Popović, Maja

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Authority KeyName Variants
orcid::0000-0002-0659-1732
  • Popović, Maja (65)
Projects
Functional, Functionalized and Advanced Nanomaterials Deutsche Forschungsgemeinschaft [436 SER 113/2]
German-Serbian DAAD bilateral collaboration [451-03-01038/2015-09118/18] Slovak Research and Development Agency [APVV-15-0049]
Synthesis, processing and applications of nanostructured multifunctional materials with defined properties Modifikacija, sinteza i analiza nanostrukturnih materijala jonskim snopovima, gama zračenjem i vakuumskim deponovanjem
Deutsche Forschungsgemeinschaft ERC advanced grant “PICOPROP” [670918]
European Regional Development Fund [ITMS:26220220179] Superconductivity, Magnetism, and Fluctuation Phenomena
Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites Directed synthesis, structure and properties of multifunctional materials
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča) Physics and Chemistry with Ion Beams
Ministry of Education, Science and Technological Development of the Republic of Serbia Ministry of Science and Environmental Protection of the Republic of Serbia [OI 141013], International Atomic Energy Agency, Vienna
Slovak Grant Agency VEGA [1/0219/16] Slovak Research and Development Agency [APVV-18-0168]
Swiss National Science Foundation [160169] Swiss National Science Foundation (PP00P2_150573)
Deutsche Forschungsgemeinschaft, French-Serbian CNRS-MSTD bilateral collaboration [23119] Deutsche Forschungsgemeinschaft [SER 113/2], French-Serbian CNRS-MSTD bilateral collaboration [23119]
European Regional Development Fund [ITMS2014+: 313011W085] German Serbian DAAD bilateral collaboration [451-03-01038/2015-09118/18]
NFFA-Europe - Nanoscience Foundries and Fine Analysis - Europe Dynamics of nonlinear physicochemical and biochemical systems with modeling and predicting of their behavior under nonequilibrium conditions
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200175 (Institute of Technical Sciences of SASA, Belgrade) Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them
info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45005/RS/ Magnetic and radionuclide labeled nanostructured materials for medical applications

Author's Bibliography

Optical properties of zigzag nickel nanostructures obtained at different deposition angles

Potočnik, Jelena; Popović, Maja

(2021)

TY  - JOUR
AU  - Potočnik, Jelena
AU  - Popović, Maja
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9994
AB  - In this study, nickel (Ni) thin films were deposited at two different angles (65o and 85o) using Glancing Angle Deposition technique, to the thicknesses of 60 – 290 nm. Structural analysis of the deposited films was performed by scanning electron microscopy and X-ray diffraction, while spectroscopic ellipsometry was used for the investigation of optical properties. Electrical resitivity of the samples was determined by four-point probe method. Structural analysis showed that the Ni films grow in a shape of zigzag nanocolumns, where the deposition angle strongly affects their porosity. As the thickness of the films increase they absorb light strongly and become less dense. Besides, samples deposited at the angle of 85o exhibit higher values of electrical resistivity as compared to the samples deposited at the angle of 65o, which can be correlated with high porosity and the growth mechanism of the deposited nanostructures.
T2  - Science of Sintering
T1  - Optical properties of zigzag nickel nanostructures obtained at different deposition angles
VL  - 53
IS  - 3
SP  - 347
EP  - 353
DO  - 10.2298/SOS2103347P
ER  - 
@article{
author = "Potočnik, Jelena and Popović, Maja",
year = "2021",
abstract = "In this study, nickel (Ni) thin films were deposited at two different angles (65o and 85o) using Glancing Angle Deposition technique, to the thicknesses of 60 – 290 nm. Structural analysis of the deposited films was performed by scanning electron microscopy and X-ray diffraction, while spectroscopic ellipsometry was used for the investigation of optical properties. Electrical resitivity of the samples was determined by four-point probe method. Structural analysis showed that the Ni films grow in a shape of zigzag nanocolumns, where the deposition angle strongly affects their porosity. As the thickness of the films increase they absorb light strongly and become less dense. Besides, samples deposited at the angle of 85o exhibit higher values of electrical resistivity as compared to the samples deposited at the angle of 65o, which can be correlated with high porosity and the growth mechanism of the deposited nanostructures.",
journal = "Science of Sintering",
title = "Optical properties of zigzag nickel nanostructures obtained at different deposition angles",
volume = "53",
number = "3",
pages = "347-353",
doi = "10.2298/SOS2103347P"
}
Potočnik, J.,& Popović, M.. (2021). Optical properties of zigzag nickel nanostructures obtained at different deposition angles. in Science of Sintering, 53(3), 347-353.
https://doi.org/10.2298/SOS2103347P
Potočnik J, Popović M. Optical properties of zigzag nickel nanostructures obtained at different deposition angles. in Science of Sintering. 2021;53(3):347-353.
doi:10.2298/SOS2103347P .
Potočnik, Jelena, Popović, Maja, "Optical properties of zigzag nickel nanostructures obtained at different deposition angles" in Science of Sintering, 53, no. 3 (2021):347-353,
https://doi.org/10.2298/SOS2103347P . .

Control of porosity and optical properties of slanted columnar Ni thin films

Potočnik, Jelena; Popović, Maja; Mitrić, Miodrag N.; Rakočević, Zlatko Lj.

(2021)

TY  - JOUR
AU  - Potočnik, Jelena
AU  - Popović, Maja
AU  - Mitrić, Miodrag N.
AU  - Rakočević, Zlatko Lj.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9753
AB  - In this work we deposited nickel thin films by Glancing Angle Deposition at two different angles (65 degrees and 85 degrees) onto glass substrates. The structure of the films, thicknesses between 50 and 200 nm, was studied by scanning electron microscopy, atomic force microscopy and X-ray diffraction, while the chemical properties were analyzed using X-ray photoelectron spectroscopy. According to the obtained results it can be seen that the deposition angle has influence on porosity, crystallinity and surface roughness. Optical properties were investigated by spectroscopic ellipsometry and electrical properties were measured by four point probe. Spectroscopic ellipsometry revealed that the refractive index and extinction coefficient varied with thickness and deposition angle, which can be correlated with changes in microstructure and porosity of Ni films. The observed variations in resistivity could be attributed to the changes in the width of the columns, as well as to the amount of oxide present in the samples.
T2  - Optical Materials
T1  - Control of porosity and optical properties of slanted columnar Ni thin films
VL  - 111
SP  - 110649
DO  - 10.1016/j.optmat.2020.110649
ER  - 
@article{
author = "Potočnik, Jelena and Popović, Maja and Mitrić, Miodrag N. and Rakočević, Zlatko Lj.",
year = "2021",
abstract = "In this work we deposited nickel thin films by Glancing Angle Deposition at two different angles (65 degrees and 85 degrees) onto glass substrates. The structure of the films, thicknesses between 50 and 200 nm, was studied by scanning electron microscopy, atomic force microscopy and X-ray diffraction, while the chemical properties were analyzed using X-ray photoelectron spectroscopy. According to the obtained results it can be seen that the deposition angle has influence on porosity, crystallinity and surface roughness. Optical properties were investigated by spectroscopic ellipsometry and electrical properties were measured by four point probe. Spectroscopic ellipsometry revealed that the refractive index and extinction coefficient varied with thickness and deposition angle, which can be correlated with changes in microstructure and porosity of Ni films. The observed variations in resistivity could be attributed to the changes in the width of the columns, as well as to the amount of oxide present in the samples.",
journal = "Optical Materials",
title = "Control of porosity and optical properties of slanted columnar Ni thin films",
volume = "111",
pages = "110649",
doi = "10.1016/j.optmat.2020.110649"
}
Potočnik, J., Popović, M., Mitrić, M. N.,& Rakočević, Z. Lj.. (2021). Control of porosity and optical properties of slanted columnar Ni thin films. in Optical Materials, 111, 110649.
https://doi.org/10.1016/j.optmat.2020.110649
Potočnik J, Popović M, Mitrić MN, Rakočević ZL. Control of porosity and optical properties of slanted columnar Ni thin films. in Optical Materials. 2021;111:110649.
doi:10.1016/j.optmat.2020.110649 .
Potočnik, Jelena, Popović, Maja, Mitrić, Miodrag N., Rakočević, Zlatko Lj., "Control of porosity and optical properties of slanted columnar Ni thin films" in Optical Materials, 111 (2021):110649,
https://doi.org/10.1016/j.optmat.2020.110649 . .
1
1
1

Response of NIH 3T3 fibroblast cells on laser-induced periodic surface structures on a 15×(Ti/Zr)/Si multilayer system

Petrović, Suzana; Peruško, Davor; Mimidis, Alexandros; Kavatzikidou, Paraskevi; Kovač, Janez; Ranella, Anthi; Novaković, Mirjana M.; Popović, Maja; Stratakis, Emmanuel

(2020)

TY  - JOUR
AU  - Petrović, Suzana
AU  - Peruško, Davor
AU  - Mimidis, Alexandros
AU  - Kavatzikidou, Paraskevi
AU  - Kovač, Janez
AU  - Ranella, Anthi
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Stratakis, Emmanuel
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9785
AB  - Ultrafast laser processing with the formation of periodic surface nanostructures on the 15×(Ti/Zr)/Si multilayers is studied in order to the improve cell response. A novel nanocomposite structure in the form of 15x(Ti/Zr)/Si multilayer thin films, with satisfying mechanical properties and moderate biocompatibility, was deposited by ion sputtering on an Si substrate. The multilayer 15×(Ti/Zr)/Si thin films were modified by femtosecond laser pulses in air to induce the following modifications: (i) mixing of components inside of the multilayer structures, (ii) the formation of an ultrathin oxide layer at the surfaces, and (iii) surface nano-texturing with the creation of laser-induced periodic surface structure (LIPSS). The focus of this study was an examination of the novel Ti/Zr multilayer thin films in order to create a surface texture with suitable composition and structure for cell integration. Using the SEM and confocal microscopies of the laser-modified Ti/Zr surfaces with seeded cell culture (NIH 3T3 fibroblasts), it was found that cell adhesion and growth depend on the surface composition and morphological patterns. These results indicated a good proliferation of cells after two and four days with some tendency of the cell orientation along the LIPSSs. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
T2  - Nanomaterials
T1  - Response of NIH 3T3 fibroblast cells on laser-induced periodic surface structures on a 15×(Ti/Zr)/Si multilayer system
VL  - 10
IS  - 12
SP  - 1
EP  - 14
DO  - 10.3390/nano10122531
ER  - 
@article{
author = "Petrović, Suzana and Peruško, Davor and Mimidis, Alexandros and Kavatzikidou, Paraskevi and Kovač, Janez and Ranella, Anthi and Novaković, Mirjana M. and Popović, Maja and Stratakis, Emmanuel",
year = "2020",
abstract = "Ultrafast laser processing with the formation of periodic surface nanostructures on the 15×(Ti/Zr)/Si multilayers is studied in order to the improve cell response. A novel nanocomposite structure in the form of 15x(Ti/Zr)/Si multilayer thin films, with satisfying mechanical properties and moderate biocompatibility, was deposited by ion sputtering on an Si substrate. The multilayer 15×(Ti/Zr)/Si thin films were modified by femtosecond laser pulses in air to induce the following modifications: (i) mixing of components inside of the multilayer structures, (ii) the formation of an ultrathin oxide layer at the surfaces, and (iii) surface nano-texturing with the creation of laser-induced periodic surface structure (LIPSS). The focus of this study was an examination of the novel Ti/Zr multilayer thin films in order to create a surface texture with suitable composition and structure for cell integration. Using the SEM and confocal microscopies of the laser-modified Ti/Zr surfaces with seeded cell culture (NIH 3T3 fibroblasts), it was found that cell adhesion and growth depend on the surface composition and morphological patterns. These results indicated a good proliferation of cells after two and four days with some tendency of the cell orientation along the LIPSSs. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.",
journal = "Nanomaterials",
title = "Response of NIH 3T3 fibroblast cells on laser-induced periodic surface structures on a 15×(Ti/Zr)/Si multilayer system",
volume = "10",
number = "12",
pages = "1-14",
doi = "10.3390/nano10122531"
}
Petrović, S., Peruško, D., Mimidis, A., Kavatzikidou, P., Kovač, J., Ranella, A., Novaković, M. M., Popović, M.,& Stratakis, E.. (2020). Response of NIH 3T3 fibroblast cells on laser-induced periodic surface structures on a 15×(Ti/Zr)/Si multilayer system. in Nanomaterials, 10(12), 1-14.
https://doi.org/10.3390/nano10122531
Petrović S, Peruško D, Mimidis A, Kavatzikidou P, Kovač J, Ranella A, Novaković MM, Popović M, Stratakis E. Response of NIH 3T3 fibroblast cells on laser-induced periodic surface structures on a 15×(Ti/Zr)/Si multilayer system. in Nanomaterials. 2020;10(12):1-14.
doi:10.3390/nano10122531 .
Petrović, Suzana, Peruško, Davor, Mimidis, Alexandros, Kavatzikidou, Paraskevi, Kovač, Janez, Ranella, Anthi, Novaković, Mirjana M., Popović, Maja, Stratakis, Emmanuel, "Response of NIH 3T3 fibroblast cells on laser-induced periodic surface structures on a 15×(Ti/Zr)/Si multilayer system" in Nanomaterials, 10, no. 12 (2020):1-14,
https://doi.org/10.3390/nano10122531 . .
1
1

Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry

Rajić, Vladimir; Simatović Stojković, Ivana; Veselinović, Ljiljana; Belošević-Čavor, Jelena; Novaković, Mirjana M.; Popović, Maja; Škapin, Srečo Davor; Mojović, Miloš; Stojadinović, Stevan; Rac, Vladislav; Častvan Janković, Ivona; Marković, Smilja

(2020)

TY  - JOUR
AU  - Rajić, Vladimir
AU  - Simatović Stojković, Ivana
AU  - Veselinović, Ljiljana
AU  - Belošević-Čavor, Jelena
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Škapin, Srečo Davor
AU  - Mojović, Miloš
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Častvan Janković, Ivona
AU  - Marković, Smilja
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9679
AB  - Eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped zinc oxide (Zn1−xFexO, x = 0, 0.05, 0.1, 0.15 and 0.20; ZnO:Fe) nanoparticles, which were tested as catalysts toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in a moderately alkaline solution. The phase composition, crystal structure, morphology, textural properties, surface chemistry, optical properties and band structure were examined to comprehend the influence of Zn2+ partial substitution with Fe3+ on the catalytic activity of ZnO:Fe. Linear sweep voltammetry showed an improved catalytic activity of ZnO:5Fe toward the ORR, compared to pure ZnO, while with increased amounts of the Fe-dopant the activity decreased. The improvement was suggested by a more positive onset potential (0.394 V vs. RHE), current density (0.231 mA cm−2 at 0.150 V vs. RHE), and faster kinetics (Tafel slope, b = 248 mV dec−1), and it may be due to the synergistic effect of (1) a sufficient amount of surface oxygen vacancies, and (2) a certain amount of plate-like particles composed of crystallites with well developed (0001) and (000) facets. Quite the contrary, the OER study showed that the introduction of Fe3+ ions into the ZnO crystal structure resulted in enhanced catalytic activity of all ZnO:Fe samples, compared to pure ZnO, probably due to the modified binding energy and an optimized band structure. With the maximal current density of 1.066 mA cm−2 at 2.216 V vs. RHE, an onset potential of 1.856 V vs. RHE, and the smallest potential difference between the OER and ORR (ΔE = 1.58 V), ZnO:10Fe may be considered a promising bifunctional catalyst toward the OER/ORR in moderately alkaline solution. This study demonstrates that the electrocatalytic activity of ZnO:Fe strongly depends on the defect chemistry and consequently the band structure. Along with providing fundamental insight into the electrocatalytic activity of ZnO:Fe, the study also indicates an optimal stoichiometry for enhanced bifunctional activity toward the OER/ORR, compared to pure ZnO.
T2  - Physical Chemistry Chemical Physics
T1  - Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry
VL  - 22
IS  - 38
SP  - 22078
EP  - 22095
DO  - 10.1039/D0CP03377D
ER  - 
@article{
author = "Rajić, Vladimir and Simatović Stojković, Ivana and Veselinović, Ljiljana and Belošević-Čavor, Jelena and Novaković, Mirjana M. and Popović, Maja and Škapin, Srečo Davor and Mojović, Miloš and Stojadinović, Stevan and Rac, Vladislav and Častvan Janković, Ivona and Marković, Smilja",
year = "2020",
abstract = "Eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped zinc oxide (Zn1−xFexO, x = 0, 0.05, 0.1, 0.15 and 0.20; ZnO:Fe) nanoparticles, which were tested as catalysts toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in a moderately alkaline solution. The phase composition, crystal structure, morphology, textural properties, surface chemistry, optical properties and band structure were examined to comprehend the influence of Zn2+ partial substitution with Fe3+ on the catalytic activity of ZnO:Fe. Linear sweep voltammetry showed an improved catalytic activity of ZnO:5Fe toward the ORR, compared to pure ZnO, while with increased amounts of the Fe-dopant the activity decreased. The improvement was suggested by a more positive onset potential (0.394 V vs. RHE), current density (0.231 mA cm−2 at 0.150 V vs. RHE), and faster kinetics (Tafel slope, b = 248 mV dec−1), and it may be due to the synergistic effect of (1) a sufficient amount of surface oxygen vacancies, and (2) a certain amount of plate-like particles composed of crystallites with well developed (0001) and (000) facets. Quite the contrary, the OER study showed that the introduction of Fe3+ ions into the ZnO crystal structure resulted in enhanced catalytic activity of all ZnO:Fe samples, compared to pure ZnO, probably due to the modified binding energy and an optimized band structure. With the maximal current density of 1.066 mA cm−2 at 2.216 V vs. RHE, an onset potential of 1.856 V vs. RHE, and the smallest potential difference between the OER and ORR (ΔE = 1.58 V), ZnO:10Fe may be considered a promising bifunctional catalyst toward the OER/ORR in moderately alkaline solution. This study demonstrates that the electrocatalytic activity of ZnO:Fe strongly depends on the defect chemistry and consequently the band structure. Along with providing fundamental insight into the electrocatalytic activity of ZnO:Fe, the study also indicates an optimal stoichiometry for enhanced bifunctional activity toward the OER/ORR, compared to pure ZnO.",
journal = "Physical Chemistry Chemical Physics",
title = "Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry",
volume = "22",
number = "38",
pages = "22078-22095",
doi = "10.1039/D0CP03377D"
}
Rajić, V., Simatović Stojković, I., Veselinović, L., Belošević-Čavor, J., Novaković, M. M., Popović, M., Škapin, S. D., Mojović, M., Stojadinović, S., Rac, V., Častvan Janković, I.,& Marković, S.. (2020). Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry. in Physical Chemistry Chemical Physics, 22(38), 22078-22095.
https://doi.org/10.1039/D0CP03377D
Rajić V, Simatović Stojković I, Veselinović L, Belošević-Čavor J, Novaković MM, Popović M, Škapin SD, Mojović M, Stojadinović S, Rac V, Častvan Janković I, Marković S. Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry. in Physical Chemistry Chemical Physics. 2020;22(38):22078-22095.
doi:10.1039/D0CP03377D .
Rajić, Vladimir, Simatović Stojković, Ivana, Veselinović, Ljiljana, Belošević-Čavor, Jelena, Novaković, Mirjana M., Popović, Maja, Škapin, Srečo Davor, Mojović, Miloš, Stojadinović, Stevan, Rac, Vladislav, Častvan Janković, Ivona, Marković, Smilja, "Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry" in Physical Chemistry Chemical Physics, 22, no. 38 (2020):22078-22095,
https://doi.org/10.1039/D0CP03377D . .
3
1
1

Formation of Au-Ag alloy nanoparticles in amorphous silicon using sequential ion implantation

Novaković, Mirjana M.; Popović, Maja; Noga, Pavol; Vaňa, Dušan; Rakočević, Zlatko Lj.

(2020)

TY  - JOUR
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Noga, Pavol
AU  - Vaňa, Dušan
AU  - Rakočević, Zlatko Lj.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8929
AB  - Au-Ag alloy nanoparticles were formed into amorphous silicon by sequential ion implantation of Au and Ag. Monocrystalline Si was amorphized at the initial moment of implantation with 1 × 1016 ions/cm2 gold ions, and then different silver fluences were applied in the range of 1 × 1016–1 × 1017 ions/cm2. After implantations the samples were investigated by means of Rutherford backscattering spectrometry and transmission electron microscopy. The nanoparticles were found to be formed at surface and sub-surface regions of the Si substrate, at depths corresponding to the maximum distribution of Au and Ag ions. The particles are crystalline in nature with sizes from 2 nm to 30 nm in diameter, increasing with silver ion fluence. Although the lattice constants of gold and silver are too close to be distinguished by measuring the characteristic interplanar spacings, imaging in scanning transmission mode confirms the formation of Au-Ag bimetallic nanoparticles, presenting a solid-solution alloy of gold and silver.
T2  - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
T1  - Formation of Au-Ag alloy nanoparticles in amorphous silicon using sequential ion implantation
VL  - 471
SP  - 33
EP  - 41
DO  - 10.1016/j.nimb.2020.03.021
ER  - 
@article{
author = "Novaković, Mirjana M. and Popović, Maja and Noga, Pavol and Vaňa, Dušan and Rakočević, Zlatko Lj.",
year = "2020",
abstract = "Au-Ag alloy nanoparticles were formed into amorphous silicon by sequential ion implantation of Au and Ag. Monocrystalline Si was amorphized at the initial moment of implantation with 1 × 1016 ions/cm2 gold ions, and then different silver fluences were applied in the range of 1 × 1016–1 × 1017 ions/cm2. After implantations the samples were investigated by means of Rutherford backscattering spectrometry and transmission electron microscopy. The nanoparticles were found to be formed at surface and sub-surface regions of the Si substrate, at depths corresponding to the maximum distribution of Au and Ag ions. The particles are crystalline in nature with sizes from 2 nm to 30 nm in diameter, increasing with silver ion fluence. Although the lattice constants of gold and silver are too close to be distinguished by measuring the characteristic interplanar spacings, imaging in scanning transmission mode confirms the formation of Au-Ag bimetallic nanoparticles, presenting a solid-solution alloy of gold and silver.",
journal = "Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms",
title = "Formation of Au-Ag alloy nanoparticles in amorphous silicon using sequential ion implantation",
volume = "471",
pages = "33-41",
doi = "10.1016/j.nimb.2020.03.021"
}
Novaković, M. M., Popović, M., Noga, P., Vaňa, D.,& Rakočević, Z. Lj.. (2020). Formation of Au-Ag alloy nanoparticles in amorphous silicon using sequential ion implantation. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 471, 33-41.
https://doi.org/10.1016/j.nimb.2020.03.021
Novaković MM, Popović M, Noga P, Vaňa D, Rakočević ZL. Formation of Au-Ag alloy nanoparticles in amorphous silicon using sequential ion implantation. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 2020;471:33-41.
doi:10.1016/j.nimb.2020.03.021 .
Novaković, Mirjana M., Popović, Maja, Noga, Pavol, Vaňa, Dušan, Rakočević, Zlatko Lj., "Formation of Au-Ag alloy nanoparticles in amorphous silicon using sequential ion implantation" in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 471 (2020):33-41,
https://doi.org/10.1016/j.nimb.2020.03.021 . .
2
1
1

Ion beam synthesis of Au-Ag alloy nanoparticles in TiN thin films

Popović, Maja; Novaković, Mirjana M.; Noga, Pavol; Vaňa, Dušan; Rakočević, Zlatko Lj.

(2020)

TY  - JOUR
AU  - Popović, Maja
AU  - Novaković, Mirjana M.
AU  - Noga, Pavol
AU  - Vaňa, Dušan
AU  - Rakočević, Zlatko Lj.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9589
AB  - Formation of Au-Ag alloy nanoparticles in TiN thin films is demonstrated through sequential implantation of Au and Ag ions. The irradiations were done with 200 keV Au ions at fluence of 1.0 × 1016 ions/cm2 and 150 keV Ag ions to the fluences in the range of 0.7–1.3 × 1017 ions/cm2. It was found that irradiations introduce around 1.5 at.% of gold and up to ~20 at.% of silver species causing also the significant sputtering of the surface. TiN surface besides the topographic undergoes chemical changes. The presence of silver and gold is confirmed by photoemission spectroscopy showing that the implanted ions did not form any kind of compound with the surrounding matrix. Electron microscopy evidenced the formation of crystalline and quasi-spherical particles with dimensions below 10 nm. Elemental analysis revealed that the obtained nanoparticles present Au-Ag alloys, with two elements mixed over the whole volume of the particles in different Au:Ag ratios. © 2020 Elsevier B.V.
T2  - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
T1  - Ion beam synthesis of Au-Ag alloy nanoparticles in TiN thin films
VL  - 475
SP  - 20
EP  - 27
DO  - 10.1016/j.nimb.2020.04.032
ER  - 
@article{
author = "Popović, Maja and Novaković, Mirjana M. and Noga, Pavol and Vaňa, Dušan and Rakočević, Zlatko Lj.",
year = "2020",
abstract = "Formation of Au-Ag alloy nanoparticles in TiN thin films is demonstrated through sequential implantation of Au and Ag ions. The irradiations were done with 200 keV Au ions at fluence of 1.0 × 1016 ions/cm2 and 150 keV Ag ions to the fluences in the range of 0.7–1.3 × 1017 ions/cm2. It was found that irradiations introduce around 1.5 at.% of gold and up to ~20 at.% of silver species causing also the significant sputtering of the surface. TiN surface besides the topographic undergoes chemical changes. The presence of silver and gold is confirmed by photoemission spectroscopy showing that the implanted ions did not form any kind of compound with the surrounding matrix. Electron microscopy evidenced the formation of crystalline and quasi-spherical particles with dimensions below 10 nm. Elemental analysis revealed that the obtained nanoparticles present Au-Ag alloys, with two elements mixed over the whole volume of the particles in different Au:Ag ratios. © 2020 Elsevier B.V.",
journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",
title = "Ion beam synthesis of Au-Ag alloy nanoparticles in TiN thin films",
volume = "475",
pages = "20-27",
doi = "10.1016/j.nimb.2020.04.032"
}
Popović, M., Novaković, M. M., Noga, P., Vaňa, D.,& Rakočević, Z. Lj.. (2020). Ion beam synthesis of Au-Ag alloy nanoparticles in TiN thin films. in Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 475, 20-27.
https://doi.org/10.1016/j.nimb.2020.04.032
Popović M, Novaković MM, Noga P, Vaňa D, Rakočević ZL. Ion beam synthesis of Au-Ag alloy nanoparticles in TiN thin films. in Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2020;475:20-27.
doi:10.1016/j.nimb.2020.04.032 .
Popović, Maja, Novaković, Mirjana M., Noga, Pavol, Vaňa, Dušan, Rakočević, Zlatko Lj., "Ion beam synthesis of Au-Ag alloy nanoparticles in TiN thin films" in Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 475 (2020):20-27,
https://doi.org/10.1016/j.nimb.2020.04.032 . .

Formation of Ag nanoparticles in Si (100) wafers by single and multiple low energy Ag ions implantation

Modrić-Šahbazović, Almedina; Novaković, Mirjana M.; Popović, Maja; Schmidt, Emanuel O.; Gazdić, Izet; Bibić, Nataša M.; Ronning, Carsten; Rakočević, Zlatko Lj.

(2019)

TY  - JOUR
AU  - Modrić-Šahbazović, Almedina
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Schmidt, Emanuel O.
AU  - Gazdić, Izet
AU  - Bibić, Nataša M.
AU  - Ronning, Carsten
AU  - Rakočević, Zlatko Lj.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8469
AB  - We investigated the structural and optical changes of Si (100) induced by single or multiple low energy silver ion irradiation with fluences up to 1016 ions/cm2. The irradiated samples were analyzed by the means of Rutherford backscattering spectrometry, X-ray photoelectron spectroscopy, transmission electron microscopy and spectroscopic ellipsometry measurements. The results revealed that after 60, 75 and multiple (75 + 60) keV ion implantation Ag atoms are preferentially situated in the near-surface region of the Si with the maximum distribution at 20, 26 and 42 nm, respectively. Spherical-like particles with diameters below 5 nm are homogenously distributed along the ion track of implanted ions. In the case of single ions implantations the Ag nanoparticles are distributed in the shallower regions of silicon, while subsequent implantation of silver with multiple ion energies results in a distribution in a wider region and again a shift of the Ag nanoparticles to larger depths of silicon substrate. As the ion fluence increases a monotonic decrease in the absorption in the ultraviolet region of the spectrum was observed, due to amorphization of the silicon. On the other hand, for the fluences in the range of 1014–1015 ions/cm2 in the long-wave regions wide absorption band appears at wavelengths between 700 nm and 1000 nm, which is due to plasmon resonance of Ag nanoparticles synthesized during implantation. The position of the resonance peak reflects not only the change in the ion fluence, but also the difference in the incident Ag ion energy. After implantation to the higher ion fluences of 1016 ions/cm2 this absorption band was shifted over 1000 nm, which is much above the known values for plasmon resonances of Ag nanoparticles. © 2019 Elsevier B.V.
T2  - Surface and Coatings Technology
T1  - Formation of Ag nanoparticles in Si (100) wafers by single and multiple low energy Ag ions implantation
VL  - 377
SP  - 124913
DO  - 10.1016/j.surfcoat.2019.124913
ER  - 
@article{
author = "Modrić-Šahbazović, Almedina and Novaković, Mirjana M. and Popović, Maja and Schmidt, Emanuel O. and Gazdić, Izet and Bibić, Nataša M. and Ronning, Carsten and Rakočević, Zlatko Lj.",
year = "2019",
abstract = "We investigated the structural and optical changes of Si (100) induced by single or multiple low energy silver ion irradiation with fluences up to 1016 ions/cm2. The irradiated samples were analyzed by the means of Rutherford backscattering spectrometry, X-ray photoelectron spectroscopy, transmission electron microscopy and spectroscopic ellipsometry measurements. The results revealed that after 60, 75 and multiple (75 + 60) keV ion implantation Ag atoms are preferentially situated in the near-surface region of the Si with the maximum distribution at 20, 26 and 42 nm, respectively. Spherical-like particles with diameters below 5 nm are homogenously distributed along the ion track of implanted ions. In the case of single ions implantations the Ag nanoparticles are distributed in the shallower regions of silicon, while subsequent implantation of silver with multiple ion energies results in a distribution in a wider region and again a shift of the Ag nanoparticles to larger depths of silicon substrate. As the ion fluence increases a monotonic decrease in the absorption in the ultraviolet region of the spectrum was observed, due to amorphization of the silicon. On the other hand, for the fluences in the range of 1014–1015 ions/cm2 in the long-wave regions wide absorption band appears at wavelengths between 700 nm and 1000 nm, which is due to plasmon resonance of Ag nanoparticles synthesized during implantation. The position of the resonance peak reflects not only the change in the ion fluence, but also the difference in the incident Ag ion energy. After implantation to the higher ion fluences of 1016 ions/cm2 this absorption band was shifted over 1000 nm, which is much above the known values for plasmon resonances of Ag nanoparticles. © 2019 Elsevier B.V.",
journal = "Surface and Coatings Technology",
title = "Formation of Ag nanoparticles in Si (100) wafers by single and multiple low energy Ag ions implantation",
volume = "377",
pages = "124913",
doi = "10.1016/j.surfcoat.2019.124913"
}
Modrić-Šahbazović, A., Novaković, M. M., Popović, M., Schmidt, E. O., Gazdić, I., Bibić, N. M., Ronning, C.,& Rakočević, Z. Lj.. (2019). Formation of Ag nanoparticles in Si (100) wafers by single and multiple low energy Ag ions implantation. in Surface and Coatings Technology, 377, 124913.
https://doi.org/10.1016/j.surfcoat.2019.124913
Modrić-Šahbazović A, Novaković MM, Popović M, Schmidt EO, Gazdić I, Bibić NM, Ronning C, Rakočević ZL. Formation of Ag nanoparticles in Si (100) wafers by single and multiple low energy Ag ions implantation. in Surface and Coatings Technology. 2019;377:124913.
doi:10.1016/j.surfcoat.2019.124913 .
Modrić-Šahbazović, Almedina, Novaković, Mirjana M., Popović, Maja, Schmidt, Emanuel O., Gazdić, Izet, Bibić, Nataša M., Ronning, Carsten, Rakočević, Zlatko Lj., "Formation of Ag nanoparticles in Si (100) wafers by single and multiple low energy Ag ions implantation" in Surface and Coatings Technology, 377 (2019):124913,
https://doi.org/10.1016/j.surfcoat.2019.124913 . .
6
7

Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping

Vujančević, Jelena; Andričević, Pavao; Bjelajac, Anđelika; Đokić, Veljko R.; Popović, Maja; Rakočević, Zlatko Lj.; Horvath, Endre; Kollar, Marton; Nafradi, Balint; Schiller, Andreas; Domanski, Konrad; Forro, Laszlo; Pavlović, Vera P.; Janaćković, Đorđe T.

(2019)

TY  - JOUR
AU  - Vujančević, Jelena
AU  - Andričević, Pavao
AU  - Bjelajac, Anđelika
AU  - Đokić, Veljko R.
AU  - Popović, Maja
AU  - Rakočević, Zlatko Lj.
AU  - Horvath, Endre
AU  - Kollar, Marton
AU  - Nafradi, Balint
AU  - Schiller, Andreas
AU  - Domanski, Konrad
AU  - Forro, Laszlo
AU  - Pavlović, Vera P.
AU  - Janaćković, Đorđe T.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8538
AB  - Highly ordered, anodically grown TiO 2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping (≤2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 ± 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO 2 /CH 3 NH 3 PbI 3 single crystals. The N-TiO 2 /perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive levels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures. © 2019
T2  - Ceramics International
T1  - Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping
VL  - 45
IS  - 8
SP  - 10013
EP  - 10020
DO  - 10.1016/j.ceramint.2019.02.045
ER  - 
@article{
author = "Vujančević, Jelena and Andričević, Pavao and Bjelajac, Anđelika and Đokić, Veljko R. and Popović, Maja and Rakočević, Zlatko Lj. and Horvath, Endre and Kollar, Marton and Nafradi, Balint and Schiller, Andreas and Domanski, Konrad and Forro, Laszlo and Pavlović, Vera P. and Janaćković, Đorđe T.",
year = "2019",
abstract = "Highly ordered, anodically grown TiO 2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping (≤2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 ± 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO 2 /CH 3 NH 3 PbI 3 single crystals. The N-TiO 2 /perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive levels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures. © 2019",
journal = "Ceramics International",
title = "Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping",
volume = "45",
number = "8",
pages = "10013-10020",
doi = "10.1016/j.ceramint.2019.02.045"
}
Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V. R., Popović, M., Rakočević, Z. Lj., Horvath, E., Kollar, M., Nafradi, B., Schiller, A., Domanski, K., Forro, L., Pavlović, V. P.,& Janaćković, Đ. T.. (2019). Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. in Ceramics International, 45(8), 10013-10020.
https://doi.org/10.1016/j.ceramint.2019.02.045
Vujančević J, Andričević P, Bjelajac A, Đokić VR, Popović M, Rakočević ZL, Horvath E, Kollar M, Nafradi B, Schiller A, Domanski K, Forro L, Pavlović VP, Janaćković ĐT. Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. in Ceramics International. 2019;45(8):10013-10020.
doi:10.1016/j.ceramint.2019.02.045 .
Vujančević, Jelena, Andričević, Pavao, Bjelajac, Anđelika, Đokić, Veljko R., Popović, Maja, Rakočević, Zlatko Lj., Horvath, Endre, Kollar, Marton, Nafradi, Balint, Schiller, Andreas, Domanski, Konrad, Forro, Laszlo, Pavlović, Vera P., Janaćković, Đorđe T., "Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping" in Ceramics International, 45, no. 8 (2019):10013-10020,
https://doi.org/10.1016/j.ceramint.2019.02.045 . .
3
2
1

Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping

Vujančević, Jelena; Andričević, Pavao; Bjelajac, Anđelika; Đokić, Veljko R.; Popović, Maja; Rakočević, Zlatko Lj.; Horvath, Endre; Kollar, Marton; Nafradi, Balint; Schiller, Andreas; Domanski, Konrad; Forro, Laszlo; Pavlović, Vera P.; Janaćković, Đorđe T.

(2019)

TY  - JOUR
AU  - Vujančević, Jelena
AU  - Andričević, Pavao
AU  - Bjelajac, Anđelika
AU  - Đokić, Veljko R.
AU  - Popović, Maja
AU  - Rakočević, Zlatko Lj.
AU  - Horvath, Endre
AU  - Kollar, Marton
AU  - Nafradi, Balint
AU  - Schiller, Andreas
AU  - Domanski, Konrad
AU  - Forro, Laszlo
AU  - Pavlović, Vera P.
AU  - Janaćković, Đorđe T.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8539
AB  - Highly ordered, anodically grown TiO 2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping (≤2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 ± 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO 2 /CH 3 NH 3 PbI 3 single crystals. The N-TiO 2 /perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive levels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures. © 2019
T2  - Ceramics International
T1  - Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping
VL  - 45
IS  - 8
SP  - 10013
EP  - 10020
DO  - 10.1016/j.ceramint.2019.02.045
ER  - 
@article{
author = "Vujančević, Jelena and Andričević, Pavao and Bjelajac, Anđelika and Đokić, Veljko R. and Popović, Maja and Rakočević, Zlatko Lj. and Horvath, Endre and Kollar, Marton and Nafradi, Balint and Schiller, Andreas and Domanski, Konrad and Forro, Laszlo and Pavlović, Vera P. and Janaćković, Đorđe T.",
year = "2019",
abstract = "Highly ordered, anodically grown TiO 2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping (≤2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 ± 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO 2 /CH 3 NH 3 PbI 3 single crystals. The N-TiO 2 /perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive levels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures. © 2019",
journal = "Ceramics International",
title = "Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping",
volume = "45",
number = "8",
pages = "10013-10020",
doi = "10.1016/j.ceramint.2019.02.045"
}
Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V. R., Popović, M., Rakočević, Z. Lj., Horvath, E., Kollar, M., Nafradi, B., Schiller, A., Domanski, K., Forro, L., Pavlović, V. P.,& Janaćković, Đ. T.. (2019). Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. in Ceramics International, 45(8), 10013-10020.
https://doi.org/10.1016/j.ceramint.2019.02.045
Vujančević J, Andričević P, Bjelajac A, Đokić VR, Popović M, Rakočević ZL, Horvath E, Kollar M, Nafradi B, Schiller A, Domanski K, Forro L, Pavlović VP, Janaćković ĐT. Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. in Ceramics International. 2019;45(8):10013-10020.
doi:10.1016/j.ceramint.2019.02.045 .
Vujančević, Jelena, Andričević, Pavao, Bjelajac, Anđelika, Đokić, Veljko R., Popović, Maja, Rakočević, Zlatko Lj., Horvath, Endre, Kollar, Marton, Nafradi, Balint, Schiller, Andreas, Domanski, Konrad, Forro, Laszlo, Pavlović, Vera P., Janaćković, Đorđe T., "Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping" in Ceramics International, 45, no. 8 (2019):10013-10020,
https://doi.org/10.1016/j.ceramint.2019.02.045 . .
3
2
1

Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder

Jugović, Dragana; Milović, Miloš; Popović, Maja; Kusigerski, Vladan; Škapin, Srečo Davor; Rakočević, Zlatko Lj.; Mitrić, Miodrag

(2019)

TY  - JOUR
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Popović, Maja
AU  - Kusigerski, Vladan
AU  - Škapin, Srečo Davor
AU  - Rakočević, Zlatko Lj.
AU  - Mitrić, Miodrag
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0925838818336375
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7897
AB  - The main goal of this research has been to investigate for the first time the effects of fluorination on the crystal structure, magnetic, and electrochemical properties of the P2-type NaxCoO2 powder. Sodium cobalt oxide with a P2-type structure is synthesized by a modified solid-state reaction consisting of alternating processes of rapid heating up to 750 °C and rapid cooling to the room temperature. The obtained powder is fluorinated using a gas-solid reaction with NH4HF2 as fluorinating agent. Fluorination causes a decrease of sodium content in the parent phase with the concurrent formation of the minor phases of Na2CO3 and NaF. The structure of NaxCoO2 in both powders is refined in P63/mmc space group. The results of the Rietveld refinement combined with the findings from the XPS measurements confirm the Na0.76CoO2 and Na0.44CoO1.96F0.04 stoichiometries for the pristine and fluorinated powders, respectively, which indicates that 4 at.% of fluorine ions per formula unit are incorporated in the structure. Preliminary electrochemical investigations have revealed an improved charge/discharge performance. The influence of fluorination on morphology and magnetic properties has also been examined. © 2018 Elsevier B.V.
T2  - Journal of Alloys and Compounds
T1  - Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder
VL  - 774
SP  - 30
EP  - 37
DO  - 10.1016/j.jallcom.2018.09.372
ER  - 
@article{
author = "Jugović, Dragana and Milović, Miloš and Popović, Maja and Kusigerski, Vladan and Škapin, Srečo Davor and Rakočević, Zlatko Lj. and Mitrić, Miodrag",
year = "2019",
abstract = "The main goal of this research has been to investigate for the first time the effects of fluorination on the crystal structure, magnetic, and electrochemical properties of the P2-type NaxCoO2 powder. Sodium cobalt oxide with a P2-type structure is synthesized by a modified solid-state reaction consisting of alternating processes of rapid heating up to 750 °C and rapid cooling to the room temperature. The obtained powder is fluorinated using a gas-solid reaction with NH4HF2 as fluorinating agent. Fluorination causes a decrease of sodium content in the parent phase with the concurrent formation of the minor phases of Na2CO3 and NaF. The structure of NaxCoO2 in both powders is refined in P63/mmc space group. The results of the Rietveld refinement combined with the findings from the XPS measurements confirm the Na0.76CoO2 and Na0.44CoO1.96F0.04 stoichiometries for the pristine and fluorinated powders, respectively, which indicates that 4 at.% of fluorine ions per formula unit are incorporated in the structure. Preliminary electrochemical investigations have revealed an improved charge/discharge performance. The influence of fluorination on morphology and magnetic properties has also been examined. © 2018 Elsevier B.V.",
journal = "Journal of Alloys and Compounds",
title = "Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder",
volume = "774",
pages = "30-37",
doi = "10.1016/j.jallcom.2018.09.372"
}
Jugović, D., Milović, M., Popović, M., Kusigerski, V., Škapin, S. D., Rakočević, Z. Lj.,& Mitrić, M.. (2019). Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder. in Journal of Alloys and Compounds, 774, 30-37.
https://doi.org/10.1016/j.jallcom.2018.09.372
Jugović D, Milović M, Popović M, Kusigerski V, Škapin SD, Rakočević ZL, Mitrić M. Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder. in Journal of Alloys and Compounds. 2019;774:30-37.
doi:10.1016/j.jallcom.2018.09.372 .
Jugović, Dragana, Milović, Miloš, Popović, Maja, Kusigerski, Vladan, Škapin, Srečo Davor, Rakočević, Zlatko Lj., Mitrić, Miodrag, "Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder" in Journal of Alloys and Compounds, 774 (2019):30-37,
https://doi.org/10.1016/j.jallcom.2018.09.372 . .
9
10
9

Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation

Popović, Maja; Novaković, Mirjana M.; Noga, Pavol; Vaňa, Dušan; Rakočević, Zlatko Lj.

(2019)

TY  - JOUR
AU  - Popović, Maja
AU  - Novaković, Mirjana M.
AU  - Noga, Pavol
AU  - Vaňa, Dušan
AU  - Rakočević, Zlatko Lj.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8111
AB  - In this study, we demonstrated the formation of a new type of AuAg@Ag nanostructure in titanium nitride (TiN) thin films using sequential implantation of Au and Ag ions. The TiN films deposited by DC reactive sputtering were sequentially implanted with 200 keV gold ions at fluences of 0.5 × 10 16 and 1 × 10 16 ions/cm 2 and 150 keV silver ions at fluences of 1 × 10 16 , 2 × 10 16 , 3 × 10 16 , and 4 × 10 16 ions/cm 2 . Formation of spherical-like particles with dimensions below 10 nm, homogeneously distributed along the ion track of implanted ions is verified by high resolution transmission electron microscopy. Specific nanostructure containing Au–Ag alloy in the center of the particle and only silver on the periphery was found in the TiN sample sequentially implanted with 1.0 × 10 16 ions/cm 2 of Au and 4 × 10 16 ions/cm 2 of Ag using high angle annular dark field scanning electron microscopy together with elemental mapping analysis. On the other hand, for the sample implanted with 0.5 × 10 16 ions/cm 2 of Au and 4 × 10 16 ions/cm 2 of Ag only formation of Au–Ag alloy was observed. A mechanism for the formation of a new type core/shell nanostructure in ion implanted TiN thin films is proposed. By varying the implantation fluence of the gold and silver ions properly, the optimized experimental parameters for creation of a specific AuAg@Ag core/shell nanoparticles were achieved. © 2019 Elsevier B.V.
T2  - Applied Surface Science
T1  - Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation
VL  - 481
SP  - 1418
EP  - 1424
DO  - 10.1016/j.apsusc.2019.03.243
ER  - 
@article{
author = "Popović, Maja and Novaković, Mirjana M. and Noga, Pavol and Vaňa, Dušan and Rakočević, Zlatko Lj.",
year = "2019",
abstract = "In this study, we demonstrated the formation of a new type of AuAg@Ag nanostructure in titanium nitride (TiN) thin films using sequential implantation of Au and Ag ions. The TiN films deposited by DC reactive sputtering were sequentially implanted with 200 keV gold ions at fluences of 0.5 × 10 16 and 1 × 10 16 ions/cm 2 and 150 keV silver ions at fluences of 1 × 10 16 , 2 × 10 16 , 3 × 10 16 , and 4 × 10 16 ions/cm 2 . Formation of spherical-like particles with dimensions below 10 nm, homogeneously distributed along the ion track of implanted ions is verified by high resolution transmission electron microscopy. Specific nanostructure containing Au–Ag alloy in the center of the particle and only silver on the periphery was found in the TiN sample sequentially implanted with 1.0 × 10 16 ions/cm 2 of Au and 4 × 10 16 ions/cm 2 of Ag using high angle annular dark field scanning electron microscopy together with elemental mapping analysis. On the other hand, for the sample implanted with 0.5 × 10 16 ions/cm 2 of Au and 4 × 10 16 ions/cm 2 of Ag only formation of Au–Ag alloy was observed. A mechanism for the formation of a new type core/shell nanostructure in ion implanted TiN thin films is proposed. By varying the implantation fluence of the gold and silver ions properly, the optimized experimental parameters for creation of a specific AuAg@Ag core/shell nanoparticles were achieved. © 2019 Elsevier B.V.",
journal = "Applied Surface Science",
title = "Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation",
volume = "481",
pages = "1418-1424",
doi = "10.1016/j.apsusc.2019.03.243"
}
Popović, M., Novaković, M. M., Noga, P., Vaňa, D.,& Rakočević, Z. Lj.. (2019). Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation. in Applied Surface Science, 481, 1418-1424.
https://doi.org/10.1016/j.apsusc.2019.03.243
Popović M, Novaković MM, Noga P, Vaňa D, Rakočević ZL. Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation. in Applied Surface Science. 2019;481:1418-1424.
doi:10.1016/j.apsusc.2019.03.243 .
Popović, Maja, Novaković, Mirjana M., Noga, Pavol, Vaňa, Dušan, Rakočević, Zlatko Lj., "Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation" in Applied Surface Science, 481 (2019):1418-1424,
https://doi.org/10.1016/j.apsusc.2019.03.243 . .
6
5

Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation

Popović, Maja; Novaković, Mirjana M.; Noga, Pavol; Vaňa, Dušan; Rakočević, Zlatko Lj.

(2019)

TY  - JOUR
AU  - Popović, Maja
AU  - Novaković, Mirjana M.
AU  - Noga, Pavol
AU  - Vaňa, Dušan
AU  - Rakočević, Zlatko Lj.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8123
AB  - In this study, we demonstrated the formation of a new type of AuAg@Ag nanostructure in titanium nitride (TiN) thin films using sequential implantation of Au and Ag ions. The TiN films deposited by DC reactive sputtering were sequentially implanted with 200 keV gold ions at fluences of 0.5 × 10 16 and 1 × 10 16 ions/cm 2 and 150 keV silver ions at fluences of 1 × 10 16 , 2 × 10 16 , 3 × 10 16 , and 4 × 10 16 ions/cm 2 . Formation of spherical-like particles with dimensions below 10 nm, homogeneously distributed along the ion track of implanted ions is verified by high resolution transmission electron microscopy. Specific nanostructure containing Au–Ag alloy in the center of the particle and only silver on the periphery was found in the TiN sample sequentially implanted with 1.0 × 10 16 ions/cm 2 of Au and 4 × 10 16 ions/cm 2 of Ag using high angle annular dark field scanning electron microscopy together with elemental mapping analysis. On the other hand, for the sample implanted with 0.5 × 10 16 ions/cm 2 of Au and 4 × 10 16 ions/cm 2 of Ag only formation of Au–Ag alloy was observed. A mechanism for the formation of a new type core/shell nanostructure in ion implanted TiN thin films is proposed. By varying the implantation fluence of the gold and silver ions properly, the optimized experimental parameters for creation of a specific AuAg@Ag core/shell nanoparticles were achieved. © 2019 Elsevier B.V.
T2  - Applied Surface Science
T1  - Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation
VL  - 481
SP  - 1418
EP  - 1424
DO  - 10.1016/j.apsusc.2019.03.243
ER  - 
@article{
author = "Popović, Maja and Novaković, Mirjana M. and Noga, Pavol and Vaňa, Dušan and Rakočević, Zlatko Lj.",
year = "2019",
abstract = "In this study, we demonstrated the formation of a new type of AuAg@Ag nanostructure in titanium nitride (TiN) thin films using sequential implantation of Au and Ag ions. The TiN films deposited by DC reactive sputtering were sequentially implanted with 200 keV gold ions at fluences of 0.5 × 10 16 and 1 × 10 16 ions/cm 2 and 150 keV silver ions at fluences of 1 × 10 16 , 2 × 10 16 , 3 × 10 16 , and 4 × 10 16 ions/cm 2 . Formation of spherical-like particles with dimensions below 10 nm, homogeneously distributed along the ion track of implanted ions is verified by high resolution transmission electron microscopy. Specific nanostructure containing Au–Ag alloy in the center of the particle and only silver on the periphery was found in the TiN sample sequentially implanted with 1.0 × 10 16 ions/cm 2 of Au and 4 × 10 16 ions/cm 2 of Ag using high angle annular dark field scanning electron microscopy together with elemental mapping analysis. On the other hand, for the sample implanted with 0.5 × 10 16 ions/cm 2 of Au and 4 × 10 16 ions/cm 2 of Ag only formation of Au–Ag alloy was observed. A mechanism for the formation of a new type core/shell nanostructure in ion implanted TiN thin films is proposed. By varying the implantation fluence of the gold and silver ions properly, the optimized experimental parameters for creation of a specific AuAg@Ag core/shell nanoparticles were achieved. © 2019 Elsevier B.V.",
journal = "Applied Surface Science",
title = "Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation",
volume = "481",
pages = "1418-1424",
doi = "10.1016/j.apsusc.2019.03.243"
}
Popović, M., Novaković, M. M., Noga, P., Vaňa, D.,& Rakočević, Z. Lj.. (2019). Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation. in Applied Surface Science, 481, 1418-1424.
https://doi.org/10.1016/j.apsusc.2019.03.243
Popović M, Novaković MM, Noga P, Vaňa D, Rakočević ZL. Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation. in Applied Surface Science. 2019;481:1418-1424.
doi:10.1016/j.apsusc.2019.03.243 .
Popović, Maja, Novaković, Mirjana M., Noga, Pavol, Vaňa, Dušan, Rakočević, Zlatko Lj., "Synthesis of AuAg@Ag core/shell bimetallic nanoparticles in titanium nitride thin films by sequential ion implantation" in Applied Surface Science, 481 (2019):1418-1424,
https://doi.org/10.1016/j.apsusc.2019.03.243 . .
6

Tailoring the structural and magnetic properties of Ni zigzag nanostructures using different deposition angles

Potočnik, Jelena; Popović, Maja; Jokić, Bojan M.; Rakočević, Zlatko Lj.

(2019)

TY  - JOUR
AU  - Potočnik, Jelena
AU  - Popović, Maja
AU  - Jokić, Bojan M.
AU  - Rakočević, Zlatko Lj.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8385
AB  - In this work we investigated the influence of different deposition angles on the structural and magnetic properties of nickel thin films obtained by Glancing Angle Deposition. The films were deposited onto glass substrates at the angles of 65° and 85°. The structure of the films was studied by scanning electron microscopy, atomic force microscopy and X-ray diffraction, while the magnetic properties were analyzed using magneto-optical Kerr effect microscopy (MOKE). It was found that the variation in the deposition angle has a great influence on the porosity, crystallinity and surface roughness of the Ni films. The obtained changes in microstructure were correlated with the variation in the magnetic properties. MOKE measurements revealed that the thinner films, deposited at the angle of 85°, have a 2.5 times higher coercivity in comparison with the films deposited at the lower angle, which can be ascribed to their higher porosity. © 2019 Elsevier Ltd
T2  - Materials Research Bulletin
T1  - Tailoring the structural and magnetic properties of Ni zigzag nanostructures using different deposition angles
VL  - 119
SP  - 110540
DO  - 10.1016/j.materresbull.2019.110540
ER  - 
@article{
author = "Potočnik, Jelena and Popović, Maja and Jokić, Bojan M. and Rakočević, Zlatko Lj.",
year = "2019",
abstract = "In this work we investigated the influence of different deposition angles on the structural and magnetic properties of nickel thin films obtained by Glancing Angle Deposition. The films were deposited onto glass substrates at the angles of 65° and 85°. The structure of the films was studied by scanning electron microscopy, atomic force microscopy and X-ray diffraction, while the magnetic properties were analyzed using magneto-optical Kerr effect microscopy (MOKE). It was found that the variation in the deposition angle has a great influence on the porosity, crystallinity and surface roughness of the Ni films. The obtained changes in microstructure were correlated with the variation in the magnetic properties. MOKE measurements revealed that the thinner films, deposited at the angle of 85°, have a 2.5 times higher coercivity in comparison with the films deposited at the lower angle, which can be ascribed to their higher porosity. © 2019 Elsevier Ltd",
journal = "Materials Research Bulletin",
title = "Tailoring the structural and magnetic properties of Ni zigzag nanostructures using different deposition angles",
volume = "119",
pages = "110540",
doi = "10.1016/j.materresbull.2019.110540"
}
Potočnik, J., Popović, M., Jokić, B. M.,& Rakočević, Z. Lj.. (2019). Tailoring the structural and magnetic properties of Ni zigzag nanostructures using different deposition angles. in Materials Research Bulletin, 119, 110540.
https://doi.org/10.1016/j.materresbull.2019.110540
Potočnik J, Popović M, Jokić BM, Rakočević ZL. Tailoring the structural and magnetic properties of Ni zigzag nanostructures using different deposition angles. in Materials Research Bulletin. 2019;119:110540.
doi:10.1016/j.materresbull.2019.110540 .
Potočnik, Jelena, Popović, Maja, Jokić, Bojan M., Rakočević, Zlatko Lj., "Tailoring the structural and magnetic properties of Ni zigzag nanostructures using different deposition angles" in Materials Research Bulletin, 119 (2019):110540,
https://doi.org/10.1016/j.materresbull.2019.110540 . .
1
1
1

Doping of TiO2 nanotubes with nitrogen by annealing in ammonia for visible light activation: Influence of pre- and post-annealing in air

Bjelajac, Anđelika; Petrović, Rada; Popović, Maja; Rakočević, Zlatko Lj.; Socol, Gabriel; Mihailescu, Ion N.; Janaćković, Đorđe T.

(2019)

TY  - JOUR
AU  - Bjelajac, Anđelika
AU  - Petrović, Rada
AU  - Popović, Maja
AU  - Rakočević, Zlatko Lj.
AU  - Socol, Gabriel
AU  - Mihailescu, Ion N.
AU  - Janaćković, Đorđe T.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8589
AB  - The ∼60 nm wide and ∼2 μm long TiO2 nanotubes were obtained by anodization of Ti films sputtered on F-doped tin oxide glass. For N-doping the samples were annealed in ammonia atmosphere. The effect of pre- and post-annealing in air on the nature and amount of incorporated N was studied by X-ray photoelectron spectroscopy. By measuring the absorption spectra of the obtained samples and interpreting the corresponding Tauc plots it was shown that the sample annealed just in ammonia showed the highest visible light absorption even after sputtering cleaning and a decrease of N amount from 3.8% to 1%. Pre and/or post annealing in air led to smaller amount of incorporated N, that caused less pronounced absorption enhancement and smaller band gap narrowing compared to the sample annealed only in ammonia. By fitting of N 1 s line, the contribution that was assigned to substitutional N was detected only in the samples that did not sustained post-annealing. The study showed that post-annealing in air might lead to partial conversion of N atoms in TiO2 to oxidized nitrogen species that are easily removed with sputtering. It is also possible that substitutional nitrogen was suppressed by oxygen from air to move to interstitial site. Weakly bonded NOx surface species, which are cleaned away by sputtering, can be removed by post-annealing in air. Those surface species could act as sensitizers and when their amounts are reduced, the core absorption properties, as a result of interstitial incorporation of N in TiO2 structure, were revealed. Much lower visible light sensitization was achieved in the case of pre-annealed sample in comparison to sample without pre-annealing, regardless the same quantity and type of incorporated nitrogen.
T2  - Thin Solid Films
T1  - Doping of TiO2 nanotubes with nitrogen by annealing in ammonia for visible light activation: Influence of pre- and post-annealing in air
VL  - 692
SP  - 137598
DO  - 10.1016/j.tsf.2019.137598
ER  - 
@article{
author = "Bjelajac, Anđelika and Petrović, Rada and Popović, Maja and Rakočević, Zlatko Lj. and Socol, Gabriel and Mihailescu, Ion N. and Janaćković, Đorđe T.",
year = "2019",
abstract = "The ∼60 nm wide and ∼2 μm long TiO2 nanotubes were obtained by anodization of Ti films sputtered on F-doped tin oxide glass. For N-doping the samples were annealed in ammonia atmosphere. The effect of pre- and post-annealing in air on the nature and amount of incorporated N was studied by X-ray photoelectron spectroscopy. By measuring the absorption spectra of the obtained samples and interpreting the corresponding Tauc plots it was shown that the sample annealed just in ammonia showed the highest visible light absorption even after sputtering cleaning and a decrease of N amount from 3.8% to 1%. Pre and/or post annealing in air led to smaller amount of incorporated N, that caused less pronounced absorption enhancement and smaller band gap narrowing compared to the sample annealed only in ammonia. By fitting of N 1 s line, the contribution that was assigned to substitutional N was detected only in the samples that did not sustained post-annealing. The study showed that post-annealing in air might lead to partial conversion of N atoms in TiO2 to oxidized nitrogen species that are easily removed with sputtering. It is also possible that substitutional nitrogen was suppressed by oxygen from air to move to interstitial site. Weakly bonded NOx surface species, which are cleaned away by sputtering, can be removed by post-annealing in air. Those surface species could act as sensitizers and when their amounts are reduced, the core absorption properties, as a result of interstitial incorporation of N in TiO2 structure, were revealed. Much lower visible light sensitization was achieved in the case of pre-annealed sample in comparison to sample without pre-annealing, regardless the same quantity and type of incorporated nitrogen.",
journal = "Thin Solid Films",
title = "Doping of TiO2 nanotubes with nitrogen by annealing in ammonia for visible light activation: Influence of pre- and post-annealing in air",
volume = "692",
pages = "137598",
doi = "10.1016/j.tsf.2019.137598"
}
Bjelajac, A., Petrović, R., Popović, M., Rakočević, Z. Lj., Socol, G., Mihailescu, I. N.,& Janaćković, Đ. T.. (2019). Doping of TiO2 nanotubes with nitrogen by annealing in ammonia for visible light activation: Influence of pre- and post-annealing in air. in Thin Solid Films, 692, 137598.
https://doi.org/10.1016/j.tsf.2019.137598
Bjelajac A, Petrović R, Popović M, Rakočević ZL, Socol G, Mihailescu IN, Janaćković ĐT. Doping of TiO2 nanotubes with nitrogen by annealing in ammonia for visible light activation: Influence of pre- and post-annealing in air. in Thin Solid Films. 2019;692:137598.
doi:10.1016/j.tsf.2019.137598 .
Bjelajac, Anđelika, Petrović, Rada, Popović, Maja, Rakočević, Zlatko Lj., Socol, Gabriel, Mihailescu, Ion N., Janaćković, Đorđe T., "Doping of TiO2 nanotubes with nitrogen by annealing in ammonia for visible light activation: Influence of pre- and post-annealing in air" in Thin Solid Films, 692 (2019):137598,
https://doi.org/10.1016/j.tsf.2019.137598 . .
9
9
8

Xenon-ion irradiation of Co/Si bilayers: Magnetic and structural properties

Novaković, Mirjana M.; Popović, Maja; Zhang, Kun; Čubrović, Vladimir; Bibić, Nataša M.; Rakočević, Zlatko Lj.

(2018)

TY  - JOUR
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Zhang, Kun
AU  - Čubrović, Vladimir
AU  - Bibić, Nataša M.
AU  - Rakočević, Zlatko Lj.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7685
AB  - Evolution of the structure of cobalt-silicon films during Xe ions irradiation has been studied and the same is correlated with magnetic properties. The polycrystalline cobalt films were deposited by electron beam evaporation method to a thickness of 50 nm on crystalline silicon (c-Si) and silicon with pre-amorphized surface (a-Si). After deposition the layers were irradiated with 400 keV Xe ions to the fluences in the range of 2-30 x 10(15) ions/cm(2). Structural analysis was done by means of transmission electron microscopy, atomic force microscopy (AFM) and X-ray diffraction (XRD), while the magnetic properties were analyzed by using magneto-optical Kerr effect (MOKE) technique. For the both types of substrate the AFM and XRD results show that after Xe ions irradiation the layers become more rough and the grain size of the crystallites increases; the effects being more evidenced for all fluences for the layers deposited on pre-amorphized Si. The MOKE measurements provided the in-plane azimuthal angular dependence of the hysteresis loops and the change of magnetization with the structural parameters. Although the coercive field is influenced by the surface roughness, in the case of c-Si substrate we found it is much more determined by the size of the crystallites. Additionally, independently on the substrate used the magnetic anisotropy in the Co films disappeared as the Xe ion fluence increased, indicating that the changes of magnetization in both systems occur for similar reasons. (C) 2018 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Xenon-ion irradiation of Co/Si bilayers: Magnetic and structural properties
VL  - 447
SP  - 117
EP  - 124
DO  - 10.1016/j.apsusc.2018.03.215
ER  - 
@article{
author = "Novaković, Mirjana M. and Popović, Maja and Zhang, Kun and Čubrović, Vladimir and Bibić, Nataša M. and Rakočević, Zlatko Lj.",
year = "2018",
abstract = "Evolution of the structure of cobalt-silicon films during Xe ions irradiation has been studied and the same is correlated with magnetic properties. The polycrystalline cobalt films were deposited by electron beam evaporation method to a thickness of 50 nm on crystalline silicon (c-Si) and silicon with pre-amorphized surface (a-Si). After deposition the layers were irradiated with 400 keV Xe ions to the fluences in the range of 2-30 x 10(15) ions/cm(2). Structural analysis was done by means of transmission electron microscopy, atomic force microscopy (AFM) and X-ray diffraction (XRD), while the magnetic properties were analyzed by using magneto-optical Kerr effect (MOKE) technique. For the both types of substrate the AFM and XRD results show that after Xe ions irradiation the layers become more rough and the grain size of the crystallites increases; the effects being more evidenced for all fluences for the layers deposited on pre-amorphized Si. The MOKE measurements provided the in-plane azimuthal angular dependence of the hysteresis loops and the change of magnetization with the structural parameters. Although the coercive field is influenced by the surface roughness, in the case of c-Si substrate we found it is much more determined by the size of the crystallites. Additionally, independently on the substrate used the magnetic anisotropy in the Co films disappeared as the Xe ion fluence increased, indicating that the changes of magnetization in both systems occur for similar reasons. (C) 2018 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Xenon-ion irradiation of Co/Si bilayers: Magnetic and structural properties",
volume = "447",
pages = "117-124",
doi = "10.1016/j.apsusc.2018.03.215"
}
Novaković, M. M., Popović, M., Zhang, K., Čubrović, V., Bibić, N. M.,& Rakočević, Z. Lj.. (2018). Xenon-ion irradiation of Co/Si bilayers: Magnetic and structural properties. in Applied Surface Science, 447, 117-124.
https://doi.org/10.1016/j.apsusc.2018.03.215
Novaković MM, Popović M, Zhang K, Čubrović V, Bibić NM, Rakočević ZL. Xenon-ion irradiation of Co/Si bilayers: Magnetic and structural properties. in Applied Surface Science. 2018;447:117-124.
doi:10.1016/j.apsusc.2018.03.215 .
Novaković, Mirjana M., Popović, Maja, Zhang, Kun, Čubrović, Vladimir, Bibić, Nataša M., Rakočević, Zlatko Lj., "Xenon-ion irradiation of Co/Si bilayers: Magnetic and structural properties" in Applied Surface Science, 447 (2018):117-124,
https://doi.org/10.1016/j.apsusc.2018.03.215 . .

Correlation between damage evolution, structural and optical properties of Xe implanted CrN thin films

Popović, Maja; Novaković, Mirjana M.; Zhang, Kun; Mitrić, Miodrag; Bibić, Nataša M.; Rakočević, Zlatko Lj.

(2018)

TY  - JOUR
AU  - Popović, Maja
AU  - Novaković, Mirjana M.
AU  - Zhang, Kun
AU  - Mitrić, Miodrag
AU  - Bibić, Nataša M.
AU  - Rakočević, Zlatko Lj.
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=1820-61311803199P
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7905
AB  - Polycrystalline CrN thin films were irradiated with Xe ions. The irradiation-induced modifications on structural and optical properties of the films were investigated. The CrN films were deposited on Si(100) wafers with the thickness of 280 nm, by using DC reactive sputtering. After deposition, the films were implanted at room temperature with 400 keV Xe ions with the fluences of 5-20×1015 ions/cm2. The films were then annealed at 700 °C in vacuum for 2 h. The combination of Rutherford backscattering spectrometry (RBS), X-ray diffraction (XRD) and transmission electron microscopy (TEM) was used for structural analyses, while changes in optical properties were monitored by spectroscopic ellipsometry. We also measured the electrical resistivity of the samples using a four point probe method. RBS analysis reveals that the concentration of Xe in the layers increases with ion fluence reaching the value of around 1.5 at.% for the highest ion dose, at a depth of 73 nm. XRD patterns show that the irradiation results in the decrease of the lattice constant in the range of 0.4160-0.4124 nm. Irradiation also results in the splitting of 200 line indicating the tetragonal distortion of CrN lattice. TEM studies demonstrate that after irradiation the columnar microstructure is partially destroyed within ∼90 nm, introducing a large amount of damage in the CrN layers. Spectroscopic ellipsometry analysis shows that the optical band gap of CrN progressively reduces from 3.47 eV to 2.51 eV with the rise in ion fluence up to 20 1015 ions/cm2. Four point probe measurements of the films indicated that as the Xe ion fluence increases, the electrical resistivity rises from 770 to 1607μ cm. After post-implantation annealing crystalline grains become larger and lattice distortion disappears, which influences optical band gap values and electrical resistivity of CrN. © 2018 University of Novi Sad Faculty of Technology. All rights reserved.
T2  - Processing and Application of Ceramics
T1  - Correlation between damage evolution, structural and optical properties of Xe implanted CrN thin films
VL  - 12
IS  - 3
SP  - 199
EP  - 208
DO  - 10.2298/PAC1803199P
ER  - 
@article{
author = "Popović, Maja and Novaković, Mirjana M. and Zhang, Kun and Mitrić, Miodrag and Bibić, Nataša M. and Rakočević, Zlatko Lj.",
year = "2018",
abstract = "Polycrystalline CrN thin films were irradiated with Xe ions. The irradiation-induced modifications on structural and optical properties of the films were investigated. The CrN films were deposited on Si(100) wafers with the thickness of 280 nm, by using DC reactive sputtering. After deposition, the films were implanted at room temperature with 400 keV Xe ions with the fluences of 5-20×1015 ions/cm2. The films were then annealed at 700 °C in vacuum for 2 h. The combination of Rutherford backscattering spectrometry (RBS), X-ray diffraction (XRD) and transmission electron microscopy (TEM) was used for structural analyses, while changes in optical properties were monitored by spectroscopic ellipsometry. We also measured the electrical resistivity of the samples using a four point probe method. RBS analysis reveals that the concentration of Xe in the layers increases with ion fluence reaching the value of around 1.5 at.% for the highest ion dose, at a depth of 73 nm. XRD patterns show that the irradiation results in the decrease of the lattice constant in the range of 0.4160-0.4124 nm. Irradiation also results in the splitting of 200 line indicating the tetragonal distortion of CrN lattice. TEM studies demonstrate that after irradiation the columnar microstructure is partially destroyed within ∼90 nm, introducing a large amount of damage in the CrN layers. Spectroscopic ellipsometry analysis shows that the optical band gap of CrN progressively reduces from 3.47 eV to 2.51 eV with the rise in ion fluence up to 20 1015 ions/cm2. Four point probe measurements of the films indicated that as the Xe ion fluence increases, the electrical resistivity rises from 770 to 1607μ cm. After post-implantation annealing crystalline grains become larger and lattice distortion disappears, which influences optical band gap values and electrical resistivity of CrN. © 2018 University of Novi Sad Faculty of Technology. All rights reserved.",
journal = "Processing and Application of Ceramics",
title = "Correlation between damage evolution, structural and optical properties of Xe implanted CrN thin films",
volume = "12",
number = "3",
pages = "199-208",
doi = "10.2298/PAC1803199P"
}
Popović, M., Novaković, M. M., Zhang, K., Mitrić, M., Bibić, N. M.,& Rakočević, Z. Lj.. (2018). Correlation between damage evolution, structural and optical properties of Xe implanted CrN thin films. in Processing and Application of Ceramics, 12(3), 199-208.
https://doi.org/10.2298/PAC1803199P
Popović M, Novaković MM, Zhang K, Mitrić M, Bibić NM, Rakočević ZL. Correlation between damage evolution, structural and optical properties of Xe implanted CrN thin films. in Processing and Application of Ceramics. 2018;12(3):199-208.
doi:10.2298/PAC1803199P .
Popović, Maja, Novaković, Mirjana M., Zhang, Kun, Mitrić, Miodrag, Bibić, Nataša M., Rakočević, Zlatko Lj., "Correlation between damage evolution, structural and optical properties of Xe implanted CrN thin films" in Processing and Application of Ceramics, 12, no. 3 (2018):199-208,
https://doi.org/10.2298/PAC1803199P . .

Formation of Ag Nanoparticles in CrN by Using Ag Ion Implantation and Thermal Annealing

Novaković, Mirjana M.; Popović, Maja; Schmidt, Emanuel O.; Schoppe, Philipp; Mitrić, Miodrag; Bibić, Nataša M.; Ronning, Carsten; Rakočević, Zlatko Lj.

(Belgrade : Serbian Academy of Sciences and Arts, 2018)

TY  - CONF
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Schmidt, Emanuel O.
AU  - Schoppe, Philipp
AU  - Mitrić, Miodrag
AU  - Bibić, Nataša M.
AU  - Ronning, Carsten
AU  - Rakočević, Zlatko Lj.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8733
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
T1  - Formation of Ag Nanoparticles in CrN by Using Ag Ion Implantation and Thermal Annealing
SP  - 104
EP  - 106
ER  - 
@conference{
author = "Novaković, Mirjana M. and Popović, Maja and Schmidt, Emanuel O. and Schoppe, Philipp and Mitrić, Miodrag and Bibić, Nataša M. and Ronning, Carsten and Rakočević, Zlatko Lj.",
year = "2018",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia",
title = "Formation of Ag Nanoparticles in CrN by Using Ag Ion Implantation and Thermal Annealing",
pages = "104-106"
}
Novaković, M. M., Popović, M., Schmidt, E. O., Schoppe, P., Mitrić, M., Bibić, N. M., Ronning, C.,& Rakočević, Z. Lj.. (2018). Formation of Ag Nanoparticles in CrN by Using Ag Ion Implantation and Thermal Annealing. in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
Belgrade : Serbian Academy of Sciences and Arts., 104-106.
Novaković MM, Popović M, Schmidt EO, Schoppe P, Mitrić M, Bibić NM, Ronning C, Rakočević ZL. Formation of Ag Nanoparticles in CrN by Using Ag Ion Implantation and Thermal Annealing. in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia. 2018;:104-106..
Novaković, Mirjana M., Popović, Maja, Schmidt, Emanuel O., Schoppe, Philipp, Mitrić, Miodrag, Bibić, Nataša M., Ronning, Carsten, Rakočević, Zlatko Lj., "Formation of Ag Nanoparticles in CrN by Using Ag Ion Implantation and Thermal Annealing" in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia (2018):104-106.

Copper-polyaniline nanocomposite: Role of physicochemical properties on the antimicrobial activity and genotoxicity evaluation

Bogdanović, Una; Dimitrijević, Suzana I.; Škapin, Srečo Davor; Popović, Maja; Rakočević, Zlatko Lj.; Leskovac, Andreja; Petrović, Sandra; Stoiljković, Milovan; Vodnik, Vesna

(2018)

TY  - JOUR
AU  - Bogdanović, Una
AU  - Dimitrijević, Suzana I.
AU  - Škapin, Srečo Davor
AU  - Popović, Maja
AU  - Rakočević, Zlatko Lj.
AU  - Leskovac, Andreja
AU  - Petrović, Sandra
AU  - Stoiljković, Milovan
AU  - Vodnik, Vesna
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0928493117326449
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7799
AB  - Copper nanoparticles (Cu NPs) have proven to own excellent antimicrobial efficacy, but the problems of easy oxidation and aggregation limit their practical application. Here, nanocomposite based on polyaniline (PANI) and Cu NPs solved this problem and brought additional physicochemical properties that are markedly advantageous for antimicrobial applications. Current work exploits this potential, to examine its time- and concentration-dependent antimicrobial activity, employing E. coli, S. aureus, and C. albicans as a model microbial species. Regarding the presence of polaronic charge carriers in the fibrous polyaniline network, effects of Cu NPs’ size and their partially oxidized surfaces (the data were confirmed by HRTEM, FESEM, XRD, Raman and XPS analysis), as well as rapid copper ions release, Cu-PANI nanocomposite showed efficient bactericidal and fungicidal activities at the concentrations ≤1 ppm, within the incubation time of 2 h. Beside the quantitative analysis, the high levels of cellular disruption for all tested microbes were evidenced by atomic force microscopy. Moreover, the minimum inhibitory and bactericidal concentrations of the Cu-PANI nanocomposite were lower than those reported for other nanocomposites. Using such low concentrations is recognized as a good way to avoid its toxicity toward the environment. For this purpose, Cu-PANI nanocomposite is tested for its genotoxicity and influence on the oxidative status of the human cells in vitro.
T2  - Materials Science and Engineering: C
T1  - Copper-polyaniline nanocomposite: Role of physicochemical properties on the antimicrobial activity and genotoxicity evaluation
VL  - 93
SP  - 49
EP  - 60
DO  - 10.1016/j.msec.2018.07.067
ER  - 
@article{
author = "Bogdanović, Una and Dimitrijević, Suzana I. and Škapin, Srečo Davor and Popović, Maja and Rakočević, Zlatko Lj. and Leskovac, Andreja and Petrović, Sandra and Stoiljković, Milovan and Vodnik, Vesna",
year = "2018",
abstract = "Copper nanoparticles (Cu NPs) have proven to own excellent antimicrobial efficacy, but the problems of easy oxidation and aggregation limit their practical application. Here, nanocomposite based on polyaniline (PANI) and Cu NPs solved this problem and brought additional physicochemical properties that are markedly advantageous for antimicrobial applications. Current work exploits this potential, to examine its time- and concentration-dependent antimicrobial activity, employing E. coli, S. aureus, and C. albicans as a model microbial species. Regarding the presence of polaronic charge carriers in the fibrous polyaniline network, effects of Cu NPs’ size and their partially oxidized surfaces (the data were confirmed by HRTEM, FESEM, XRD, Raman and XPS analysis), as well as rapid copper ions release, Cu-PANI nanocomposite showed efficient bactericidal and fungicidal activities at the concentrations ≤1 ppm, within the incubation time of 2 h. Beside the quantitative analysis, the high levels of cellular disruption for all tested microbes were evidenced by atomic force microscopy. Moreover, the minimum inhibitory and bactericidal concentrations of the Cu-PANI nanocomposite were lower than those reported for other nanocomposites. Using such low concentrations is recognized as a good way to avoid its toxicity toward the environment. For this purpose, Cu-PANI nanocomposite is tested for its genotoxicity and influence on the oxidative status of the human cells in vitro.",
journal = "Materials Science and Engineering: C",
title = "Copper-polyaniline nanocomposite: Role of physicochemical properties on the antimicrobial activity and genotoxicity evaluation",
volume = "93",
pages = "49-60",
doi = "10.1016/j.msec.2018.07.067"
}
Bogdanović, U., Dimitrijević, S. I., Škapin, S. D., Popović, M., Rakočević, Z. Lj., Leskovac, A., Petrović, S., Stoiljković, M.,& Vodnik, V.. (2018). Copper-polyaniline nanocomposite: Role of physicochemical properties on the antimicrobial activity and genotoxicity evaluation. in Materials Science and Engineering: C, 93, 49-60.
https://doi.org/10.1016/j.msec.2018.07.067
Bogdanović U, Dimitrijević SI, Škapin SD, Popović M, Rakočević ZL, Leskovac A, Petrović S, Stoiljković M, Vodnik V. Copper-polyaniline nanocomposite: Role of physicochemical properties on the antimicrobial activity and genotoxicity evaluation. in Materials Science and Engineering: C. 2018;93:49-60.
doi:10.1016/j.msec.2018.07.067 .
Bogdanović, Una, Dimitrijević, Suzana I., Škapin, Srečo Davor, Popović, Maja, Rakočević, Zlatko Lj., Leskovac, Andreja, Petrović, Sandra, Stoiljković, Milovan, Vodnik, Vesna, "Copper-polyaniline nanocomposite: Role of physicochemical properties on the antimicrobial activity and genotoxicity evaluation" in Materials Science and Engineering: C, 93 (2018):49-60,
https://doi.org/10.1016/j.msec.2018.07.067 . .
15
13
13

Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping

Bradarić, Ivica; Matić, Vladimir M.; Savić, Ilija; Rakočević, Zlatko Lj.; Popović, Maja; Destraz, Daniel; Keller, Hugo

(2018)

TY  - JOUR
AU  - Bradarić, Ivica
AU  - Matić, Vladimir M.
AU  - Savić, Ilija
AU  - Rakočević, Zlatko Lj.
AU  - Popović, Maja
AU  - Destraz, Daniel
AU  - Keller, Hugo
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7907
AB  - Calcium ruthenate (CaRuO3) is widely believed to be located close to a quantum critical point due to the strong non-Fermi-liquid behavior expressed in the temperature dependence of electronic transport, specific heat, optical conductivity, etc. However, the corresponding anomalous behavior, marking crossover temperature regimes in the magnetic response of CaRuO3, is still lacking. Here we report detailed AC and DC magnetic susceptibility measurements of CaRuO3 and CaR u0.97 Ti 0.03 O3. The AC magnetic susceptibility measurements of CaRuO3 show a slight dependence on the frequency of AC magnetic field below ∼40K, and an additional subtle change of curvature around 12 K. We interpret these results as a critical slowing down of spin fluctuations towards T = 0 K. We confirm these observations by magnetic measurements of CaRu0.97 Ti 0.03 O3, which show a pronounced magnetic response corresponding to the above temperatures.
T2  - Physical Review B
T1  - Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping
VL  - 98
IS  - 13
SP  - 134436
DO  - 10.1103/PhysRevB.98.134436
ER  - 
@article{
author = "Bradarić, Ivica and Matić, Vladimir M. and Savić, Ilija and Rakočević, Zlatko Lj. and Popović, Maja and Destraz, Daniel and Keller, Hugo",
year = "2018",
abstract = "Calcium ruthenate (CaRuO3) is widely believed to be located close to a quantum critical point due to the strong non-Fermi-liquid behavior expressed in the temperature dependence of electronic transport, specific heat, optical conductivity, etc. However, the corresponding anomalous behavior, marking crossover temperature regimes in the magnetic response of CaRuO3, is still lacking. Here we report detailed AC and DC magnetic susceptibility measurements of CaRuO3 and CaR u0.97 Ti 0.03 O3. The AC magnetic susceptibility measurements of CaRuO3 show a slight dependence on the frequency of AC magnetic field below ∼40K, and an additional subtle change of curvature around 12 K. We interpret these results as a critical slowing down of spin fluctuations towards T = 0 K. We confirm these observations by magnetic measurements of CaRu0.97 Ti 0.03 O3, which show a pronounced magnetic response corresponding to the above temperatures.",
journal = "Physical Review B",
title = "Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping",
volume = "98",
number = "13",
pages = "134436",
doi = "10.1103/PhysRevB.98.134436"
}
Bradarić, I., Matić, V. M., Savić, I., Rakočević, Z. Lj., Popović, M., Destraz, D.,& Keller, H.. (2018). Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping. in Physical Review B, 98(13), 134436.
https://doi.org/10.1103/PhysRevB.98.134436
Bradarić I, Matić VM, Savić I, Rakočević ZL, Popović M, Destraz D, Keller H. Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping. in Physical Review B. 2018;98(13):134436.
doi:10.1103/PhysRevB.98.134436 .
Bradarić, Ivica, Matić, Vladimir M., Savić, Ilija, Rakočević, Zlatko Lj., Popović, Maja, Destraz, Daniel, Keller, Hugo, "Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping" in Physical Review B, 98, no. 13 (2018):134436,
https://doi.org/10.1103/PhysRevB.98.134436 . .
1
2
2

Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping

Bradarić, Ivica; Matić, Vladimir M.; Savić, Ilija; Rakočević, Zlatko Lj.; Popović, Maja; Destraz, Daniel; Keller, Hugo

(2018)

TY  - JOUR
AU  - Bradarić, Ivica
AU  - Matić, Vladimir M.
AU  - Savić, Ilija
AU  - Rakočević, Zlatko Lj.
AU  - Popović, Maja
AU  - Destraz, Daniel
AU  - Keller, Hugo
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7908
UR  - https://arxiv.org/abs/1712.04471
AB  - Calcium ruthenate (CaRuO3) is widely believed to be located close to a quantum critical point due to the strong non-Fermi-liquid behavior expressed in the temperature dependence of electronic transport, specific heat, optical conductivity, etc. However, the corresponding anomalous behavior, marking crossover temperature regimes in the magnetic response of CaRuO3, is still lacking. Here we report detailed AC and DC magnetic susceptibility measurements of CaRuO3 and CaR u0.97 Ti 0.03 O3. The AC magnetic susceptibility measurements of CaRuO3 show a slight dependence on the frequency of AC magnetic field below ∼40K, and an additional subtle change of curvature around 12 K. We interpret these results as a critical slowing down of spin fluctuations towards T = 0 K. We confirm these observations by magnetic measurements of CaRu0.97 Ti 0.03 O3, which show a pronounced magnetic response corresponding to the above temperatures.
T2  - Physical Review B
T1  - Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping
VL  - 98
IS  - 13
SP  - 134436
DO  - 10.1103/PhysRevB.98.134436
ER  - 
@article{
author = "Bradarić, Ivica and Matić, Vladimir M. and Savić, Ilija and Rakočević, Zlatko Lj. and Popović, Maja and Destraz, Daniel and Keller, Hugo",
year = "2018",
abstract = "Calcium ruthenate (CaRuO3) is widely believed to be located close to a quantum critical point due to the strong non-Fermi-liquid behavior expressed in the temperature dependence of electronic transport, specific heat, optical conductivity, etc. However, the corresponding anomalous behavior, marking crossover temperature regimes in the magnetic response of CaRuO3, is still lacking. Here we report detailed AC and DC magnetic susceptibility measurements of CaRuO3 and CaR u0.97 Ti 0.03 O3. The AC magnetic susceptibility measurements of CaRuO3 show a slight dependence on the frequency of AC magnetic field below ∼40K, and an additional subtle change of curvature around 12 K. We interpret these results as a critical slowing down of spin fluctuations towards T = 0 K. We confirm these observations by magnetic measurements of CaRu0.97 Ti 0.03 O3, which show a pronounced magnetic response corresponding to the above temperatures.",
journal = "Physical Review B",
title = "Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping",
volume = "98",
number = "13",
pages = "134436",
doi = "10.1103/PhysRevB.98.134436"
}
Bradarić, I., Matić, V. M., Savić, I., Rakočević, Z. Lj., Popović, M., Destraz, D.,& Keller, H.. (2018). Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping. in Physical Review B, 98(13), 134436.
https://doi.org/10.1103/PhysRevB.98.134436
Bradarić I, Matić VM, Savić I, Rakočević ZL, Popović M, Destraz D, Keller H. Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping. in Physical Review B. 2018;98(13):134436.
doi:10.1103/PhysRevB.98.134436 .
Bradarić, Ivica, Matić, Vladimir M., Savić, Ilija, Rakočević, Zlatko Lj., Popović, Maja, Destraz, Daniel, Keller, Hugo, "Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping" in Physical Review B, 98, no. 13 (2018):134436,
https://doi.org/10.1103/PhysRevB.98.134436 . .
1
2
2
2

Confirmation of Incorporation of Cu and Se Ions in Applied p- and n-Type-Doped Sb2S3 by Photoemission Spectroscopy

Validžić, Ivana Lj.; Popović, Maja; Lojpur, Vesna; Bundaleski, Nenad; Rakočević, Zlatko Lj.

(2018)

TY  - JOUR
AU  - Validžić, Ivana Lj.
AU  - Popović, Maja
AU  - Lojpur, Vesna
AU  - Bundaleski, Nenad
AU  - Rakočević, Zlatko Lj.
PY  - 2018
UR  - http://link.springer.com/10.1007/s11664-018-6072-5
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7646
AB  - The effect of incorporating copper (Cu) and selenium (Se) ions into stibnite (Sb2S3) lattice was investigated using x-ray photoelectron spectroscopy (XPS). The incorporation of Cu and Se ions was verified by comparing the XPS spectra of the undoped (amorphous Sb2S3), doped (p and n-doped) and pure Se and Cu-acetate powders. The main photoelectron Cu 2p(1/2) (951.8 eV) and Cu 2p(3/2) (932.1 eV) lines derived from the Cu-doped and Cu-acetate powder samples were clearly observed, whereas in the undoped sample, none of the characteristic lines of Cu were detected. The Se Auger line (138.6 eV), the only line of Se which does not coincide with the lines of Sb and S, was successfully detected in an Se-doped XPS sample and the spectrum of pure Se, while Se in the undoped sample was not found. Further, the XPS measurements revealed the relative amounts of Cu and Se in antimony sulfide, as well as the oxidation state of copper incorporated into the matrix.
T2  - Journal of Electronic Materials
T1  - Confirmation of Incorporation of Cu and Se Ions in Applied p- and n-Type-Doped Sb2S3 by Photoemission Spectroscopy
VL  - 47
IS  - 4
SP  - 2402
EP  - 2410
DO  - 10.1007/s11664-018-6072-5
ER  - 
@article{
author = "Validžić, Ivana Lj. and Popović, Maja and Lojpur, Vesna and Bundaleski, Nenad and Rakočević, Zlatko Lj.",
year = "2018",
abstract = "The effect of incorporating copper (Cu) and selenium (Se) ions into stibnite (Sb2S3) lattice was investigated using x-ray photoelectron spectroscopy (XPS). The incorporation of Cu and Se ions was verified by comparing the XPS spectra of the undoped (amorphous Sb2S3), doped (p and n-doped) and pure Se and Cu-acetate powders. The main photoelectron Cu 2p(1/2) (951.8 eV) and Cu 2p(3/2) (932.1 eV) lines derived from the Cu-doped and Cu-acetate powder samples were clearly observed, whereas in the undoped sample, none of the characteristic lines of Cu were detected. The Se Auger line (138.6 eV), the only line of Se which does not coincide with the lines of Sb and S, was successfully detected in an Se-doped XPS sample and the spectrum of pure Se, while Se in the undoped sample was not found. Further, the XPS measurements revealed the relative amounts of Cu and Se in antimony sulfide, as well as the oxidation state of copper incorporated into the matrix.",
journal = "Journal of Electronic Materials",
title = "Confirmation of Incorporation of Cu and Se Ions in Applied p- and n-Type-Doped Sb2S3 by Photoemission Spectroscopy",
volume = "47",
number = "4",
pages = "2402-2410",
doi = "10.1007/s11664-018-6072-5"
}
Validžić, I. Lj., Popović, M., Lojpur, V., Bundaleski, N.,& Rakočević, Z. Lj.. (2018). Confirmation of Incorporation of Cu and Se Ions in Applied p- and n-Type-Doped Sb2S3 by Photoemission Spectroscopy. in Journal of Electronic Materials, 47(4), 2402-2410.
https://doi.org/10.1007/s11664-018-6072-5
Validžić IL, Popović M, Lojpur V, Bundaleski N, Rakočević ZL. Confirmation of Incorporation of Cu and Se Ions in Applied p- and n-Type-Doped Sb2S3 by Photoemission Spectroscopy. in Journal of Electronic Materials. 2018;47(4):2402-2410.
doi:10.1007/s11664-018-6072-5 .
Validžić, Ivana Lj., Popović, Maja, Lojpur, Vesna, Bundaleski, Nenad, Rakočević, Zlatko Lj., "Confirmation of Incorporation of Cu and Se Ions in Applied p- and n-Type-Doped Sb2S3 by Photoemission Spectroscopy" in Journal of Electronic Materials, 47, no. 4 (2018):2402-2410,
https://doi.org/10.1007/s11664-018-6072-5 . .
3
3

Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel

Spasojević, Jelena P.; Radosavljević, Aleksandra; Krstić, Jelena; Mitrić, Miodrag; Popović, Maja; Rakočević, Zlatko Lj.; Kalagasidis-Krusic, Melina; Kačarević-Popović, Zorica M.

(2017)

TY  - JOUR
AU  - Spasojević, Jelena P.
AU  - Radosavljević, Aleksandra
AU  - Krstić, Jelena
AU  - Mitrić, Miodrag
AU  - Popović, Maja
AU  - Rakočević, Zlatko Lj.
AU  - Kalagasidis-Krusic, Melina
AU  - Kačarević-Popović, Zorica M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1562
AB  - To produce well-defined metal clusters stabilized in protective matrix, poly(N-isopropylacrylamide) (PNi-PAAm) hydrogel with different initial concentration of polymer was used as nanoreactor. The in situ synthesis of well dispersed silver nanoparticles (AgNPs) was performed by gamma irradiation. The obtained AgNPs are spherical in shape with the diameter less than 20 nm. Crystalline properties of nanoparticles such as size, texture coefficient, strain, stress, lattice parameter, d-spacing, and dislocation density have been calculated using XRD data. Results confirm that the changes of lattice parameter of crystalline AgNPs sensitively reflect their state of strain and stress depending on the formation conditions (i.e., on the concentration of PNiPAAm) and on the diameter of AgNPs. The negative lattice strain and compression stress were observed for the smaller AgNPs (lattice contraction), while for the larger AgNPs are positively strained and under tensile stress (lattice expansion). XPS spectra revealed the donor-acceptor type of interaction between carbonyl oxygen from PNiPAAm and AgNPs (positive shift of high BE component of O 1s and negative shift of Ag 3d BE). The greater dislocation density of smaller AgNPs incorporated in more concentrated PNiPAAm, resulted in more binding sites and stronger interaction with polymer. (C) 2015 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel
VL  - 38
IS  - 5
SP  - 1014
EP  - 1026
DO  - 10.1002/pc.23665
ER  - 
@article{
author = "Spasojević, Jelena P. and Radosavljević, Aleksandra and Krstić, Jelena and Mitrić, Miodrag and Popović, Maja and Rakočević, Zlatko Lj. and Kalagasidis-Krusic, Melina and Kačarević-Popović, Zorica M.",
year = "2017",
abstract = "To produce well-defined metal clusters stabilized in protective matrix, poly(N-isopropylacrylamide) (PNi-PAAm) hydrogel with different initial concentration of polymer was used as nanoreactor. The in situ synthesis of well dispersed silver nanoparticles (AgNPs) was performed by gamma irradiation. The obtained AgNPs are spherical in shape with the diameter less than 20 nm. Crystalline properties of nanoparticles such as size, texture coefficient, strain, stress, lattice parameter, d-spacing, and dislocation density have been calculated using XRD data. Results confirm that the changes of lattice parameter of crystalline AgNPs sensitively reflect their state of strain and stress depending on the formation conditions (i.e., on the concentration of PNiPAAm) and on the diameter of AgNPs. The negative lattice strain and compression stress were observed for the smaller AgNPs (lattice contraction), while for the larger AgNPs are positively strained and under tensile stress (lattice expansion). XPS spectra revealed the donor-acceptor type of interaction between carbonyl oxygen from PNiPAAm and AgNPs (positive shift of high BE component of O 1s and negative shift of Ag 3d BE). The greater dislocation density of smaller AgNPs incorporated in more concentrated PNiPAAm, resulted in more binding sites and stronger interaction with polymer. (C) 2015 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel",
volume = "38",
number = "5",
pages = "1014-1026",
doi = "10.1002/pc.23665"
}
Spasojević, J. P., Radosavljević, A., Krstić, J., Mitrić, M., Popović, M., Rakočević, Z. Lj., Kalagasidis-Krusic, M.,& Kačarević-Popović, Z. M.. (2017). Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel. in Polymer Composites, 38(5), 1014-1026.
https://doi.org/10.1002/pc.23665
Spasojević JP, Radosavljević A, Krstić J, Mitrić M, Popović M, Rakočević ZL, Kalagasidis-Krusic M, Kačarević-Popović ZM. Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel. in Polymer Composites. 2017;38(5):1014-1026.
doi:10.1002/pc.23665 .
Spasojević, Jelena P., Radosavljević, Aleksandra, Krstić, Jelena, Mitrić, Miodrag, Popović, Maja, Rakočević, Zlatko Lj., Kalagasidis-Krusic, Melina, Kačarević-Popović, Zorica M., "Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel" in Polymer Composites, 38, no. 5 (2017):1014-1026,
https://doi.org/10.1002/pc.23665 . .
7
8

Low-loss and tunable near-zero-epsilon titanium nitride

Popović, Maja; Novaković, Mirjana M.; Schmidt, Emanuel O.; Schoeppe, P.; Bibić, Nataša M.; Ronning, Carsten; Rakočević, Zlatko Lj.

(2017)

TY  - JOUR
AU  - Popović, Maja
AU  - Novaković, Mirjana M.
AU  - Schmidt, Emanuel O.
AU  - Schoeppe, P.
AU  - Bibić, Nataša M.
AU  - Ronning, Carsten
AU  - Rakočević, Zlatko Lj.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1800
AB  - Titanium nitride (TiN) has emerged as alternative plasmonic material in the visible and near-infrared spectral range due to its metallic properties. We studied the influence of silver ion implantation (fluence range from 0.5 x 10(16)-6 x 10(16) ions/cm(2)) on the structural and optical properties of reactively sputtered 260 nm thick TiN films. The columnar structure was partially destroyed by the irradiation and up to 5 at% of Ag was incorporated into the films within the projected ion range. The formation of cubic Ag nanoparticles with size of 1-2 nm was observed by high resolution transmission electron microscopy and subsequent fast Fourier transform analysis. This presence of Ag within the TiN matrix drastically changes both the real and imaginary component of the dielectric function and provides low optical losses. A Drude Lorentz dielectric analysis based on free electron and oscillator model are carried out to describe the silver influence on the optical behavior of TiN. With increasing ion fluence, the unscreened plasma frequency decreased and broadening increased. The energy, strength and broadening of the interband transitions were studied with respect to the silver ion fluence and correlated with the microstructural changes induced in TiN films. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Optical Materials
T1  - Low-loss and tunable near-zero-epsilon titanium nitride
VL  - 72
SP  - 775
EP  - 780
DO  - 10.1016/j.optmat.2017.07.035
ER  - 
@article{
author = "Popović, Maja and Novaković, Mirjana M. and Schmidt, Emanuel O. and Schoeppe, P. and Bibić, Nataša M. and Ronning, Carsten and Rakočević, Zlatko Lj.",
year = "2017",
abstract = "Titanium nitride (TiN) has emerged as alternative plasmonic material in the visible and near-infrared spectral range due to its metallic properties. We studied the influence of silver ion implantation (fluence range from 0.5 x 10(16)-6 x 10(16) ions/cm(2)) on the structural and optical properties of reactively sputtered 260 nm thick TiN films. The columnar structure was partially destroyed by the irradiation and up to 5 at% of Ag was incorporated into the films within the projected ion range. The formation of cubic Ag nanoparticles with size of 1-2 nm was observed by high resolution transmission electron microscopy and subsequent fast Fourier transform analysis. This presence of Ag within the TiN matrix drastically changes both the real and imaginary component of the dielectric function and provides low optical losses. A Drude Lorentz dielectric analysis based on free electron and oscillator model are carried out to describe the silver influence on the optical behavior of TiN. With increasing ion fluence, the unscreened plasma frequency decreased and broadening increased. The energy, strength and broadening of the interband transitions were studied with respect to the silver ion fluence and correlated with the microstructural changes induced in TiN films. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Optical Materials",
title = "Low-loss and tunable near-zero-epsilon titanium nitride",
volume = "72",
pages = "775-780",
doi = "10.1016/j.optmat.2017.07.035"
}
Popović, M., Novaković, M. M., Schmidt, E. O., Schoeppe, P., Bibić, N. M., Ronning, C.,& Rakočević, Z. Lj.. (2017). Low-loss and tunable near-zero-epsilon titanium nitride. in Optical Materials, 72, 775-780.
https://doi.org/10.1016/j.optmat.2017.07.035
Popović M, Novaković MM, Schmidt EO, Schoeppe P, Bibić NM, Ronning C, Rakočević ZL. Low-loss and tunable near-zero-epsilon titanium nitride. in Optical Materials. 2017;72:775-780.
doi:10.1016/j.optmat.2017.07.035 .
Popović, Maja, Novaković, Mirjana M., Schmidt, Emanuel O., Schoeppe, P., Bibić, Nataša M., Ronning, Carsten, Rakočević, Zlatko Lj., "Low-loss and tunable near-zero-epsilon titanium nitride" in Optical Materials, 72 (2017):775-780,
https://doi.org/10.1016/j.optmat.2017.07.035 . .
9
10

Clustering of gold particles in Au implanted CrN thin films: The effect on the SPR peak position

Novaković, Mirjana M.; Popović, Maja; Schmidt, Emanuel O.; Mitrić, Miodrag; Bibić, Nataša M.; Rakočević, Zlatko Lj.; Ronning, Carsten

(2017)

TY  - JOUR
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Schmidt, Emanuel O.
AU  - Mitrić, Miodrag
AU  - Bibić, Nataša M.
AU  - Rakočević, Zlatko Lj.
AU  - Ronning, Carsten
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1794
AB  - We report on the formation of gold particles in 280 nm thin polycrystalline CrN layers caused by Au+ ion implantation. The CrN layers were deposited at 150 degrees C by d.c. reactive sputtering on Si(100) wafers and then implanted at room temperature with 1501keV Au+ ions to fluences of 2 x 10(16) cm(-2) to 4.1 x 10(16) cm(-2). The implanted layers were analysed by the means of Rutherford backscattering spectrometry, X-ray diffraction, atomic force microscopy and spectroscopic ellipsometry measurements. The results revealed that the Au atoms are situated in the near-surface region of the implanted CrN layers. At the fluence of 2 x 10(16) cm(-2) the formation of Au particles of similar to 200 nm in diameter has been observed. With increasing Au ion fluence the particles coalesce into clusters with dimensions of similar to 7 mu m . The synthesized particles show a strong absorption peak associated with the excitation of surface plasmon resonances (SPR). The position of the SPR peak shifted in the range of 426.8-690.5 nm when the Au+ ion fluence was varied from 2 x 10(16) cm(-2) to 4.1 x 10(16) cm(-2). A correlation of the shift in the peak wavelength caused by the change in the particles size and clustering has been revealed, suggesting that the interaction between Au particles dominate the surface plasmon resonance effect. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Clustering of gold particles in Au implanted CrN thin films: The effect on the SPR peak position
VL  - 426
SP  - 667
EP  - 673
DO  - 10.1016/j.apsusc.2017.07.233
ER  - 
@article{
author = "Novaković, Mirjana M. and Popović, Maja and Schmidt, Emanuel O. and Mitrić, Miodrag and Bibić, Nataša M. and Rakočević, Zlatko Lj. and Ronning, Carsten",
year = "2017",
abstract = "We report on the formation of gold particles in 280 nm thin polycrystalline CrN layers caused by Au+ ion implantation. The CrN layers were deposited at 150 degrees C by d.c. reactive sputtering on Si(100) wafers and then implanted at room temperature with 1501keV Au+ ions to fluences of 2 x 10(16) cm(-2) to 4.1 x 10(16) cm(-2). The implanted layers were analysed by the means of Rutherford backscattering spectrometry, X-ray diffraction, atomic force microscopy and spectroscopic ellipsometry measurements. The results revealed that the Au atoms are situated in the near-surface region of the implanted CrN layers. At the fluence of 2 x 10(16) cm(-2) the formation of Au particles of similar to 200 nm in diameter has been observed. With increasing Au ion fluence the particles coalesce into clusters with dimensions of similar to 7 mu m . The synthesized particles show a strong absorption peak associated with the excitation of surface plasmon resonances (SPR). The position of the SPR peak shifted in the range of 426.8-690.5 nm when the Au+ ion fluence was varied from 2 x 10(16) cm(-2) to 4.1 x 10(16) cm(-2). A correlation of the shift in the peak wavelength caused by the change in the particles size and clustering has been revealed, suggesting that the interaction between Au particles dominate the surface plasmon resonance effect. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Clustering of gold particles in Au implanted CrN thin films: The effect on the SPR peak position",
volume = "426",
pages = "667-673",
doi = "10.1016/j.apsusc.2017.07.233"
}
Novaković, M. M., Popović, M., Schmidt, E. O., Mitrić, M., Bibić, N. M., Rakočević, Z. Lj.,& Ronning, C.. (2017). Clustering of gold particles in Au implanted CrN thin films: The effect on the SPR peak position. in Applied Surface Science, 426, 667-673.
https://doi.org/10.1016/j.apsusc.2017.07.233
Novaković MM, Popović M, Schmidt EO, Mitrić M, Bibić NM, Rakočević ZL, Ronning C. Clustering of gold particles in Au implanted CrN thin films: The effect on the SPR peak position. in Applied Surface Science. 2017;426:667-673.
doi:10.1016/j.apsusc.2017.07.233 .
Novaković, Mirjana M., Popović, Maja, Schmidt, Emanuel O., Mitrić, Miodrag, Bibić, Nataša M., Rakočević, Zlatko Lj., Ronning, Carsten, "Clustering of gold particles in Au implanted CrN thin films: The effect on the SPR peak position" in Applied Surface Science, 426 (2017):667-673,
https://doi.org/10.1016/j.apsusc.2017.07.233 . .
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Evolution of structural and optical properties of Ag implanted CrN thin films with annealing temperature

Novaković, Mirjana M.; Popović, Maja; Schmidt, Emanuel O.; Schoeppe, P.; Mitrić, Miodrag; Bibić, Nataša M.; Ronning, Carsten; Rakočević, Zlatko Lj.

(2017)

TY  - JOUR
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Schmidt, Emanuel O.
AU  - Schoeppe, P.
AU  - Mitrić, Miodrag
AU  - Bibić, Nataša M.
AU  - Ronning, Carsten
AU  - Rakočević, Zlatko Lj.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1793
AB  - This study reports on the changes of the structural and optical properties occurring in CrN thin films upon Ag ion implantation. The films were grown by reactive sputtering on top of Si (100) wafers at a temperature of around 150 degrees C. Subsequently, the films were implanted with Ag ion fluences in the range of 0.5 x 10(16) ions/cm(2) -2 x 10(16) ions/cm(2) with energy of 200 keV. The structural and morphological changes, promoted by in-vacuum annealing of the as-implanted thin films at 200 degrees C, 400 degrees C and 700 degrees C, resulted in different optical responses of the CrN: Ag films due to the formation of Ag nanoparticles. The nanoparticles were inhomogenously distributed through the layer, which is related to the implantation distribution of silver in CrN. Apart from this, Ag nanoparticles with a size of 20-25 nm were formed at the surface of the layer. These structural properties are responsible for the formation of a broad optical absorption peak. This peak is located at similar to 420 nm and can be associated with the plasmon resonance of Ag particles embedded in the CrN matrix. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Evolution of structural and optical properties of Ag implanted CrN thin films with annealing temperature
VL  - 729
SP  - 671
EP  - 678
DO  - 10.1016/j.jallcom.2017.09.180
ER  - 
@article{
author = "Novaković, Mirjana M. and Popović, Maja and Schmidt, Emanuel O. and Schoeppe, P. and Mitrić, Miodrag and Bibić, Nataša M. and Ronning, Carsten and Rakočević, Zlatko Lj.",
year = "2017",
abstract = "This study reports on the changes of the structural and optical properties occurring in CrN thin films upon Ag ion implantation. The films were grown by reactive sputtering on top of Si (100) wafers at a temperature of around 150 degrees C. Subsequently, the films were implanted with Ag ion fluences in the range of 0.5 x 10(16) ions/cm(2) -2 x 10(16) ions/cm(2) with energy of 200 keV. The structural and morphological changes, promoted by in-vacuum annealing of the as-implanted thin films at 200 degrees C, 400 degrees C and 700 degrees C, resulted in different optical responses of the CrN: Ag films due to the formation of Ag nanoparticles. The nanoparticles were inhomogenously distributed through the layer, which is related to the implantation distribution of silver in CrN. Apart from this, Ag nanoparticles with a size of 20-25 nm were formed at the surface of the layer. These structural properties are responsible for the formation of a broad optical absorption peak. This peak is located at similar to 420 nm and can be associated with the plasmon resonance of Ag particles embedded in the CrN matrix. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Evolution of structural and optical properties of Ag implanted CrN thin films with annealing temperature",
volume = "729",
pages = "671-678",
doi = "10.1016/j.jallcom.2017.09.180"
}
Novaković, M. M., Popović, M., Schmidt, E. O., Schoeppe, P., Mitrić, M., Bibić, N. M., Ronning, C.,& Rakočević, Z. Lj.. (2017). Evolution of structural and optical properties of Ag implanted CrN thin films with annealing temperature. in Journal of Alloys and Compounds, 729, 671-678.
https://doi.org/10.1016/j.jallcom.2017.09.180
Novaković MM, Popović M, Schmidt EO, Schoeppe P, Mitrić M, Bibić NM, Ronning C, Rakočević ZL. Evolution of structural and optical properties of Ag implanted CrN thin films with annealing temperature. in Journal of Alloys and Compounds. 2017;729:671-678.
doi:10.1016/j.jallcom.2017.09.180 .
Novaković, Mirjana M., Popović, Maja, Schmidt, Emanuel O., Schoeppe, P., Mitrić, Miodrag, Bibić, Nataša M., Ronning, Carsten, Rakočević, Zlatko Lj., "Evolution of structural and optical properties of Ag implanted CrN thin films with annealing temperature" in Journal of Alloys and Compounds, 729 (2017):671-678,
https://doi.org/10.1016/j.jallcom.2017.09.180 . .
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