year = "2022",
abstract = "Amorphous non-doped, iodine- and tin-doped Sb2S3 nanoparticles were prepared via the hot-injection method. HRTEM of amorphous undoped and doped samples revealed the formation of spherical nanoparticles of 20–50 nm diameter aggregated into clusters in the size of 100–200 nm. EDX analysis indicated the presence of desired elements in all observed samples. The bandgaps of non-doped and doped samples were determined from the reflectance spectra, and variations of the bandgaps, even small ones, are insufficient indications of doping. These uncertainties are further clarified by investigating crystalline undoped and doped samples in addition to the amorphous ones. XRPD results of the amorphous samples confirmed the amorphous structure, while Le Bail refinements of the crystalline samples show well-defined peaks from only the Sb2S3 phase, indicating a successful doping process. XPS measurements revealed that the phase of the undoped sample is free of impurities and that 3 d peaks of iodine and tin in the doped samples are present. The XPS valence bands shifted towards higher (I) or lower (Sn) binding energies compared to the undoped samples for both amorphous and crystalline samples, which is an additional support that incorporation of dopant ions in the Sb2S3 lattice took place.",
journal = "Materials Science in Semiconductor Processing",
title = "Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles",
volume = "137",
pages = "106196",
doi = "10.1016/j.mssp.2021.106196"
}

Lojpur, V., Joschko, M., Graf, C., Radmilović, N., Novaković, M. M.,& Validžić, I. Lj.. (2022). Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles. in Materials Science in Semiconductor Processing, 137, 106196.
https://doi.org/10.1016/j.mssp.2021.106196

Lojpur V, Joschko M, Graf C, Radmilović N, Novaković MM, Validžić IL. Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles. in Materials Science in Semiconductor Processing. 2022;137:106196.
doi:10.1016/j.mssp.2021.106196 .

Lojpur, Vesna, Joschko, Maximilian, Graf, Christina, Radmilović, Nadežda, Novaković, Mirjana M., Validžić, Ivana Lj., "Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles" in Materials Science in Semiconductor Processing, 137 (2022):106196,
https://doi.org/10.1016/j.mssp.2021.106196 . .

TY  - JOUR
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Noga, Pavol
AU  - Vana, Dušan
AU  - Ronning, Carsten
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10106
AB  - Titanium-nitride (TiN) is known as a very promising plasmonic material, which offers many advantages compared to conventional metals commonly used in practical devices. Despite many improvements, TiN still suffers from high losses in the near-infrared (NIR) spectral region, making it less suitable for real-life applications. In this study, we have investigated the effects of pure silver implanted as well as silver/gold co-implanted TiN thin films on their optical properties, which we analyzed by spectroscopic ellipsometry. We demonstrate that the presence of silver and gold drastically changes both the real and imaginary part of the dielectric function. The implanted films exhibit optical losses several times lower compared to as-deposited TiN. The changes are in particular more pronounced for the samples with Au/Ag co-implantations, reaching nearly the same optical values as those of pure gold and being only slightly larger than that of silver. Thus, such an optical tuning of TiN opens new horizons and provide high potential for its implementation into plasmonic applications.
T2  - Optical Materials
T1  - Low optical losses in plasmonic TiN thin films implanted with silver and gold
VL  - 123
SP  - 111936
DO  - 10.1016/j.optmat.2021.111936
ER  - 

@article{
author = "Novaković, Mirjana M. and Popović, Maja and Noga, Pavol and Vana, Dušan and Ronning, Carsten",
year = "2022",
abstract = "Titanium-nitride (TiN) is known as a very promising plasmonic material, which offers many advantages compared to conventional metals commonly used in practical devices. Despite many improvements, TiN still suffers from high losses in the near-infrared (NIR) spectral region, making it less suitable for real-life applications. In this study, we have investigated the effects of pure silver implanted as well as silver/gold co-implanted TiN thin films on their optical properties, which we analyzed by spectroscopic ellipsometry. We demonstrate that the presence of silver and gold drastically changes both the real and imaginary part of the dielectric function. The implanted films exhibit optical losses several times lower compared to as-deposited TiN. The changes are in particular more pronounced for the samples with Au/Ag co-implantations, reaching nearly the same optical values as those of pure gold and being only slightly larger than that of silver. Thus, such an optical tuning of TiN opens new horizons and provide high potential for its implementation into plasmonic applications.",
journal = "Optical Materials",
title = "Low optical losses in plasmonic TiN thin films implanted with silver and gold",
volume = "123",
pages = "111936",
doi = "10.1016/j.optmat.2021.111936"
}

Novaković, M. M., Popović, M., Noga, P., Vana, D.,& Ronning, C.. (2022). Low optical losses in plasmonic TiN thin films implanted with silver and gold. in Optical Materials, 123, 111936.
https://doi.org/10.1016/j.optmat.2021.111936

Novaković MM, Popović M, Noga P, Vana D, Ronning C. Low optical losses in plasmonic TiN thin films implanted with silver and gold. in Optical Materials. 2022;123:111936.
doi:10.1016/j.optmat.2021.111936 .

Novaković, Mirjana M., Popović, Maja, Noga, Pavol, Vana, Dušan, Ronning, Carsten, "Low optical losses in plasmonic TiN thin films implanted with silver and gold" in Optical Materials, 123 (2022):111936,
https://doi.org/10.1016/j.optmat.2021.111936 . .

TY  - JOUR
AU  - Potočnik, Jelena
AU  - Božinović, Nevena
AU  - Novaković, Mirjana M.
AU  - Barudžija, Tanja
AU  - Nenadović, Miloš
AU  - Popović, Maja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10299
AB  - In this study, we have investigated the effect of thickness on the structural and optical properties of copper (Cu) helical nanostructures. Thin films with thicknesses of 160 nm, 280 nm, 450 nm, and 780 nm were obtained by e-beam glancing angle deposition. The morphology and the microstructure were studied by field emission scanning electron microscopy, x-ray diffraction and transmission electron microscopy, while for the optical analysis measurements spectroscopic ellipsometry was used. The results show that the deposited structures are porous with nanometer-sized crystallites preferentially oriented along (111) planes, as well as that the diameter of the helices increases with thickness. Detailed analyses of optical properties have demonstrated that the dielectric function of Cu structures is greatly influenced by the films thicknesses. With increasing thickness from 160 nm to 780 nm, the surface plasmon resonance peak was shifted from 1.31 eV to 1.05 eV, which was correlated with the growth mechanism and the size of deposited nanostructures.
T2  - Nanotechnology
T1  - Optical properties of copper helical nanostructures: the effect of thickness on the SPR peak position
VL  - 33
IS  - 34
SP  - 345710
DO  - 10.1088/1361-6528/ac705c
ER  - 

@article{
author = "Potočnik, Jelena and Božinović, Nevena and Novaković, Mirjana M. and Barudžija, Tanja and Nenadović, Miloš and Popović, Maja",
year = "2022",
abstract = "In this study, we have investigated the effect of thickness on the structural and optical properties of copper (Cu) helical nanostructures. Thin films with thicknesses of 160 nm, 280 nm, 450 nm, and 780 nm were obtained by e-beam glancing angle deposition. The morphology and the microstructure were studied by field emission scanning electron microscopy, x-ray diffraction and transmission electron microscopy, while for the optical analysis measurements spectroscopic ellipsometry was used. The results show that the deposited structures are porous with nanometer-sized crystallites preferentially oriented along (111) planes, as well as that the diameter of the helices increases with thickness. Detailed analyses of optical properties have demonstrated that the dielectric function of Cu structures is greatly influenced by the films thicknesses. With increasing thickness from 160 nm to 780 nm, the surface plasmon resonance peak was shifted from 1.31 eV to 1.05 eV, which was correlated with the growth mechanism and the size of deposited nanostructures.",
journal = "Nanotechnology",
title = "Optical properties of copper helical nanostructures: the effect of thickness on the SPR peak position",
volume = "33",
number = "34",
pages = "345710",
doi = "10.1088/1361-6528/ac705c"
}

Potočnik, J., Božinović, N., Novaković, M. M., Barudžija, T., Nenadović, M.,& Popović, M.. (2022). Optical properties of copper helical nanostructures: the effect of thickness on the SPR peak position. in Nanotechnology, 33(34), 345710.
https://doi.org/10.1088/1361-6528/ac705c

Potočnik J, Božinović N, Novaković MM, Barudžija T, Nenadović M, Popović M. Optical properties of copper helical nanostructures: the effect of thickness on the SPR peak position. in Nanotechnology. 2022;33(34):345710.
doi:10.1088/1361-6528/ac705c .

Potočnik, Jelena, Božinović, Nevena, Novaković, Mirjana M., Barudžija, Tanja, Nenadović, Miloš, Popović, Maja, "Optical properties of copper helical nanostructures: the effect of thickness on the SPR peak position" in Nanotechnology, 33, no. 34 (2022):345710,
https://doi.org/10.1088/1361-6528/ac705c . .

TY  - JOUR
AU  - Potočnik, Jelena
AU  - Božinović, Nevena
AU  - Popović, Maja
AU  - Barudžija, Tanja
AU  - Nenadović, Miloš
AU  - Novaković, Mirjana M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10366
AB  - Copper (Cu) thin films were deposited by using glancing angle deposition in the form of zigzag and square spiral nanostructures. Thin films were fabricated under different azimuthal rotations (φ = 180°, 90°, 45°, 22.5° and 11°), to the thickness of approximately 300 nm. Morphological, chemical and structural properties were investigated by field-emission scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy. For the optical characterization of the samples spectroscopic ellipsometry was used, while the electrical properties were analyzed by four-point probe method. It was found that as the azimuthal rotation decreases, deposited nanostructures become more porous with larger number of grown arms. Both, optical and electrical analyses revealed that the properties of the obtained thin films are significantly influenced by growth mechanism. By decreasing the φ parameter, the surface plasmon resonance peak was shifted from 1038.9 nm to 1676.6 nm, which can be correlated with the porosity of Cu structures. Besides, it was found that the optical and electrical properties of the thin films are also strongly dependent on the concentration of defects.
T2  - Journal of Alloys and Compounds
T1  - Fabrication of zigzag and square spiral Cu nanostructures: Influence of substrate rotation on the structural, optical and electrical properties
VL  - 922
SP  - 166211
DO  - 10.1016/j.jallcom.2022.166211
ER  - 

@article{
author = "Potočnik, Jelena and Božinović, Nevena and Popović, Maja and Barudžija, Tanja and Nenadović, Miloš and Novaković, Mirjana M.",
year = "2022",
abstract = "Copper (Cu) thin films were deposited by using glancing angle deposition in the form of zigzag and square spiral nanostructures. Thin films were fabricated under different azimuthal rotations (φ = 180°, 90°, 45°, 22.5° and 11°), to the thickness of approximately 300 nm. Morphological, chemical and structural properties were investigated by field-emission scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy. For the optical characterization of the samples spectroscopic ellipsometry was used, while the electrical properties were analyzed by four-point probe method. It was found that as the azimuthal rotation decreases, deposited nanostructures become more porous with larger number of grown arms. Both, optical and electrical analyses revealed that the properties of the obtained thin films are significantly influenced by growth mechanism. By decreasing the φ parameter, the surface plasmon resonance peak was shifted from 1038.9 nm to 1676.6 nm, which can be correlated with the porosity of Cu structures. Besides, it was found that the optical and electrical properties of the thin films are also strongly dependent on the concentration of defects.",
journal = "Journal of Alloys and Compounds",
title = "Fabrication of zigzag and square spiral Cu nanostructures: Influence of substrate rotation on the structural, optical and electrical properties",
volume = "922",
pages = "166211",
doi = "10.1016/j.jallcom.2022.166211"
}

Potočnik, J., Božinović, N., Popović, M., Barudžija, T., Nenadović, M.,& Novaković, M. M.. (2022). Fabrication of zigzag and square spiral Cu nanostructures: Influence of substrate rotation on the structural, optical and electrical properties. in Journal of Alloys and Compounds, 922, 166211.
https://doi.org/10.1016/j.jallcom.2022.166211

Potočnik J, Božinović N, Popović M, Barudžija T, Nenadović M, Novaković MM. Fabrication of zigzag and square spiral Cu nanostructures: Influence of substrate rotation on the structural, optical and electrical properties. in Journal of Alloys and Compounds. 2022;922:166211.
doi:10.1016/j.jallcom.2022.166211 .

Potočnik, Jelena, Božinović, Nevena, Popović, Maja, Barudžija, Tanja, Nenadović, Miloš, Novaković, Mirjana M., "Fabrication of zigzag and square spiral Cu nanostructures: Influence of substrate rotation on the structural, optical and electrical properties" in Journal of Alloys and Compounds, 922 (2022):166211,
https://doi.org/10.1016/j.jallcom.2022.166211 . .