TY  - THES
AU  - Kuzmanović, Bojana
PY  - 2021
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=8178
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:23842/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=39968009
UR  - https://nardus.mpn.gov.rs/handle/123456789/18358
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11294
AB  - Uprkos opsežnim istraživanjima i primenama polianilina (PANI), uticaj kiseonika i -OH grupe na njegova svojstva nije u potpunosti razjašnjen. Zbog toga su u ovoj tezi urađeni detaljni kvantni proračuni interakcija PANI_PNB (pernigranilin baza) i PANI_EB (emeraldin baza) tertramera sa O2, H2O i -OH grupom i promena nastalih usled vezivanja O atoma i -OH grupe na različite položaje na njima. Ustanovljeno je da perturbacije indukovane vezivanjima jako zavise od forme PANI, od atoma ili grupe koja se veže i od položaja vezivanja na molekulu, što nudi raznovrsne mogućnosti modifikacije svojstava PANI materijala i razumevanje njihovih promena u realnim uslovima eksploatacije. Posebno je interesantna mogućnost uspostavljanja provodnog režima i jake apsorpcije u vidljivom delu spektra uočena u ovako modifikovanom PANI_PNB. Ova saznanja su iskorišćena tokom eksperimentalnih ispitivanja sinteze, svojstava i mogućnosti primene kompozita sačinjenih od PANI_ES (emeraldin so) i nanoprahova CeO2-δ sa različitom koncentracijom O-vakancija, dobijenih sintezom u čvrstom stanju ili hidrotermalnom sintezom. Struktura, termodinamička i elektrohemijska svojstva kompozita PANI_ES@CeO2-δ su ispitana FTIR i ramanskom spektroskopijom, skenirajućom elektronskom mikroskopijom, TG/DTA analizom i metodom CV. Utvrđeno je da PANI_ES-CeO2-δ interakcije slabe veze između lanaca polimera, smanjuju provodljivost kompozita, ali, zavisno od svojstava ugrađenog oksida, olakšavaju privlačenje jona iz elektrolita i pospešuju skladištenje naelektrisanja u kompozitu. Dobijeni rezultati pokazuju da su ispitivani kompoziti novi materijali, sa izuzetno velikim kapacitetom za skladištenje naelektrisanja, stabilni u kiselom rastvoru, što ih čini veoma perspektivnim za izradu elektroda za superkondenzatore.
AB  - In spite of intensive investigation and applications of polyaniline (PANI) influence of oxygen and -OH group on its properties is not well understood. For this reason detailed quantum-mechanic calculations of pernigraniline base PANI_PNB, and emeraldine base PANI_EB tetramers interactions with O2, H2O, and -OH group, and of consequences of O and -OH attachment on various molecular positions were performed. It was established that attachment induced perturbations strongly depend on PANI form, the attached specie, and the attachment position, offering versatile possibilities for PANI modification, and for monitoring its behavior under realistic exploitation conditions. The established possibility to produce the conducting regime and strong absorption in the visible range of spectrum in PANI_PNB modified that way is particularly interesting. These findings were used during experimental investigation of synthesis, properties and application possibilities of emeraldine salt PANI_ES-CeO2-δ composites. CeO2-δ powders were produced by self-propagated solid state synthesis, or hydrothermal synthesis and contain different concentrations of O-vacancies. Structure, thermodynamical and electrochemical properties of PANI_ES@CeO2-δ composites were investigated by SEM, FTIR, Raman, TG/DTA and CV measurements. It was found that PANI_ES-CeO2-δ interactions, in dependence on CeO2-δ properties, weaken the polymer interchain bonds, decrease the composites mobility, but elevate ions attraction from electrolyte and improve the composites charge storage ability. The obtained results suggest that the investigated composites are novel materials with very high charge storage capacity, stable in acid solution, which makes them highly perspective as supercapacitors electrode materials.
PB  - Универзитет у Београду, Факултет за физичку хемију
T2  - Универзитет у Београду
T1  - Struktura i elektrohemijska svojstva polianilina i njegovih kompozita sintetisanih u prisustvu nestehiometrijskog cerijum(IV)-oksida CeO2ß- eksperimentalni i teorijski pristup
UR  - https://hdl.handle.net/21.15107/rcub_nardus_18358
ER  - 

@phdthesis{
author = "Kuzmanović, Bojana",
year = "2021",
abstract = "Uprkos opsežnim istraživanjima i primenama polianilina (PANI), uticaj kiseonika i -OH grupe na njegova svojstva nije u potpunosti razjašnjen. Zbog toga su u ovoj tezi urađeni detaljni kvantni proračuni interakcija PANI_PNB (pernigranilin baza) i PANI_EB (emeraldin baza) tertramera sa O2, H2O i -OH grupom i promena nastalih usled vezivanja O atoma i -OH grupe na različite položaje na njima. Ustanovljeno je da perturbacije indukovane vezivanjima jako zavise od forme PANI, od atoma ili grupe koja se veže i od položaja vezivanja na molekulu, što nudi raznovrsne mogućnosti modifikacije svojstava PANI materijala i razumevanje njihovih promena u realnim uslovima eksploatacije. Posebno je interesantna mogućnost uspostavljanja provodnog režima i jake apsorpcije u vidljivom delu spektra uočena u ovako modifikovanom PANI_PNB. Ova saznanja su iskorišćena tokom eksperimentalnih ispitivanja sinteze, svojstava i mogućnosti primene kompozita sačinjenih od PANI_ES (emeraldin so) i nanoprahova CeO2-δ sa različitom koncentracijom O-vakancija, dobijenih sintezom u čvrstom stanju ili hidrotermalnom sintezom. Struktura, termodinamička i elektrohemijska svojstva kompozita PANI_ES@CeO2-δ su ispitana FTIR i ramanskom spektroskopijom, skenirajućom elektronskom mikroskopijom, TG/DTA analizom i metodom CV. Utvrđeno je da PANI_ES-CeO2-δ interakcije slabe veze između lanaca polimera, smanjuju provodljivost kompozita, ali, zavisno od svojstava ugrađenog oksida, olakšavaju privlačenje jona iz elektrolita i pospešuju skladištenje naelektrisanja u kompozitu. Dobijeni rezultati pokazuju da su ispitivani kompoziti novi materijali, sa izuzetno velikim kapacitetom za skladištenje naelektrisanja, stabilni u kiselom rastvoru, što ih čini veoma perspektivnim za izradu elektroda za superkondenzatore., In spite of intensive investigation and applications of polyaniline (PANI) influence of oxygen and -OH group on its properties is not well understood. For this reason detailed quantum-mechanic calculations of pernigraniline base PANI_PNB, and emeraldine base PANI_EB tetramers interactions with O2, H2O, and -OH group, and of consequences of O and -OH attachment on various molecular positions were performed. It was established that attachment induced perturbations strongly depend on PANI form, the attached specie, and the attachment position, offering versatile possibilities for PANI modification, and for monitoring its behavior under realistic exploitation conditions. The established possibility to produce the conducting regime and strong absorption in the visible range of spectrum in PANI_PNB modified that way is particularly interesting. These findings were used during experimental investigation of synthesis, properties and application possibilities of emeraldine salt PANI_ES-CeO2-δ composites. CeO2-δ powders were produced by self-propagated solid state synthesis, or hydrothermal synthesis and contain different concentrations of O-vacancies. Structure, thermodynamical and electrochemical properties of PANI_ES@CeO2-δ composites were investigated by SEM, FTIR, Raman, TG/DTA and CV measurements. It was found that PANI_ES-CeO2-δ interactions, in dependence on CeO2-δ properties, weaken the polymer interchain bonds, decrease the composites mobility, but elevate ions attraction from electrolyte and improve the composites charge storage ability. The obtained results suggest that the investigated composites are novel materials with very high charge storage capacity, stable in acid solution, which makes them highly perspective as supercapacitors electrode materials.",
publisher = "Универзитет у Београду, Факултет за физичку хемију",
journal = "Универзитет у Београду",
title = "Struktura i elektrohemijska svojstva polianilina i njegovih kompozita sintetisanih u prisustvu nestehiometrijskog cerijum(IV)-oksida CeO2ß- eksperimentalni i teorijski pristup",
url = "https://hdl.handle.net/21.15107/rcub_nardus_18358"
}

Kuzmanović, B.. (2021). Struktura i elektrohemijska svojstva polianilina i njegovih kompozita sintetisanih u prisustvu nestehiometrijskog cerijum(IV)-oksida CeO2ß- eksperimentalni i teorijski pristup. in Универзитет у Београду
Универзитет у Београду, Факултет за физичку хемију..
https://hdl.handle.net/21.15107/rcub_nardus_18358

Kuzmanović B. Struktura i elektrohemijska svojstva polianilina i njegovih kompozita sintetisanih u prisustvu nestehiometrijskog cerijum(IV)-oksida CeO2ß- eksperimentalni i teorijski pristup. in Универзитет у Београду. 2021;.
https://hdl.handle.net/21.15107/rcub_nardus_18358 .

Kuzmanović, Bojana, "Struktura i elektrohemijska svojstva polianilina i njegovih kompozita sintetisanih u prisustvu nestehiometrijskog cerijum(IV)-oksida CeO2ß- eksperimentalni i teorijski pristup" in Универзитет у Београду (2021),
https://hdl.handle.net/21.15107/rcub_nardus_18358 .

TY  - JOUR
AU  - Medić-Ilić, Mirjana
AU  - Bundaleski, Nenad
AU  - Ivanović, Nenad
AU  - Teodoro, Orlando M. N. D.
AU  - Rakočević, Zlatko Lj.
AU  - Minić, Dragica M.
AU  - Romčević, Nebojša Ž.
AU  - Radisavljević, Ivana
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8910
AB  - Recently introduced model for quantitative analysis of in-depth non-uniform surfaces is applied to reexamine the X-ray Photoelectron Spectroscopy (XPS) data of Cd0.99Fe0.01Te0.97Se0.03 and Zn0.98Fe0.02Te0.91Se0.09 crystalline samples. Special attention is paid to the precise identification of phases which form the bulk-like near-surface region and the surface overlayers (the oxide layer and the layer of organic impurities), as well as the influence of surface morphology on the measurements. The obtained results fully support earlier qualitative estimations, but also provide new quantitative insight into the composition of the three investigated regions. The near-surface region of Cd0.99Fe0.01Te0.97Se0.03 and Zn0.98Fe0.02Te0.91Se0.09 samples is slightly electropositive, with cation/anion ratio 52:48 and 53:47, respectively. Model surface structures, which are fully compatible with the experimental results, comprise 0.76 nm thick CdTeO3 layer at the surface of Cd0.99Fe0.01Te0.97Se0.03 and 0.33 nm thick mixed ZnO/TeO2 oxide layer on Zn0.98Fe0.02Te0.91Se0.09. In both samples the oxide layer is only a few atomic layers thick, implying that it suppresses further rapid migration of oxygen into the bulk.
T2  - Vacuum
T1  - XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited
VL  - 176
SP  - 109340
DO  - 10.1016/j.vacuum.2020.109340
ER  - 

@article{
author = "Medić-Ilić, Mirjana and Bundaleski, Nenad and Ivanović, Nenad and Teodoro, Orlando M. N. D. and Rakočević, Zlatko Lj. and Minić, Dragica M. and Romčević, Nebojša Ž. and Radisavljević, Ivana",
year = "2020",
abstract = "Recently introduced model for quantitative analysis of in-depth non-uniform surfaces is applied to reexamine the X-ray Photoelectron Spectroscopy (XPS) data of Cd0.99Fe0.01Te0.97Se0.03 and Zn0.98Fe0.02Te0.91Se0.09 crystalline samples. Special attention is paid to the precise identification of phases which form the bulk-like near-surface region and the surface overlayers (the oxide layer and the layer of organic impurities), as well as the influence of surface morphology on the measurements. The obtained results fully support earlier qualitative estimations, but also provide new quantitative insight into the composition of the three investigated regions. The near-surface region of Cd0.99Fe0.01Te0.97Se0.03 and Zn0.98Fe0.02Te0.91Se0.09 samples is slightly electropositive, with cation/anion ratio 52:48 and 53:47, respectively. Model surface structures, which are fully compatible with the experimental results, comprise 0.76 nm thick CdTeO3 layer at the surface of Cd0.99Fe0.01Te0.97Se0.03 and 0.33 nm thick mixed ZnO/TeO2 oxide layer on Zn0.98Fe0.02Te0.91Se0.09. In both samples the oxide layer is only a few atomic layers thick, implying that it suppresses further rapid migration of oxygen into the bulk.",
journal = "Vacuum",
title = "XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited",
volume = "176",
pages = "109340",
doi = "10.1016/j.vacuum.2020.109340"
}

Medić-Ilić, M., Bundaleski, N., Ivanović, N., Teodoro, O. M. N. D., Rakočević, Z. Lj., Minić, D. M., Romčević, N. Ž.,& Radisavljević, I.. (2020). XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited. in Vacuum, 176, 109340.
https://doi.org/10.1016/j.vacuum.2020.109340

Medić-Ilić M, Bundaleski N, Ivanović N, Teodoro OMND, Rakočević ZL, Minić DM, Romčević NŽ, Radisavljević I. XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited. in Vacuum. 2020;176:109340.
doi:10.1016/j.vacuum.2020.109340 .

Medić-Ilić, Mirjana, Bundaleski, Nenad, Ivanović, Nenad, Teodoro, Orlando M. N. D., Rakočević, Zlatko Lj., Minić, Dragica M., Romčević, Nebojša Ž., Radisavljević, Ivana, "XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited" in Vacuum, 176 (2020):109340,
https://doi.org/10.1016/j.vacuum.2020.109340 . .

TY  - JOUR
AU  - Ćurčić, Milica
AU  - Hadžić, Branka B.
AU  - Gilić, Martina
AU  - Radojević, Vesna
AU  - Bjelajac, Anđelika
AU  - Radović, Ivana M.
AU  - Timotijević, Dejan
AU  - Romčević, Maja J.
AU  - Trajić, Jelena
AU  - Romčević, Nebojša Ž.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8494
AB  - The polymer nanocomposite ZnS/Poly (methylmethacrylate) was prepared by the solution casting method and its structural and optical properties were investigated using XRD, SEM, TEM, HRTEM, and Raman spectroscopy. The basic material, ZnS, has the cubic structure and its crystallite size was estimated to be 2.3 nm, which implies that a strong confinement regime is in effect. Analysis of Raman spectra was performed using the fitting procedure based on effective medium theory. As a result, the surface optical phonon (SOP) mode was detected. It was found that the shape and position of the SOP mode depend on the type of the composite. © 2019 Elsevier B.V.
T2  - Physica E: Low-dimensional Systems and Nanostructures
T1  - Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites
VL  - 115
SP  - 113708
DO  - 10.1016/j.physe.2019.113708
ER  - 

@article{
author = "Ćurčić, Milica and Hadžić, Branka B. and Gilić, Martina and Radojević, Vesna and Bjelajac, Anđelika and Radović, Ivana M. and Timotijević, Dejan and Romčević, Maja J. and Trajić, Jelena and Romčević, Nebojša Ž.",
year = "2020",
abstract = "The polymer nanocomposite ZnS/Poly (methylmethacrylate) was prepared by the solution casting method and its structural and optical properties were investigated using XRD, SEM, TEM, HRTEM, and Raman spectroscopy. The basic material, ZnS, has the cubic structure and its crystallite size was estimated to be 2.3 nm, which implies that a strong confinement regime is in effect. Analysis of Raman spectra was performed using the fitting procedure based on effective medium theory. As a result, the surface optical phonon (SOP) mode was detected. It was found that the shape and position of the SOP mode depend on the type of the composite. © 2019 Elsevier B.V.",
journal = "Physica E: Low-dimensional Systems and Nanostructures",
title = "Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites",
volume = "115",
pages = "113708",
doi = "10.1016/j.physe.2019.113708"
}

Ćurčić, M., Hadžić, B. B., Gilić, M., Radojević, V., Bjelajac, A., Radović, I. M., Timotijević, D., Romčević, M. J., Trajić, J.,& Romčević, N. Ž.. (2020). Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites. in Physica E: Low-dimensional Systems and Nanostructures, 115, 113708.
https://doi.org/10.1016/j.physe.2019.113708

Ćurčić M, Hadžić BB, Gilić M, Radojević V, Bjelajac A, Radović IM, Timotijević D, Romčević MJ, Trajić J, Romčević NŽ. Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites. in Physica E: Low-dimensional Systems and Nanostructures. 2020;115:113708.
doi:10.1016/j.physe.2019.113708 .

Ćurčić, Milica, Hadžić, Branka B., Gilić, Martina, Radojević, Vesna, Bjelajac, Anđelika, Radović, Ivana M., Timotijević, Dejan, Romčević, Maja J., Trajić, Jelena, Romčević, Nebojša Ž., "Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites" in Physica E: Low-dimensional Systems and Nanostructures, 115 (2020):113708,
https://doi.org/10.1016/j.physe.2019.113708 . .

TY  - JOUR
AU  - Radisavljević, Ivana
AU  - Novaković, Nikola
AU  - Mahnke, Heinz-Eberhard
AU  - Andrić, Velibor
AU  - Kurko, Sandra V.
AU  - Milivojević, Dušan
AU  - Romčević, Nebojša Ž.
AU  - Ivanović, Nenad
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8004
AB  - Paper presents detailed studies of local and electronic structure around Fe in Cd0.97Fe0.03Te, Cd0.98Fe0.02Te0.97Se0.03 and Cd0.99Fe0.01Te0.91S0.09 multinary chalcogenides by means of X–ray absorption fine structure (XAFS), X–ray magnetic circular dichroism (XMCD) and electron paramagnetic resonance (EPR) measurements. In addition, electronic consequences of Fe incorporation into CdTe semiconductor host were studied by means of first principles calculations. In order to improve accuracy of the calculated total energies, the band gaps and the band edge positions, special attention is paid to the treatment of exchange–correlation interaction and the description of highly localized Fe 3d–states. Also, the Bader theory of the topological properties of the electron charge density is used to access details of the nature, strength and distribution of the (next) nearest neighbour bonds. Local and electronic structure around Fe in Cd0.97Fe0.03Te and Cd0.98Fe0.02Te0.97Se0.03 systems have been found to exhibit similar characteristics, since the first coordination sphere around Fe comprises four Te atoms located at approximately the same distance. In Cd0.99Fe0.01Te0.91S0.09 system, however, local bimodal distribution of distances has been revealed, with one Fe–Te bond replaced with much shorter Fe–S bond, resulting in much stronger crystal–field. Along with the crystal field effect, the spin–orbit interaction has proven to play decisive role in determining the nature of Fe doped CdTe systems. While the systems with higher Fe concentrations (25 at.%) are intrinsic insulators, in systems with only 3.125 at.% Fe one spin channel contributes to the density of states at the Fermi level, which makes them suitable for spin selective electronic transport applications. © 2018 Elsevier B.V.
T2  - Journal of Alloys and Compounds
T1  - Survey of electronic properties and local structures around Fe in selected multinary chalcogenides
VL  - 782
SP  - 160
EP  - 169
DO  - 10.1016/j.jallcom.2018.12.167
ER  - 

@article{
author = "Radisavljević, Ivana and Novaković, Nikola and Mahnke, Heinz-Eberhard and Andrić, Velibor and Kurko, Sandra V. and Milivojević, Dušan and Romčević, Nebojša Ž. and Ivanović, Nenad",
year = "2019",
abstract = "Paper presents detailed studies of local and electronic structure around Fe in Cd0.97Fe0.03Te, Cd0.98Fe0.02Te0.97Se0.03 and Cd0.99Fe0.01Te0.91S0.09 multinary chalcogenides by means of X–ray absorption fine structure (XAFS), X–ray magnetic circular dichroism (XMCD) and electron paramagnetic resonance (EPR) measurements. In addition, electronic consequences of Fe incorporation into CdTe semiconductor host were studied by means of first principles calculations. In order to improve accuracy of the calculated total energies, the band gaps and the band edge positions, special attention is paid to the treatment of exchange–correlation interaction and the description of highly localized Fe 3d–states. Also, the Bader theory of the topological properties of the electron charge density is used to access details of the nature, strength and distribution of the (next) nearest neighbour bonds. Local and electronic structure around Fe in Cd0.97Fe0.03Te and Cd0.98Fe0.02Te0.97Se0.03 systems have been found to exhibit similar characteristics, since the first coordination sphere around Fe comprises four Te atoms located at approximately the same distance. In Cd0.99Fe0.01Te0.91S0.09 system, however, local bimodal distribution of distances has been revealed, with one Fe–Te bond replaced with much shorter Fe–S bond, resulting in much stronger crystal–field. Along with the crystal field effect, the spin–orbit interaction has proven to play decisive role in determining the nature of Fe doped CdTe systems. While the systems with higher Fe concentrations (25 at.%) are intrinsic insulators, in systems with only 3.125 at.% Fe one spin channel contributes to the density of states at the Fermi level, which makes them suitable for spin selective electronic transport applications. © 2018 Elsevier B.V.",
journal = "Journal of Alloys and Compounds",
title = "Survey of electronic properties and local structures around Fe in selected multinary chalcogenides",
volume = "782",
pages = "160-169",
doi = "10.1016/j.jallcom.2018.12.167"
}

Radisavljević, I., Novaković, N., Mahnke, H., Andrić, V., Kurko, S. V., Milivojević, D., Romčević, N. Ž.,& Ivanović, N.. (2019). Survey of electronic properties and local structures around Fe in selected multinary chalcogenides. in Journal of Alloys and Compounds, 782, 160-169.
https://doi.org/10.1016/j.jallcom.2018.12.167

Radisavljević I, Novaković N, Mahnke H, Andrić V, Kurko SV, Milivojević D, Romčević NŽ, Ivanović N. Survey of electronic properties and local structures around Fe in selected multinary chalcogenides. in Journal of Alloys and Compounds. 2019;782:160-169.
doi:10.1016/j.jallcom.2018.12.167 .

Radisavljević, Ivana, Novaković, Nikola, Mahnke, Heinz-Eberhard, Andrić, Velibor, Kurko, Sandra V., Milivojević, Dušan, Romčević, Nebojša Ž., Ivanović, Nenad, "Survey of electronic properties and local structures around Fe in selected multinary chalcogenides" in Journal of Alloys and Compounds, 782 (2019):160-169,
https://doi.org/10.1016/j.jallcom.2018.12.167 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Križan, Gregor
AU  - Križan, Janez
AU  - Mitrić, Miodrag
AU  - Paunović, Novica M.
AU  - Milutinović, Aleksandra N.
AU  - Romčević, Nebojša Ž.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8437
AB  - Lithium iron phosphate (LiFePO4) are synthesized in complete and incomplete combustion and calcined at 700°C. The obtained samples were characterized by XRD, IR spectroscopy and magnetic measurement. Morphology of samples was controlled by SEM. The aim of this work is to show that it is possible to achieve a desired crystal phase by pulse combustion in a relatively cheap and fast way. The extremely rapid synthesis of almost pure phase material is possible due to the reduction in size of interacting particles and to an enormous number of collisions between them as a result of the strong turbulent flow associated with explosive combustion. © 2019 Optoelectronics and Advanced Materials, Rapid Communications. All rights reserved.
T2  - Optoelectronics and Advanced Materials, Rapid Communications
T1  - Synthesis and spectroscopic characterisation of LiFePO4 cathode materials
VL  - 13
IS  - 3-4
SP  - 228
EP  - 234
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8437
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Križan, Gregor and Križan, Janez and Mitrić, Miodrag and Paunović, Novica M. and Milutinović, Aleksandra N. and Romčević, Nebojša Ž.",
year = "2019",
abstract = "Lithium iron phosphate (LiFePO4) are synthesized in complete and incomplete combustion and calcined at 700°C. The obtained samples were characterized by XRD, IR spectroscopy and magnetic measurement. Morphology of samples was controlled by SEM. The aim of this work is to show that it is possible to achieve a desired crystal phase by pulse combustion in a relatively cheap and fast way. The extremely rapid synthesis of almost pure phase material is possible due to the reduction in size of interacting particles and to an enormous number of collisions between them as a result of the strong turbulent flow associated with explosive combustion. © 2019 Optoelectronics and Advanced Materials, Rapid Communications. All rights reserved.",
journal = "Optoelectronics and Advanced Materials, Rapid Communications",
title = "Synthesis and spectroscopic characterisation of LiFePO4 cathode materials",
volume = "13",
number = "3-4",
pages = "228-234",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8437"
}

Lazarević, Z. Ž., Križan, G., Križan, J., Mitrić, M., Paunović, N. M., Milutinović, A. N.,& Romčević, N. Ž.. (2019). Synthesis and spectroscopic characterisation of LiFePO4 cathode materials. in Optoelectronics and Advanced Materials, Rapid Communications, 13(3-4), 228-234.
https://hdl.handle.net/21.15107/rcub_vinar_8437

Lazarević ZŽ, Križan G, Križan J, Mitrić M, Paunović NM, Milutinović AN, Romčević NŽ. Synthesis and spectroscopic characterisation of LiFePO4 cathode materials. in Optoelectronics and Advanced Materials, Rapid Communications. 2019;13(3-4):228-234.
https://hdl.handle.net/21.15107/rcub_vinar_8437 .

Lazarević, Zorica Ž., Križan, Gregor, Križan, Janez, Mitrić, Miodrag, Paunović, Novica M., Milutinović, Aleksandra N., Romčević, Nebojša Ž., "Synthesis and spectroscopic characterisation of LiFePO4 cathode materials" in Optoelectronics and Advanced Materials, Rapid Communications, 13, no. 3-4 (2019):228-234,
https://hdl.handle.net/21.15107/rcub_vinar_8437 .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Križan, Gregor
AU  - Križan, Janez
AU  - Milutinović, Aleksandra N.
AU  - Ivanovski, Valentin N.
AU  - Mitrić, Miodrag
AU  - Gilić, Martina
AU  - Umićević, Ana
AU  - Kuryliszyn-Kudelska, Izabela
AU  - Romčević, Nebojša Ž.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8501
AB  - Lithium iron phosphate (LiFePO4, LFP) is one of the widely used cathode materials for rechargeable lithium ion batteries. LFP batteries are widely used for electric vehicles and backup power due to their important advantages such as low cost, lifetime, efficiency, and reliability. There are still several technical challenges that need to be addressed: The increase of energy density or further reduction of their final cost. This paper concerned with the characterization of carbon coated LiFePO4 nanopowder cathode materials produced under different conditions by pulse combustion for providing energy to the reactor for the synthesis. The reactor was built according to the principles of the thermoacoustic burner on the basis of the Helmholtz resonator. The investigated nanopowders are synthesized by complete and incomplete combustion and calcined at 700 °C. The obtained samples were characterized by X-ray diffraction, Fourier transform infrared, Raman, and Mössbauer spectroscopy. Observed low-Temperature magnetic phase transitions definitively identified the crystal phases. The morphology of samples was controlled by scanning electron microscopy. The aim of this work is to show that it is possible to achieve a desired crystal phase by pulse combustion in a relatively cheap and fast way. The extremely rapid synthesis of almost pure phase material is possible due to the reduction in size of interacting particles and to an enormous number of collisions between them as a result of strong turbulent flow associated with explosive combustion. © 2019 Author(s).
T2  - Journal of Applied Physics
T1  - Characterization of LiFePO4 samples obtained by pulse combustion under various conditions of synthesis
VL  - 126
IS  - 8
SP  - 085109
DO  - 10.1063/1.5100358
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Križan, Gregor and Križan, Janez and Milutinović, Aleksandra N. and Ivanovski, Valentin N. and Mitrić, Miodrag and Gilić, Martina and Umićević, Ana and Kuryliszyn-Kudelska, Izabela and Romčević, Nebojša Ž.",
year = "2019",
abstract = "Lithium iron phosphate (LiFePO4, LFP) is one of the widely used cathode materials for rechargeable lithium ion batteries. LFP batteries are widely used for electric vehicles and backup power due to their important advantages such as low cost, lifetime, efficiency, and reliability. There are still several technical challenges that need to be addressed: The increase of energy density or further reduction of their final cost. This paper concerned with the characterization of carbon coated LiFePO4 nanopowder cathode materials produced under different conditions by pulse combustion for providing energy to the reactor for the synthesis. The reactor was built according to the principles of the thermoacoustic burner on the basis of the Helmholtz resonator. The investigated nanopowders are synthesized by complete and incomplete combustion and calcined at 700 °C. The obtained samples were characterized by X-ray diffraction, Fourier transform infrared, Raman, and Mössbauer spectroscopy. Observed low-Temperature magnetic phase transitions definitively identified the crystal phases. The morphology of samples was controlled by scanning electron microscopy. The aim of this work is to show that it is possible to achieve a desired crystal phase by pulse combustion in a relatively cheap and fast way. The extremely rapid synthesis of almost pure phase material is possible due to the reduction in size of interacting particles and to an enormous number of collisions between them as a result of strong turbulent flow associated with explosive combustion. © 2019 Author(s).",
journal = "Journal of Applied Physics",
title = "Characterization of LiFePO4 samples obtained by pulse combustion under various conditions of synthesis",
volume = "126",
number = "8",
pages = "085109",
doi = "10.1063/1.5100358"
}

Lazarević, Z. Ž., Križan, G., Križan, J., Milutinović, A. N., Ivanovski, V. N., Mitrić, M., Gilić, M., Umićević, A., Kuryliszyn-Kudelska, I.,& Romčević, N. Ž.. (2019). Characterization of LiFePO4 samples obtained by pulse combustion under various conditions of synthesis. in Journal of Applied Physics, 126(8), 085109.
https://doi.org/10.1063/1.5100358

Lazarević ZŽ, Križan G, Križan J, Milutinović AN, Ivanovski VN, Mitrić M, Gilić M, Umićević A, Kuryliszyn-Kudelska I, Romčević NŽ. Characterization of LiFePO4 samples obtained by pulse combustion under various conditions of synthesis. in Journal of Applied Physics. 2019;126(8):085109.
doi:10.1063/1.5100358 .

Lazarević, Zorica Ž., Križan, Gregor, Križan, Janez, Milutinović, Aleksandra N., Ivanovski, Valentin N., Mitrić, Miodrag, Gilić, Martina, Umićević, Ana, Kuryliszyn-Kudelska, Izabela, Romčević, Nebojša Ž., "Characterization of LiFePO4 samples obtained by pulse combustion under various conditions of synthesis" in Journal of Applied Physics, 126, no. 8 (2019):085109,
https://doi.org/10.1063/1.5100358 . .

TY  - JOUR
AU  - Mitrić, Jelena
AU  - Ralević, Uroš
AU  - Mitrić, Miodrag
AU  - Ćirković, Jovana
AU  - Križan, Gregor
AU  - Romčević, Maja J.
AU  - Gilić, Martina
AU  - Romčević, Nebojša Ž.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8555
AB  - In this paper, we describe synthesis and characterization of YVO 4 and Eu 3+ -doped YVO 4 nanopowders. Two methods of preparation were used—solution combustion synthesis (SCS) and classical ceramic method (CCM)—and compared. Morphology and structure of all samples were characterized with atomic-force microscopy (AFM), X-ray diffraction (XRD), and field-emission scanning electron microscopy (SEM). Raman spectroscopy was used to discuss the isotope-like effect. It is confirmed that doping with Eu ions results in a change of Raman spectra of doped samples—new modes arise, and intensity of existing ones change. Influence of different preparation methods on isotope-like effect is presented with detailed calculations of shifted modes. © 2019 John Wiley & Sons, Ltd.
T2  - Journal of Raman Spectroscopy
T1  - Isotope-like effect in YVO4:Eu3+ nanopowders: Raman spectroscopy
VL  - 50
IS  - 6
SP  - 802
EP  - 808
DO  - 10.1002/jrs.5584
ER  - 

@article{
author = "Mitrić, Jelena and Ralević, Uroš and Mitrić, Miodrag and Ćirković, Jovana and Križan, Gregor and Romčević, Maja J. and Gilić, Martina and Romčević, Nebojša Ž.",
year = "2019",
abstract = "In this paper, we describe synthesis and characterization of YVO 4 and Eu 3+ -doped YVO 4 nanopowders. Two methods of preparation were used—solution combustion synthesis (SCS) and classical ceramic method (CCM)—and compared. Morphology and structure of all samples were characterized with atomic-force microscopy (AFM), X-ray diffraction (XRD), and field-emission scanning electron microscopy (SEM). Raman spectroscopy was used to discuss the isotope-like effect. It is confirmed that doping with Eu ions results in a change of Raman spectra of doped samples—new modes arise, and intensity of existing ones change. Influence of different preparation methods on isotope-like effect is presented with detailed calculations of shifted modes. © 2019 John Wiley & Sons, Ltd.",
journal = "Journal of Raman Spectroscopy",
title = "Isotope-like effect in YVO4:Eu3+ nanopowders: Raman spectroscopy",
volume = "50",
number = "6",
pages = "802-808",
doi = "10.1002/jrs.5584"
}

Mitrić, J., Ralević, U., Mitrić, M., Ćirković, J., Križan, G., Romčević, M. J., Gilić, M.,& Romčević, N. Ž.. (2019). Isotope-like effect in YVO4:Eu3+ nanopowders: Raman spectroscopy. in Journal of Raman Spectroscopy, 50(6), 802-808.
https://doi.org/10.1002/jrs.5584

Mitrić J, Ralević U, Mitrić M, Ćirković J, Križan G, Romčević MJ, Gilić M, Romčević NŽ. Isotope-like effect in YVO4:Eu3+ nanopowders: Raman spectroscopy. in Journal of Raman Spectroscopy. 2019;50(6):802-808.
doi:10.1002/jrs.5584 .

Mitrić, Jelena, Ralević, Uroš, Mitrić, Miodrag, Ćirković, Jovana, Križan, Gregor, Romčević, Maja J., Gilić, Martina, Romčević, Nebojša Ž., "Isotope-like effect in YVO4:Eu3+ nanopowders: Raman spectroscopy" in Journal of Raman Spectroscopy, 50, no. 6 (2019):802-808,
https://doi.org/10.1002/jrs.5584 . .

TY  - JOUR
AU  - Abozaid, Rouaida Mohamed
AU  - Lazarević, Zorica Ž.
AU  - Radović, Ivana M.
AU  - Gilić, Martina
AU  - Šević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Radojević, Vesna
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0925346719303131
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8195
AB  - Processing and characterization of polymer nanocomposites based on poly (methyl methacrylate) (PMMA) matrix with embedded core-shell CdSe/ZnS quantum dots (QD's) were presented in this work. The aim is to preserve the optical activity of QD's in nanocomposite processing with improved mechanical properties. The modification of QD's CdSe/ZnS-PMMA interface was achieved with 3-mercaptopropyltrimethoxysilane (MPTMS). Nanocomposites were processed by solution casting. The samples of pure PMMA, and composites with unmodified and silane modified QD's CdSe/ZnS were processed. FTIR analysis revealed modification of QD's with silane and characteristic bonding with PMMA matrix. Raman spectrum confirms a presence of alloyed layer at the core-shell interface. Time-resolved laser induced fluorescence measurements confirmed slight blue shift in QD's CdSe/ZnS-PMMA composite without interface modification, while there was a slight red shift with modified particles. Oxidation effects in quantum dots were removed with the use of PMMA as a host, and the core remained active, which was confirmed with FTIR analysis and time-resolved laser induced fluorescence measurements. © 2019
T2  - Optical Materials
T1  - Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications
VL  - 92
SP  - 405
EP  - 410
DO  - 10.1016/j.optmat.2019.05.012
ER  - 

@article{
author = "Abozaid, Rouaida Mohamed and Lazarević, Zorica Ž. and Radović, Ivana M. and Gilić, Martina and Šević, Dragutin M. and Rabasović, Maja S. and Radojević, Vesna",
year = "2019",
abstract = "Processing and characterization of polymer nanocomposites based on poly (methyl methacrylate) (PMMA) matrix with embedded core-shell CdSe/ZnS quantum dots (QD's) were presented in this work. The aim is to preserve the optical activity of QD's in nanocomposite processing with improved mechanical properties. The modification of QD's CdSe/ZnS-PMMA interface was achieved with 3-mercaptopropyltrimethoxysilane (MPTMS). Nanocomposites were processed by solution casting. The samples of pure PMMA, and composites with unmodified and silane modified QD's CdSe/ZnS were processed. FTIR analysis revealed modification of QD's with silane and characteristic bonding with PMMA matrix. Raman spectrum confirms a presence of alloyed layer at the core-shell interface. Time-resolved laser induced fluorescence measurements confirmed slight blue shift in QD's CdSe/ZnS-PMMA composite without interface modification, while there was a slight red shift with modified particles. Oxidation effects in quantum dots were removed with the use of PMMA as a host, and the core remained active, which was confirmed with FTIR analysis and time-resolved laser induced fluorescence measurements. © 2019",
journal = "Optical Materials",
title = "Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications",
volume = "92",
pages = "405-410",
doi = "10.1016/j.optmat.2019.05.012"
}

Abozaid, R. M., Lazarević, Z. Ž., Radović, I. M., Gilić, M., Šević, D. M., Rabasović, M. S.,& Radojević, V.. (2019). Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications. in Optical Materials, 92, 405-410.
https://doi.org/10.1016/j.optmat.2019.05.012

Abozaid RM, Lazarević ZŽ, Radović IM, Gilić M, Šević DM, Rabasović MS, Radojević V. Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications. in Optical Materials. 2019;92:405-410.
doi:10.1016/j.optmat.2019.05.012 .

Abozaid, Rouaida Mohamed, Lazarević, Zorica Ž., Radović, Ivana M., Gilić, Martina, Šević, Dragutin M., Rabasović, Maja S., Radojević, Vesna, "Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications" in Optical Materials, 92 (2019):405-410,
https://doi.org/10.1016/j.optmat.2019.05.012 . .

TY  - JOUR
AU  - Kuzmanović, Bojana
AU  - Vujković, Milica
AU  - Tomić, Nataša M.
AU  - Bajuk-Bogdanović, Danica V.
AU  - Lazović, Vladimir M.
AU  - Šljukić, Biljana
AU  - Ivanović, Nenad
AU  - Mentus, Slavko V.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0013468619305584
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8135
AB  - Cerium oxide (CeO 2-δ ) ultrafine nanoparticles, with the lower (CeO 2-δ -HT) and higher (CeO 2-δ -SS) fraction of oxygen vacancies, were used as anchoring sites for the polymerization of aniline in acidic medium. As a result, polyaniline-emeraldine salt (PANI-ES)-based composites (PANI-ES@CeO 2-δ -HT and PANI-ES@CeO 2-δ -SS) were obtained. The interaction between CeO 2-δ and PANI was examined by FTIR and Raman spectroscopy. The PANI polymerization is initiated via electrostatic interaction of anilinium cation and Cl − ions (adsorbed at the protonated hydroxyl groups of CeO 2-δ ), and proceeds with hydrogen and nitrogen interaction with oxide nanoparticles. Tailoring the oxygen vacancy population of oxide offers the possibility to control the type of PANI-cerium oxide interaction, and consequently structural, electrical, thermal, electronic and charge storage properties of composite. A high capacitance of synthesized materials, reaching ∼294 F g −1 (PANI-ES), ∼299 F g −1 (PANI-ES@CeO 2-δ -HT) and ∼314 F g −1 (PANI-ES@CeO 2-δ -SS), was measured in 1 M HCl, at a common scan rate of 20 mV s −1 . The high adhesion of PANI with cerium oxide prevents the oxide from its slow dissolution in 1MHCl thus providing the stability of this composite in an acidic solution. The rate of electrochemical oxidation of emeraldine salt into pernigraniline was also found to depend on CeO 2-δ characteristics. © 2019 Elsevier Ltd
T2  - Electrochimica Acta
T1  - The influence of oxygen vacancy concentration in nanodispersed non-stoichiometric CeO2-δ oxides on the physico-chemical properties of conducting polyaniline/CeO2 composites
VL  - 306
SP  - 506
EP  - 515
DO  - 10.1016/j.electacta.2019.03.135
ER  - 

@article{
author = "Kuzmanović, Bojana and Vujković, Milica and Tomić, Nataša M. and Bajuk-Bogdanović, Danica V. and Lazović, Vladimir M. and Šljukić, Biljana and Ivanović, Nenad and Mentus, Slavko V.",
year = "2019",
abstract = "Cerium oxide (CeO 2-δ ) ultrafine nanoparticles, with the lower (CeO 2-δ -HT) and higher (CeO 2-δ -SS) fraction of oxygen vacancies, were used as anchoring sites for the polymerization of aniline in acidic medium. As a result, polyaniline-emeraldine salt (PANI-ES)-based composites (PANI-ES@CeO 2-δ -HT and PANI-ES@CeO 2-δ -SS) were obtained. The interaction between CeO 2-δ and PANI was examined by FTIR and Raman spectroscopy. The PANI polymerization is initiated via electrostatic interaction of anilinium cation and Cl − ions (adsorbed at the protonated hydroxyl groups of CeO 2-δ ), and proceeds with hydrogen and nitrogen interaction with oxide nanoparticles. Tailoring the oxygen vacancy population of oxide offers the possibility to control the type of PANI-cerium oxide interaction, and consequently structural, electrical, thermal, electronic and charge storage properties of composite. A high capacitance of synthesized materials, reaching ∼294 F g −1 (PANI-ES), ∼299 F g −1 (PANI-ES@CeO 2-δ -HT) and ∼314 F g −1 (PANI-ES@CeO 2-δ -SS), was measured in 1 M HCl, at a common scan rate of 20 mV s −1 . The high adhesion of PANI with cerium oxide prevents the oxide from its slow dissolution in 1MHCl thus providing the stability of this composite in an acidic solution. The rate of electrochemical oxidation of emeraldine salt into pernigraniline was also found to depend on CeO 2-δ characteristics. © 2019 Elsevier Ltd",
journal = "Electrochimica Acta",
title = "The influence of oxygen vacancy concentration in nanodispersed non-stoichiometric CeO2-δ oxides on the physico-chemical properties of conducting polyaniline/CeO2 composites",
volume = "306",
pages = "506-515",
doi = "10.1016/j.electacta.2019.03.135"
}

Kuzmanović, B., Vujković, M., Tomić, N. M., Bajuk-Bogdanović, D. V., Lazović, V. M., Šljukić, B., Ivanović, N.,& Mentus, S. V.. (2019). The influence of oxygen vacancy concentration in nanodispersed non-stoichiometric CeO2-δ oxides on the physico-chemical properties of conducting polyaniline/CeO2 composites. in Electrochimica Acta, 306, 506-515.
https://doi.org/10.1016/j.electacta.2019.03.135

Kuzmanović B, Vujković M, Tomić NM, Bajuk-Bogdanović DV, Lazović VM, Šljukić B, Ivanović N, Mentus SV. The influence of oxygen vacancy concentration in nanodispersed non-stoichiometric CeO2-δ oxides on the physico-chemical properties of conducting polyaniline/CeO2 composites. in Electrochimica Acta. 2019;306:506-515.
doi:10.1016/j.electacta.2019.03.135 .

Kuzmanović, Bojana, Vujković, Milica, Tomić, Nataša M., Bajuk-Bogdanović, Danica V., Lazović, Vladimir M., Šljukić, Biljana, Ivanović, Nenad, Mentus, Slavko V., "The influence of oxygen vacancy concentration in nanodispersed non-stoichiometric CeO2-δ oxides on the physico-chemical properties of conducting polyaniline/CeO2 composites" in Electrochimica Acta, 306 (2019):506-515,
https://doi.org/10.1016/j.electacta.2019.03.135 . .

TY  - JOUR
AU  - Bundaleski, Nenad
AU  - Radisavljević, Ivana
AU  - Ivanović, Nenad
AU  - Rakočević, Zlatko Lj.
AU  - Medić-Ilić, Mirjana
AU  - Tadić, Julijana D.
AU  - Teodoro, Orlando M. N. D.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0039602818307611
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7977
AB  - Local structural and electronic properties around Fe in multi-component Cd0.99Fe0.01Te0.97S0.03 system were studied by means of X-ray absorption fine structure (XAFS). Composition of non-polar (110) surfaces of Cd0.97Fe0.03Te and Cd0.99Fe0.01Te0.97S0.03 systems and mechanism of their oxidation in ambient conditions were studied by Atomic Force Microscopy (AFM) and X-ray Photoelectron Spectroscopy (XPS). It has been found that Fe preferentially substitutes Cd, but due to much smaller covalent radius and preferences for paring with S, it causes local distortion of the host CdTe lattice. The distortion is confined to the Fe-immediate surrounding and the second and third coordination shell atoms are (inside experimental uncertainties) placed at distances expected in CdTe. Although local structure around Fe is well defined in the bulk of both samples, their near-surface region is completely depleted from Fe, and in case of Cd0.99Fe0.01Te0.97S0.03 somewhat enriched in S. Special attention is, therefore, paid to characterization of the near-surface region and evaluation of its composition and structure. To that end we have introduced a general standard-free algorithm for XPS data analysis of the two-layer surface structure (bulk, oxide layer, and the impurity layer). Results of the in-depth composition analysis revealed that despite different bulk composition and impurity layer thickness, underneath the topmost impurity layer lays approximately one monolayer of CdTeO3 which passivates the surface. © 2018 Elsevier B.V.
T2  - Surface Science
T1  - Local, electronic and surface structure of multi-component Fe-doped CdTe(S) systems
VL  - 681
SP  - 76
EP  - 86
DO  - 10.1016/j.susc.2018.11.007
ER  - 

@article{
author = "Bundaleski, Nenad and Radisavljević, Ivana and Ivanović, Nenad and Rakočević, Zlatko Lj. and Medić-Ilić, Mirjana and Tadić, Julijana D. and Teodoro, Orlando M. N. D.",
year = "2019",
abstract = "Local structural and electronic properties around Fe in multi-component Cd0.99Fe0.01Te0.97S0.03 system were studied by means of X-ray absorption fine structure (XAFS). Composition of non-polar (110) surfaces of Cd0.97Fe0.03Te and Cd0.99Fe0.01Te0.97S0.03 systems and mechanism of their oxidation in ambient conditions were studied by Atomic Force Microscopy (AFM) and X-ray Photoelectron Spectroscopy (XPS). It has been found that Fe preferentially substitutes Cd, but due to much smaller covalent radius and preferences for paring with S, it causes local distortion of the host CdTe lattice. The distortion is confined to the Fe-immediate surrounding and the second and third coordination shell atoms are (inside experimental uncertainties) placed at distances expected in CdTe. Although local structure around Fe is well defined in the bulk of both samples, their near-surface region is completely depleted from Fe, and in case of Cd0.99Fe0.01Te0.97S0.03 somewhat enriched in S. Special attention is, therefore, paid to characterization of the near-surface region and evaluation of its composition and structure. To that end we have introduced a general standard-free algorithm for XPS data analysis of the two-layer surface structure (bulk, oxide layer, and the impurity layer). Results of the in-depth composition analysis revealed that despite different bulk composition and impurity layer thickness, underneath the topmost impurity layer lays approximately one monolayer of CdTeO3 which passivates the surface. © 2018 Elsevier B.V.",
journal = "Surface Science",
title = "Local, electronic and surface structure of multi-component Fe-doped CdTe(S) systems",
volume = "681",
pages = "76-86",
doi = "10.1016/j.susc.2018.11.007"
}

Bundaleski, N., Radisavljević, I., Ivanović, N., Rakočević, Z. Lj., Medić-Ilić, M., Tadić, J. D.,& Teodoro, O. M. N. D.. (2019). Local, electronic and surface structure of multi-component Fe-doped CdTe(S) systems. in Surface Science, 681, 76-86.
https://doi.org/10.1016/j.susc.2018.11.007

Bundaleski N, Radisavljević I, Ivanović N, Rakočević ZL, Medić-Ilić M, Tadić JD, Teodoro OMND. Local, electronic and surface structure of multi-component Fe-doped CdTe(S) systems. in Surface Science. 2019;681:76-86.
doi:10.1016/j.susc.2018.11.007 .

Bundaleski, Nenad, Radisavljević, Ivana, Ivanović, Nenad, Rakočević, Zlatko Lj., Medić-Ilić, Mirjana, Tadić, Julijana D., Teodoro, Orlando M. N. D., "Local, electronic and surface structure of multi-component Fe-doped CdTe(S) systems" in Surface Science, 681 (2019):76-86,
https://doi.org/10.1016/j.susc.2018.11.007 . .

TY  - JOUR
AU  - Topalović, Dušan
AU  - Arsoski, Vladimir
AU  - Tadić, Milan Ž.
AU  - Peeters, François M.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8534
AB  - We investigate the electron states and optical absorption in square- and hexagonal-shaped two-dimensional (2D) HgTe quantum dots and quantum rings in the presence of a perpendicular magnetic field. The electronic structure is modeled by means of the sp3d5s∗ tight-binding method within the nearest-neighbor approximation. Both bulklike and edge states appear in the energy spectrum. The bulklike states in quantum rings exhibit Aharonov-Bohm oscillations in magnetic field, whereas no such oscillations are found in quantum dots, which is ascribed to the different topology of the two systems. When magnetic field varies, all the edge states in square quantum dots appear as quasibands composed of almost fully flat levels, whereas some edge states in quantum rings are found to oscillate with magnetic field. However, the edge states in hexagonal quantum dots are localized like in rings. The absorption spectra of all the structures consist of numerous absorption lines, which substantially overlap even for small line broadening. The absorption lines in the infrared are found to originate from transitions between edge states. It is shown that the magnetic field can be used to efficiently tune the optical absorption of HgTe 2D quantum dot and quantum ring systems. © 2019 American Physical Society.
T2  - Physical Review B
T1  - Confined electron states in two-dimensional HgTe in magnetic field: Quantum dot versus quantum ring behavior
VL  - 100
IS  - 12
SP  - 125304
DO  - 10.1103/PhysRevB.100.125304
ER  - 

@article{
author = "Topalović, Dušan and Arsoski, Vladimir and Tadić, Milan Ž. and Peeters, François M.",
year = "2019",
abstract = "We investigate the electron states and optical absorption in square- and hexagonal-shaped two-dimensional (2D) HgTe quantum dots and quantum rings in the presence of a perpendicular magnetic field. The electronic structure is modeled by means of the sp3d5s∗ tight-binding method within the nearest-neighbor approximation. Both bulklike and edge states appear in the energy spectrum. The bulklike states in quantum rings exhibit Aharonov-Bohm oscillations in magnetic field, whereas no such oscillations are found in quantum dots, which is ascribed to the different topology of the two systems. When magnetic field varies, all the edge states in square quantum dots appear as quasibands composed of almost fully flat levels, whereas some edge states in quantum rings are found to oscillate with magnetic field. However, the edge states in hexagonal quantum dots are localized like in rings. The absorption spectra of all the structures consist of numerous absorption lines, which substantially overlap even for small line broadening. The absorption lines in the infrared are found to originate from transitions between edge states. It is shown that the magnetic field can be used to efficiently tune the optical absorption of HgTe 2D quantum dot and quantum ring systems. © 2019 American Physical Society.",
journal = "Physical Review B",
title = "Confined electron states in two-dimensional HgTe in magnetic field: Quantum dot versus quantum ring behavior",
volume = "100",
number = "12",
pages = "125304",
doi = "10.1103/PhysRevB.100.125304"
}

Topalović, D., Arsoski, V., Tadić, M. Ž.,& Peeters, F. M.. (2019). Confined electron states in two-dimensional HgTe in magnetic field: Quantum dot versus quantum ring behavior. in Physical Review B, 100(12), 125304.
https://doi.org/10.1103/PhysRevB.100.125304

Topalović D, Arsoski V, Tadić MŽ, Peeters FM. Confined electron states in two-dimensional HgTe in magnetic field: Quantum dot versus quantum ring behavior. in Physical Review B. 2019;100(12):125304.
doi:10.1103/PhysRevB.100.125304 .

Topalović, Dušan, Arsoski, Vladimir, Tadić, Milan Ž., Peeters, François M., "Confined electron states in two-dimensional HgTe in magnetic field: Quantum dot versus quantum ring behavior" in Physical Review B, 100, no. 12 (2019):125304,
https://doi.org/10.1103/PhysRevB.100.125304 . .

TY  - JOUR
AU  - Kuzmanović, Bojana
AU  - Ostojić, Stanko
AU  - Radisavljević, Ivana
AU  - Minić, Dragica M.
AU  - Ivanović, Nenad
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0379677919300736
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8136
AB  - In spite of extensive investigation and applications, influence of oxygen (O), and humidity on polyaniline (PANI) behaviour is not well understood. For this reason we have performed semi-empirical quantum mechanics, and ab-initio calculations of the pernigraniline base (PNB) PANI oligomers, of various lengths, before and after approach of H 2 O, O 2 , and hydroxyl (OH − ) group, and attachment of OH − and O to various molecular positions. Structure, charge and electrostatic potential distribution, relevant energies and enthalpies, infrared and electronic spectra of the PNB tetramer equilibrium conformation, and their changes induced by specific OH − , and O attachments are determined. These results provide identification of the most probable positions for O 2 and H 2 O approach to PNB_PANI, enthalpies of OH − and O attachments to them, changes of molecular properties induced by the attachments, and infrared and electronic modes that are most suitable for the attachments detection. The results are compared to the existing experimental data, and the results of similar calculations, and implications for the PNB_PANI applications are notified. © 2019 Elsevier B.V.
T2  - Synthetic Metals
T1  - Calculations of oxygen and humidity influence on properties of pernigraniline base polyaniline oligomers
VL  - 251
SP  - 85
EP  - 94
DO  - 10.1016/j.synthmet.2019.03.014
ER  - 

@article{
author = "Kuzmanović, Bojana and Ostojić, Stanko and Radisavljević, Ivana and Minić, Dragica M. and Ivanović, Nenad",
year = "2019",
abstract = "In spite of extensive investigation and applications, influence of oxygen (O), and humidity on polyaniline (PANI) behaviour is not well understood. For this reason we have performed semi-empirical quantum mechanics, and ab-initio calculations of the pernigraniline base (PNB) PANI oligomers, of various lengths, before and after approach of H 2 O, O 2 , and hydroxyl (OH − ) group, and attachment of OH − and O to various molecular positions. Structure, charge and electrostatic potential distribution, relevant energies and enthalpies, infrared and electronic spectra of the PNB tetramer equilibrium conformation, and their changes induced by specific OH − , and O attachments are determined. These results provide identification of the most probable positions for O 2 and H 2 O approach to PNB_PANI, enthalpies of OH − and O attachments to them, changes of molecular properties induced by the attachments, and infrared and electronic modes that are most suitable for the attachments detection. The results are compared to the existing experimental data, and the results of similar calculations, and implications for the PNB_PANI applications are notified. © 2019 Elsevier B.V.",
journal = "Synthetic Metals",
title = "Calculations of oxygen and humidity influence on properties of pernigraniline base polyaniline oligomers",
volume = "251",
pages = "85-94",
doi = "10.1016/j.synthmet.2019.03.014"
}

Kuzmanović, B., Ostojić, S., Radisavljević, I., Minić, D. M.,& Ivanović, N.. (2019). Calculations of oxygen and humidity influence on properties of pernigraniline base polyaniline oligomers. in Synthetic Metals, 251, 85-94.
https://doi.org/10.1016/j.synthmet.2019.03.014

Kuzmanović B, Ostojić S, Radisavljević I, Minić DM, Ivanović N. Calculations of oxygen and humidity influence on properties of pernigraniline base polyaniline oligomers. in Synthetic Metals. 2019;251:85-94.
doi:10.1016/j.synthmet.2019.03.014 .

Kuzmanović, Bojana, Ostojić, Stanko, Radisavljević, Ivana, Minić, Dragica M., Ivanović, Nenad, "Calculations of oxygen and humidity influence on properties of pernigraniline base polyaniline oligomers" in Synthetic Metals, 251 (2019):85-94,
https://doi.org/10.1016/j.synthmet.2019.03.014 . .

TY  - JOUR
AU  - Hadžić, Branka B.
AU  - Vasić, Borislav Z.
AU  - Matović, Branko
AU  - Kuryliszyn-Kudelska, Izabela
AU  - Dobrowolski, Witold D.
AU  - Romčević, Maja J.
AU  - Romčević, Nebojša Ž.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7778
AB  - The phase changes of MnO nanoparticles under laser-induced heating have been studied. Previous confirmation of the existence of MnO phase was based on the X-ray diffraction measurements. Here, we report the experimental spectra of nonresonant Raman scattering in the range between 100 and 1,600cm(-1), for a sample irradiated with 8 different laser powers. The laser-induced heating has produced change in existing phases in sample, destruction of MnO phase, and creation of MnO2, Mn3O4, and MnOOH phases along with formation of Mn2+ on the sample surface. These phase changes have been confirmed by X-ray diffraction and atomic force microscopy measurements.
T2  - Journal of Raman Spectroscopy
T1  - Influence of laser-induced heating on MnO nanoparticles
VL  - 49
IS  - 5
SP  - 817
EP  - 821
DO  - 10.1002/jrs.5358
ER  - 

@article{
author = "Hadžić, Branka B. and Vasić, Borislav Z. and Matović, Branko and Kuryliszyn-Kudelska, Izabela and Dobrowolski, Witold D. and Romčević, Maja J. and Romčević, Nebojša Ž.",
year = "2018",
abstract = "The phase changes of MnO nanoparticles under laser-induced heating have been studied. Previous confirmation of the existence of MnO phase was based on the X-ray diffraction measurements. Here, we report the experimental spectra of nonresonant Raman scattering in the range between 100 and 1,600cm(-1), for a sample irradiated with 8 different laser powers. The laser-induced heating has produced change in existing phases in sample, destruction of MnO phase, and creation of MnO2, Mn3O4, and MnOOH phases along with formation of Mn2+ on the sample surface. These phase changes have been confirmed by X-ray diffraction and atomic force microscopy measurements.",
journal = "Journal of Raman Spectroscopy",
title = "Influence of laser-induced heating on MnO nanoparticles",
volume = "49",
number = "5",
pages = "817-821",
doi = "10.1002/jrs.5358"
}

Hadžić, B. B., Vasić, B. Z., Matović, B., Kuryliszyn-Kudelska, I., Dobrowolski, W. D., Romčević, M. J.,& Romčević, N. Ž.. (2018). Influence of laser-induced heating on MnO nanoparticles. in Journal of Raman Spectroscopy, 49(5), 817-821.
https://doi.org/10.1002/jrs.5358

Hadžić BB, Vasić BZ, Matović B, Kuryliszyn-Kudelska I, Dobrowolski WD, Romčević MJ, Romčević NŽ. Influence of laser-induced heating on MnO nanoparticles. in Journal of Raman Spectroscopy. 2018;49(5):817-821.
doi:10.1002/jrs.5358 .

Hadžić, Branka B., Vasić, Borislav Z., Matović, Branko, Kuryliszyn-Kudelska, Izabela, Dobrowolski, Witold D., Romčević, Maja J., Romčević, Nebojša Ž., "Influence of laser-induced heating on MnO nanoparticles" in Journal of Raman Spectroscopy, 49, no. 5 (2018):817-821,
https://doi.org/10.1002/jrs.5358 . .

TY  - JOUR
AU  - Mitrić, Jelena
AU  - Paunović, Novica M.
AU  - Mitrić, Miodrag
AU  - Vasić, Borislav Z.
AU  - Ralević, Uroš
AU  - Trajić, Jelena
AU  - Romčević, Maja J.
AU  - Dobrowolski, Witold D.
AU  - Yahia, Ibrahim S.
AU  - Romčević, Nebojša Ž.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7808
AB  - Structural and optical properties of CdTe thin films were investigated applying atomic force microscopy (AFM), XRD powder technique, Raman spectroscopy and far–infrared spectroscopy. CdTe thin films were prepared by using thermal evaporation technique. In the analysis of the far – infrared reflection spectra, numerical model for calculating the reflectivity coefficient for system which includes films and substrate has been applied. Effective permittivity of film mixture (CdTe and air) was modeled by Maxwell – Garnet approximation. We reveal the existence of surface optical phonon (SOP) mode and coupled plasmon-SOP modes (CPSOPM). © 2018 Elsevier B.V.
T2  - Physica E: Low-dimensional Systems and Nanostructures
T1  - Surface optical phonon – Plasmon interaction in nanodimensional CdTe thin films
VL  - 104
SP  - 64
EP  - 70
DO  - 10.1016/j.physe.2018.07.021
ER  - 

@article{
author = "Mitrić, Jelena and Paunović, Novica M. and Mitrić, Miodrag and Vasić, Borislav Z. and Ralević, Uroš and Trajić, Jelena and Romčević, Maja J. and Dobrowolski, Witold D. and Yahia, Ibrahim S. and Romčević, Nebojša Ž.",
year = "2018",
abstract = "Structural and optical properties of CdTe thin films were investigated applying atomic force microscopy (AFM), XRD powder technique, Raman spectroscopy and far–infrared spectroscopy. CdTe thin films were prepared by using thermal evaporation technique. In the analysis of the far – infrared reflection spectra, numerical model for calculating the reflectivity coefficient for system which includes films and substrate has been applied. Effective permittivity of film mixture (CdTe and air) was modeled by Maxwell – Garnet approximation. We reveal the existence of surface optical phonon (SOP) mode and coupled plasmon-SOP modes (CPSOPM). © 2018 Elsevier B.V.",
journal = "Physica E: Low-dimensional Systems and Nanostructures",
title = "Surface optical phonon – Plasmon interaction in nanodimensional CdTe thin films",
volume = "104",
pages = "64-70",
doi = "10.1016/j.physe.2018.07.021"
}

Mitrić, J., Paunović, N. M., Mitrić, M., Vasić, B. Z., Ralević, U., Trajić, J., Romčević, M. J., Dobrowolski, W. D., Yahia, I. S.,& Romčević, N. Ž.. (2018). Surface optical phonon – Plasmon interaction in nanodimensional CdTe thin films. in Physica E: Low-dimensional Systems and Nanostructures, 104, 64-70.
https://doi.org/10.1016/j.physe.2018.07.021

Mitrić J, Paunović NM, Mitrić M, Vasić BZ, Ralević U, Trajić J, Romčević MJ, Dobrowolski WD, Yahia IS, Romčević NŽ. Surface optical phonon – Plasmon interaction in nanodimensional CdTe thin films. in Physica E: Low-dimensional Systems and Nanostructures. 2018;104:64-70.
doi:10.1016/j.physe.2018.07.021 .

Mitrić, Jelena, Paunović, Novica M., Mitrić, Miodrag, Vasić, Borislav Z., Ralević, Uroš, Trajić, Jelena, Romčević, Maja J., Dobrowolski, Witold D., Yahia, Ibrahim S., Romčević, Nebojša Ž., "Surface optical phonon – Plasmon interaction in nanodimensional CdTe thin films" in Physica E: Low-dimensional Systems and Nanostructures, 104 (2018):64-70,
https://doi.org/10.1016/j.physe.2018.07.021 . .

TY  - JOUR
AU  - Nikezić, Dušan P.
AU  - Gršić, Zoran J.
AU  - Dramlić, Dragan M.
AU  - Dramlić, Stefan D.
AU  - Lončar, Boris B.
AU  - Dimović, Slavko
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1450
AB  - The aim of the study was to estimate if dust/fly ash emitted into the atmosphere from chimneys and the ash disposal sites of the thermal power plants Nikola Tesla A and B in Obrenovac could increase the concentration of PM10 in New Belgrade. TNTA and TNTB are close to Belgrade (population of 2.5 million) and it is important to estimate the amount of the pollution emitted into the atmosphere from these sources. The pollution from chimneys is estimated from yearly amounts of discharge, while the lifting of ash/coal dust was parameterized by the model. The used model is the straight-line Gaussian plume model written in the Fortran programming language. The first estimation was done using mathematical modeling for the idealized situation with prescribed winds and stability. The second estimation was done using the observed meteorological data for the whole year of 2009. With strong winds (over 40 km/h), dust will reach Belgrade in dozens of minutes, while during moderate winds (similar to 10-30 km/h), it would take about one hour to reach it. In these cases atmosphere is close to the neutral stability class. In case of weaker winds and stable atmosphere, the increase of air dust concentration in Belgrade would start after a few hours (6-10). Regarding the other two sources of pollution, coal handling piles and ash deposit sites, during strong winds ( GT 40 km/h) and neutral stability, fly ash would reach Belgrade in several dozen of minutes. (C) 2016 Published by Elsevier B.V. on behalf of Institution of Chemical Engineers.
T2  - Process Safety and Environmental Protection
T1  - Modeling air concentration of fly ash in Belgrade, emitted from thermal power plants TNTA and TNTB
VL  - 106
SP  - 274
EP  - 283
DO  - 10.1016/j.psep.2016.06.009
ER  - 

@article{
author = "Nikezić, Dušan P. and Gršić, Zoran J. and Dramlić, Dragan M. and Dramlić, Stefan D. and Lončar, Boris B. and Dimović, Slavko",
year = "2017",
abstract = "The aim of the study was to estimate if dust/fly ash emitted into the atmosphere from chimneys and the ash disposal sites of the thermal power plants Nikola Tesla A and B in Obrenovac could increase the concentration of PM10 in New Belgrade. TNTA and TNTB are close to Belgrade (population of 2.5 million) and it is important to estimate the amount of the pollution emitted into the atmosphere from these sources. The pollution from chimneys is estimated from yearly amounts of discharge, while the lifting of ash/coal dust was parameterized by the model. The used model is the straight-line Gaussian plume model written in the Fortran programming language. The first estimation was done using mathematical modeling for the idealized situation with prescribed winds and stability. The second estimation was done using the observed meteorological data for the whole year of 2009. With strong winds (over 40 km/h), dust will reach Belgrade in dozens of minutes, while during moderate winds (similar to 10-30 km/h), it would take about one hour to reach it. In these cases atmosphere is close to the neutral stability class. In case of weaker winds and stable atmosphere, the increase of air dust concentration in Belgrade would start after a few hours (6-10). Regarding the other two sources of pollution, coal handling piles and ash deposit sites, during strong winds ( GT 40 km/h) and neutral stability, fly ash would reach Belgrade in several dozen of minutes. (C) 2016 Published by Elsevier B.V. on behalf of Institution of Chemical Engineers.",
journal = "Process Safety and Environmental Protection",
title = "Modeling air concentration of fly ash in Belgrade, emitted from thermal power plants TNTA and TNTB",
volume = "106",
pages = "274-283",
doi = "10.1016/j.psep.2016.06.009"
}

Nikezić, D. P., Gršić, Z. J., Dramlić, D. M., Dramlić, S. D., Lončar, B. B.,& Dimović, S.. (2017). Modeling air concentration of fly ash in Belgrade, emitted from thermal power plants TNTA and TNTB. in Process Safety and Environmental Protection, 106, 274-283.
https://doi.org/10.1016/j.psep.2016.06.009

Nikezić DP, Gršić ZJ, Dramlić DM, Dramlić SD, Lončar BB, Dimović S. Modeling air concentration of fly ash in Belgrade, emitted from thermal power plants TNTA and TNTB. in Process Safety and Environmental Protection. 2017;106:274-283.
doi:10.1016/j.psep.2016.06.009 .

Nikezić, Dušan P., Gršić, Zoran J., Dramlić, Dragan M., Dramlić, Stefan D., Lončar, Boris B., Dimović, Slavko, "Modeling air concentration of fly ash in Belgrade, emitted from thermal power plants TNTA and TNTB" in Process Safety and Environmental Protection, 106 (2017):274-283,
https://doi.org/10.1016/j.psep.2016.06.009 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Jovalekić, Čedomir
AU  - Gilic, Martina
AU  - Ivanovski, Valentin N.
AU  - Umićević, Ana
AU  - Sekulić, Dalibor L.
AU  - Romčević, Nebojša Ž.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1778
AB  - Yttrium orthoferrite (YFeO3) powder was prepared by a mechanochemical synthesis from a mixture of Y2O3 and alpha-Fe2O3 powders in a planetary ball mill for 2.5 h. The obtained YFeO3 powder sample was characterized by X-ray diffraction (XRD), Raman and infrared spectroscopy. The average crystallite size calculated by the Scherrer equation was 12 nm. The Mossbauer spectroscopy at room temperature confirms the superparamagnetic character of YFeO3 orthoferrite sample.
T2  - Science of Sintering
T1  - Yttrium Orthoferrite Powder Obtained by the Mechanochemical Synthesis
VL  - 49
IS  - 3
SP  - 277
EP  - 284
DO  - 10.2298/SOS1703277L
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Jovalekić, Čedomir and Gilic, Martina and Ivanovski, Valentin N. and Umićević, Ana and Sekulić, Dalibor L. and Romčević, Nebojša Ž.",
year = "2017",
abstract = "Yttrium orthoferrite (YFeO3) powder was prepared by a mechanochemical synthesis from a mixture of Y2O3 and alpha-Fe2O3 powders in a planetary ball mill for 2.5 h. The obtained YFeO3 powder sample was characterized by X-ray diffraction (XRD), Raman and infrared spectroscopy. The average crystallite size calculated by the Scherrer equation was 12 nm. The Mossbauer spectroscopy at room temperature confirms the superparamagnetic character of YFeO3 orthoferrite sample.",
journal = "Science of Sintering",
title = "Yttrium Orthoferrite Powder Obtained by the Mechanochemical Synthesis",
volume = "49",
number = "3",
pages = "277-284",
doi = "10.2298/SOS1703277L"
}

Lazarević, Z. Ž., Jovalekić, Č., Gilic, M., Ivanovski, V. N., Umićević, A., Sekulić, D. L.,& Romčević, N. Ž.. (2017). Yttrium Orthoferrite Powder Obtained by the Mechanochemical Synthesis. in Science of Sintering, 49(3), 277-284.
https://doi.org/10.2298/SOS1703277L

Lazarević ZŽ, Jovalekić Č, Gilic M, Ivanovski VN, Umićević A, Sekulić DL, Romčević NŽ. Yttrium Orthoferrite Powder Obtained by the Mechanochemical Synthesis. in Science of Sintering. 2017;49(3):277-284.
doi:10.2298/SOS1703277L .

Lazarević, Zorica Ž., Jovalekić, Čedomir, Gilic, Martina, Ivanovski, Valentin N., Umićević, Ana, Sekulić, Dalibor L., Romčević, Nebojša Ž., "Yttrium Orthoferrite Powder Obtained by the Mechanochemical Synthesis" in Science of Sintering, 49, no. 3 (2017):277-284,
https://doi.org/10.2298/SOS1703277L . .

TY  - JOUR
AU  - Brajovic, Ljiljana M.
AU  - Stojanović, Dušica B.
AU  - Mihailovic, Pedja
AU  - Marković, Smilja
AU  - Romčević, Maja J.
AU  - Mitrić, Miodrag
AU  - Lazović, Vladimir M.
AU  - Dramlić, Dragan M.
AU  - Petričević, Slobodan
AU  - Romčević, Nebojša Ž.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1380
AB  - Bismuth germanium oxide Bi12GeO20 (BGO) has very interesting electrical, optical and magnetic properties. In order to make devices based on this material more flexible, its powder was used for preparing polymer composites. This study reports investigation of the effects of using different solvents and polymers in preparation of BGO composite on the microstructural and optical behaviour of the resulting material. Preparation of such composites by a solution casting method is described. Poly (methyl methacrylate) (PMMA) and polystyrene (PS)) were used as matrix materials and acetone and chloroform as solvents. Their microstructure and the quality of BGO dispersion and deaggregation in polymer matrix were analyzed by SEM, Raman, XRD and optical spectroscopy. The influence of particle size distribution, their shapes, and concentration on the optical transmission is calculated based on Mie scattering theory and discussed, too. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Preparation and characterization of bismuth germanium oxide (BGO) polymer composites
VL  - 695
SP  - 841
EP  - 849
DO  - 10.1016/j.jallcom.2016.10.140
ER  - 

@article{
author = "Brajovic, Ljiljana M. and Stojanović, Dušica B. and Mihailovic, Pedja and Marković, Smilja and Romčević, Maja J. and Mitrić, Miodrag and Lazović, Vladimir M. and Dramlić, Dragan M. and Petričević, Slobodan and Romčević, Nebojša Ž.",
year = "2017",
abstract = "Bismuth germanium oxide Bi12GeO20 (BGO) has very interesting electrical, optical and magnetic properties. In order to make devices based on this material more flexible, its powder was used for preparing polymer composites. This study reports investigation of the effects of using different solvents and polymers in preparation of BGO composite on the microstructural and optical behaviour of the resulting material. Preparation of such composites by a solution casting method is described. Poly (methyl methacrylate) (PMMA) and polystyrene (PS)) were used as matrix materials and acetone and chloroform as solvents. Their microstructure and the quality of BGO dispersion and deaggregation in polymer matrix were analyzed by SEM, Raman, XRD and optical spectroscopy. The influence of particle size distribution, their shapes, and concentration on the optical transmission is calculated based on Mie scattering theory and discussed, too. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Preparation and characterization of bismuth germanium oxide (BGO) polymer composites",
volume = "695",
pages = "841-849",
doi = "10.1016/j.jallcom.2016.10.140"
}

Brajovic, L. M., Stojanović, D. B., Mihailovic, P., Marković, S., Romčević, M. J., Mitrić, M., Lazović, V. M., Dramlić, D. M., Petričević, S.,& Romčević, N. Ž.. (2017). Preparation and characterization of bismuth germanium oxide (BGO) polymer composites. in Journal of Alloys and Compounds, 695, 841-849.
https://doi.org/10.1016/j.jallcom.2016.10.140

Brajovic LM, Stojanović DB, Mihailovic P, Marković S, Romčević MJ, Mitrić M, Lazović VM, Dramlić DM, Petričević S, Romčević NŽ. Preparation and characterization of bismuth germanium oxide (BGO) polymer composites. in Journal of Alloys and Compounds. 2017;695:841-849.
doi:10.1016/j.jallcom.2016.10.140 .

Brajovic, Ljiljana M., Stojanović, Dušica B., Mihailovic, Pedja, Marković, Smilja, Romčević, Maja J., Mitrić, Miodrag, Lazović, Vladimir M., Dramlić, Dragan M., Petričević, Slobodan, Romčević, Nebojša Ž., "Preparation and characterization of bismuth germanium oxide (BGO) polymer composites" in Journal of Alloys and Compounds, 695 (2017):841-849,
https://doi.org/10.1016/j.jallcom.2016.10.140 . .

TY  - JOUR
AU  - Šević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Križan, Janez
AU  - Savić-Šević, Svetlana N.
AU  - Mitrić, Miodrag
AU  - Gilić, Martina D.
AU  - Hadžić, Branka B.
AU  - Romčević, Nebojša Ž.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1421
AB  - In this paper we describe the synthesis and characterization of the YVO4:Eu3+ nanopowder. The material was prepared using simple solution combustion synthesis. X-ray powder diffraction (XRD), scanning electron microscope (SEM), Raman and photoluminescence (PL) techniques were used to confirm and characterize the prepared material. The time resolved analysis of emission spectra was achieved by using the streak camera system. Beside luminescence lifetime of slow decayed transitions we also measured their rise time and lifetime of fast decayed transitions. We also determitied the excitation spectra of this nano material. Results of our analysis prove that YVO4:Eu3(+) nanopowder is appropriate material for various optoelectronic devices. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Characterization and luminescence kinetics of Eu3+ doped YVO4 nanopowders
VL  - 88
SP  - 121
EP  - 126
DO  - 10.1016/j.materresbull.2016.12.021
ER  - 

@article{
author = "Šević, Dragutin M. and Rabasović, Maja S. and Križan, Janez and Savić-Šević, Svetlana N. and Mitrić, Miodrag and Gilić, Martina D. and Hadžić, Branka B. and Romčević, Nebojša Ž.",
year = "2017",
abstract = "In this paper we describe the synthesis and characterization of the YVO4:Eu3+ nanopowder. The material was prepared using simple solution combustion synthesis. X-ray powder diffraction (XRD), scanning electron microscope (SEM), Raman and photoluminescence (PL) techniques were used to confirm and characterize the prepared material. The time resolved analysis of emission spectra was achieved by using the streak camera system. Beside luminescence lifetime of slow decayed transitions we also measured their rise time and lifetime of fast decayed transitions. We also determitied the excitation spectra of this nano material. Results of our analysis prove that YVO4:Eu3(+) nanopowder is appropriate material for various optoelectronic devices. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Characterization and luminescence kinetics of Eu3+ doped YVO4 nanopowders",
volume = "88",
pages = "121-126",
doi = "10.1016/j.materresbull.2016.12.021"
}

Šević, D. M., Rabasović, M. S., Križan, J., Savić-Šević, S. N., Mitrić, M., Gilić, M. D., Hadžić, B. B.,& Romčević, N. Ž.. (2017). Characterization and luminescence kinetics of Eu3+ doped YVO4 nanopowders. in Materials Research Bulletin, 88, 121-126.
https://doi.org/10.1016/j.materresbull.2016.12.021

Šević DM, Rabasović MS, Križan J, Savić-Šević SN, Mitrić M, Gilić MD, Hadžić BB, Romčević NŽ. Characterization and luminescence kinetics of Eu3+ doped YVO4 nanopowders. in Materials Research Bulletin. 2017;88:121-126.
doi:10.1016/j.materresbull.2016.12.021 .

Šević, Dragutin M., Rabasović, Maja S., Križan, Janez, Savić-Šević, Svetlana N., Mitrić, Miodrag, Gilić, Martina D., Hadžić, Branka B., Romčević, Nebojša Ž., "Characterization and luminescence kinetics of Eu3+ doped YVO4 nanopowders" in Materials Research Bulletin, 88 (2017):121-126,
https://doi.org/10.1016/j.materresbull.2016.12.021 . .

TY  - JOUR
AU  - Bundaleski, Nenad
AU  - Radisavljević, Ivana
AU  - Trigueiro, Joao
AU  - Tolstogouzov, Alexander
AU  - Rakočević, Zlatko Lj.
AU  - Medić, Mirjana
AU  - Teodoro, Orlando M. N. D.
AU  - Romčević, Nebojša Ž.
AU  - Ivanović, Nenad
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1422
AB  - Using X-ray induced Photoelectron Spectroscopy, Time of Flight Secondary Ion Mass Spectrometry and Atomic Force Microscopy we have investigated elemental composition, structure and oxidation process taking place at the surfaces of polycrystalline Cd0.99Fe0.01Te0.97Se0.03 and Cd0.95Mn0.05Te0.97Se0.03 systems stored in ambient conditions. The surface oxidation destroys the native CdTe matrix and provokes substantial atomic rearrangement in the first few atomic layers. The near surface region of both systems is enriched in Cd and to some extent Te-deficient, but the surface structure, morphology and the native oxide composition are all found to be considerably different. In Cd0.99Fe0.01Te0.97Se0.03 system both Fe and Se dopants diffuse into the bulk and oxidation of its surface results in formation of a thin CdTeO3 layer which covers the CdTe matrix. In Cd0.95Mn0.05Te0.97Se0.03 system oxygen-rich atmosphere triggers Mn and Se out diffusion and the nonuniform oxide layer predominantly consists of MnO and a small amount of Te-oxide which both lay underneath a thin layer of metallic Cd segregated at the top of the surface. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Materials Chemistry and Physics
T1  - Surface composition of Cd1-xFe(Mn)(x)Te1-ySey systems exposed to air
VL  - 189
SP  - 35
EP  - 43
DO  - 10.1016/j.matchemphys.2016.12.029
ER  - 

@article{
author = "Bundaleski, Nenad and Radisavljević, Ivana and Trigueiro, Joao and Tolstogouzov, Alexander and Rakočević, Zlatko Lj. and Medić, Mirjana and Teodoro, Orlando M. N. D. and Romčević, Nebojša Ž. and Ivanović, Nenad",
year = "2017",
abstract = "Using X-ray induced Photoelectron Spectroscopy, Time of Flight Secondary Ion Mass Spectrometry and Atomic Force Microscopy we have investigated elemental composition, structure and oxidation process taking place at the surfaces of polycrystalline Cd0.99Fe0.01Te0.97Se0.03 and Cd0.95Mn0.05Te0.97Se0.03 systems stored in ambient conditions. The surface oxidation destroys the native CdTe matrix and provokes substantial atomic rearrangement in the first few atomic layers. The near surface region of both systems is enriched in Cd and to some extent Te-deficient, but the surface structure, morphology and the native oxide composition are all found to be considerably different. In Cd0.99Fe0.01Te0.97Se0.03 system both Fe and Se dopants diffuse into the bulk and oxidation of its surface results in formation of a thin CdTeO3 layer which covers the CdTe matrix. In Cd0.95Mn0.05Te0.97Se0.03 system oxygen-rich atmosphere triggers Mn and Se out diffusion and the nonuniform oxide layer predominantly consists of MnO and a small amount of Te-oxide which both lay underneath a thin layer of metallic Cd segregated at the top of the surface. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Surface composition of Cd1-xFe(Mn)(x)Te1-ySey systems exposed to air",
volume = "189",
pages = "35-43",
doi = "10.1016/j.matchemphys.2016.12.029"
}

Bundaleski, N., Radisavljević, I., Trigueiro, J., Tolstogouzov, A., Rakočević, Z. Lj., Medić, M., Teodoro, O. M. N. D., Romčević, N. Ž.,& Ivanović, N.. (2017). Surface composition of Cd1-xFe(Mn)(x)Te1-ySey systems exposed to air. in Materials Chemistry and Physics, 189, 35-43.
https://doi.org/10.1016/j.matchemphys.2016.12.029

Bundaleski N, Radisavljević I, Trigueiro J, Tolstogouzov A, Rakočević ZL, Medić M, Teodoro OMND, Romčević NŽ, Ivanović N. Surface composition of Cd1-xFe(Mn)(x)Te1-ySey systems exposed to air. in Materials Chemistry and Physics. 2017;189:35-43.
doi:10.1016/j.matchemphys.2016.12.029 .

Bundaleski, Nenad, Radisavljević, Ivana, Trigueiro, Joao, Tolstogouzov, Alexander, Rakočević, Zlatko Lj., Medić, Mirjana, Teodoro, Orlando M. N. D., Romčević, Nebojša Ž., Ivanović, Nenad, "Surface composition of Cd1-xFe(Mn)(x)Te1-ySey systems exposed to air" in Materials Chemistry and Physics, 189 (2017):35-43,
https://doi.org/10.1016/j.matchemphys.2016.12.029 . .

TY  - JOUR
AU  - Radisavljević, Ivana
AU  - Kuzmanović, Bojana
AU  - Novaković, Nikola
AU  - Mahnke, Heinz-Eberhard
AU  - Vulićević, Lj.
AU  - Kurko, Sandra V.
AU  - Ivanović, Nenad
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1383
AB  - Structural and electronic properties, oxidation and aging effect of electrochemically (EC) synthesized magnetite nanopowders (NPs) are studied by means of X-ray diffraction (XRD), X-ray absorption fine structure (XAFS) and X-ray magnetic circular dichroism (XMCD). The obtained results enabled to get a direct insight into the structure and electronic properties of Fe immediate surrounding and to elucidate the influence of preparation conditions on stoichiometry of NPs and their stability in ambient conditions. All investigated NPs are produced as nonestoichiometric Fe3-delta O4 oxide phases, with the lattice constant and the Fe2+/Fe3+ ratio both in-between the values for bulk maghemite and magnetite. NPs synthesized under smaller current density (J = 200 mA/dm(2)) are more magnetite-alike, whereas larger current density (J = 1000 mA/dm(2)) has led to formation of NPs closer to maghemite. Oxidation of magnetite-like NPs is slower, although in the course of time particles agglomerate and oxide penetrates into the core. Maghemite-like NPs oxidize much faster and the oxide layer which is confined close to the particles surface protects the core from further oxidation. In all NPs the fist coordination around Fe is pretty stable against both temperature and oxidation process. The temperature change from 293 K to 20 K considerably affects the second coordination around Fe, which is most likely a consequence of the Verwey transition present in all investigated samples. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Structural stability and local electronic properties of some EC synthesized magnetite nanopowders
VL  - 697
SP  - 409
EP  - 416
DO  - 10.1016/j.jallcom.2016.11.090
ER  - 

@article{
author = "Radisavljević, Ivana and Kuzmanović, Bojana and Novaković, Nikola and Mahnke, Heinz-Eberhard and Vulićević, Lj. and Kurko, Sandra V. and Ivanović, Nenad",
year = "2017",
abstract = "Structural and electronic properties, oxidation and aging effect of electrochemically (EC) synthesized magnetite nanopowders (NPs) are studied by means of X-ray diffraction (XRD), X-ray absorption fine structure (XAFS) and X-ray magnetic circular dichroism (XMCD). The obtained results enabled to get a direct insight into the structure and electronic properties of Fe immediate surrounding and to elucidate the influence of preparation conditions on stoichiometry of NPs and their stability in ambient conditions. All investigated NPs are produced as nonestoichiometric Fe3-delta O4 oxide phases, with the lattice constant and the Fe2+/Fe3+ ratio both in-between the values for bulk maghemite and magnetite. NPs synthesized under smaller current density (J = 200 mA/dm(2)) are more magnetite-alike, whereas larger current density (J = 1000 mA/dm(2)) has led to formation of NPs closer to maghemite. Oxidation of magnetite-like NPs is slower, although in the course of time particles agglomerate and oxide penetrates into the core. Maghemite-like NPs oxidize much faster and the oxide layer which is confined close to the particles surface protects the core from further oxidation. In all NPs the fist coordination around Fe is pretty stable against both temperature and oxidation process. The temperature change from 293 K to 20 K considerably affects the second coordination around Fe, which is most likely a consequence of the Verwey transition present in all investigated samples. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Structural stability and local electronic properties of some EC synthesized magnetite nanopowders",
volume = "697",
pages = "409-416",
doi = "10.1016/j.jallcom.2016.11.090"
}

Radisavljević, I., Kuzmanović, B., Novaković, N., Mahnke, H., Vulićević, Lj., Kurko, S. V.,& Ivanović, N.. (2017). Structural stability and local electronic properties of some EC synthesized magnetite nanopowders. in Journal of Alloys and Compounds, 697, 409-416.
https://doi.org/10.1016/j.jallcom.2016.11.090

Radisavljević I, Kuzmanović B, Novaković N, Mahnke H, Vulićević L, Kurko SV, Ivanović N. Structural stability and local electronic properties of some EC synthesized magnetite nanopowders. in Journal of Alloys and Compounds. 2017;697:409-416.
doi:10.1016/j.jallcom.2016.11.090 .

Radisavljević, Ivana, Kuzmanović, Bojana, Novaković, Nikola, Mahnke, Heinz-Eberhard, Vulićević, Lj., Kurko, Sandra V., Ivanović, Nenad, "Structural stability and local electronic properties of some EC synthesized magnetite nanopowders" in Journal of Alloys and Compounds, 697 (2017):409-416,
https://doi.org/10.1016/j.jallcom.2016.11.090 . .

TY  - JOUR
AU  - Kovačević, Aleksander
AU  - Ristić-Đurović, Jasna L.
AU  - Lekic, Marina
AU  - Hadžić, Branka B.
AU  - Abudagel, Giuma Saleh Isa
AU  - Petričević, Slobodan
AU  - Mihailovic, Pedja
AU  - Matović, Branko
AU  - Dramlić, Dragan M.
AU  - Brajovic, Ljiljana M.
AU  - Romčević, Nebojša Ž.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1235
AB  - High quality bismuth germanium oxide single crystals were irradiated by a femtosecond pulsed laser beam of increasing power. Analyses performed on irradiated and unirradiated samples showed significant changes in transmittance, transmission spectra, sample color, Raman spectra, X-ray diffraction (XRD) pattern, Verdet constant, magneto-optical property, and absorption coefficient. After irradiation, the transmission spectra values increased whereas anisotropy detected in the transmission spectra of unirradiated samples disappeared. The change of color caused by irradiation was noticeable to the naked eye. The XRD measurements confirmed structural changes induced by laser irradiation, i.e., the laser-beam-incident side of the sample became almost amorphous, whereas the side opposite to the incident can be indexed to the Bi12GeO20 compound. Irradiation caused increase of Raman spectra peaks with the exception of crystal peaks of type E, which disappeared. The femtosecond pulsed laser irradiation can be used to improve bismuth germanium oxide single crystal optical properties. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Influence of femtosecond pulsed laser irradiation on bismuth germanium oxide single crystal properties
VL  - 83
SP  - 284
EP  - 289
DO  - 10.1016/j.materresbull.2016.06.023
ER  - 

@article{
author = "Kovačević, Aleksander and Ristić-Đurović, Jasna L. and Lekic, Marina and Hadžić, Branka B. and Abudagel, Giuma Saleh Isa and Petričević, Slobodan and Mihailovic, Pedja and Matović, Branko and Dramlić, Dragan M. and Brajovic, Ljiljana M. and Romčević, Nebojša Ž.",
year = "2016",
abstract = "High quality bismuth germanium oxide single crystals were irradiated by a femtosecond pulsed laser beam of increasing power. Analyses performed on irradiated and unirradiated samples showed significant changes in transmittance, transmission spectra, sample color, Raman spectra, X-ray diffraction (XRD) pattern, Verdet constant, magneto-optical property, and absorption coefficient. After irradiation, the transmission spectra values increased whereas anisotropy detected in the transmission spectra of unirradiated samples disappeared. The change of color caused by irradiation was noticeable to the naked eye. The XRD measurements confirmed structural changes induced by laser irradiation, i.e., the laser-beam-incident side of the sample became almost amorphous, whereas the side opposite to the incident can be indexed to the Bi12GeO20 compound. Irradiation caused increase of Raman spectra peaks with the exception of crystal peaks of type E, which disappeared. The femtosecond pulsed laser irradiation can be used to improve bismuth germanium oxide single crystal optical properties. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Influence of femtosecond pulsed laser irradiation on bismuth germanium oxide single crystal properties",
volume = "83",
pages = "284-289",
doi = "10.1016/j.materresbull.2016.06.023"
}

Kovačević, A., Ristić-Đurović, J. L., Lekic, M., Hadžić, B. B., Abudagel, G. S. I., Petričević, S., Mihailovic, P., Matović, B., Dramlić, D. M., Brajovic, L. M.,& Romčević, N. Ž.. (2016). Influence of femtosecond pulsed laser irradiation on bismuth germanium oxide single crystal properties. in Materials Research Bulletin, 83, 284-289.
https://doi.org/10.1016/j.materresbull.2016.06.023

Kovačević A, Ristić-Đurović JL, Lekic M, Hadžić BB, Abudagel GSI, Petričević S, Mihailovic P, Matović B, Dramlić DM, Brajovic LM, Romčević NŽ. Influence of femtosecond pulsed laser irradiation on bismuth germanium oxide single crystal properties. in Materials Research Bulletin. 2016;83:284-289.
doi:10.1016/j.materresbull.2016.06.023 .

Kovačević, Aleksander, Ristić-Đurović, Jasna L., Lekic, Marina, Hadžić, Branka B., Abudagel, Giuma Saleh Isa, Petričević, Slobodan, Mihailovic, Pedja, Matović, Branko, Dramlić, Dragan M., Brajovic, Ljiljana M., Romčević, Nebojša Ž., "Influence of femtosecond pulsed laser irradiation on bismuth germanium oxide single crystal properties" in Materials Research Bulletin, 83 (2016):284-289,
https://doi.org/10.1016/j.materresbull.2016.06.023 . .

TY  - JOUR
AU  - Gilić, Martina D.
AU  - Petrović, Milica S.
AU  - Kostić, Radmila
AU  - Stojanović, Dušanka
AU  - Barudžija, Tanja
AU  - Mitrić, Miodrag
AU  - Romčević, Nebojša Ž.
AU  - Ralević, Uroš
AU  - Trajić, Jelena
AU  - Romčević, Maja J.
AU  - Yahia, Ibrahim S.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1116
AB  - This paper describes the structural and optical properties of Cu-Se thin films. The surface morphology of thin films was investigated by atomic force microscopy (AFM) and scanning electron microscopy (SEM). Formation of Cu-Se thin films is concluded to proceed unevenly, in the form of islands which later grew into agglomerates. The structural characterization of Cu-Se thin film was investigated using X-ray diffraction pattern (XRD). The presence of two-phase system is observed. One is the solid solution of Cu in Se and the other is low-pressure modification of CuSe2. The Raman spectroscopy was used to identify and quantify the individual phases present in the Cu-Se films. Red shift and asymmetry of Raman mode characteristic for CuSe2 enable us to estimate nanocrystal dimension. In the analysis of the far infrared reflection spectra, numerical model for calculating the reflectivity coefficient of layered system, which includes film with nanocrystalite inclusions (modeled by Maxwell -Garnett approximation) and substrate, has been applied. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Infrared Physics and Technology
T1  - Structural and optical properties of CuSe2 nanocrystals formed in thin solid Cu-Se film
VL  - 76
SP  - 276
EP  - 284
DO  - 10.1016/j.infrared.2016.03.008
ER  - 

@article{
author = "Gilić, Martina D. and Petrović, Milica S. and Kostić, Radmila and Stojanović, Dušanka and Barudžija, Tanja and Mitrić, Miodrag and Romčević, Nebojša Ž. and Ralević, Uroš and Trajić, Jelena and Romčević, Maja J. and Yahia, Ibrahim S.",
year = "2016",
abstract = "This paper describes the structural and optical properties of Cu-Se thin films. The surface morphology of thin films was investigated by atomic force microscopy (AFM) and scanning electron microscopy (SEM). Formation of Cu-Se thin films is concluded to proceed unevenly, in the form of islands which later grew into agglomerates. The structural characterization of Cu-Se thin film was investigated using X-ray diffraction pattern (XRD). The presence of two-phase system is observed. One is the solid solution of Cu in Se and the other is low-pressure modification of CuSe2. The Raman spectroscopy was used to identify and quantify the individual phases present in the Cu-Se films. Red shift and asymmetry of Raman mode characteristic for CuSe2 enable us to estimate nanocrystal dimension. In the analysis of the far infrared reflection spectra, numerical model for calculating the reflectivity coefficient of layered system, which includes film with nanocrystalite inclusions (modeled by Maxwell -Garnett approximation) and substrate, has been applied. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Infrared Physics and Technology",
title = "Structural and optical properties of CuSe2 nanocrystals formed in thin solid Cu-Se film",
volume = "76",
pages = "276-284",
doi = "10.1016/j.infrared.2016.03.008"
}

Gilić, M. D., Petrović, M. S., Kostić, R., Stojanović, D., Barudžija, T., Mitrić, M., Romčević, N. Ž., Ralević, U., Trajić, J., Romčević, M. J.,& Yahia, I. S.. (2016). Structural and optical properties of CuSe2 nanocrystals formed in thin solid Cu-Se film. in Infrared Physics and Technology, 76, 276-284.
https://doi.org/10.1016/j.infrared.2016.03.008

Gilić MD, Petrović MS, Kostić R, Stojanović D, Barudžija T, Mitrić M, Romčević NŽ, Ralević U, Trajić J, Romčević MJ, Yahia IS. Structural and optical properties of CuSe2 nanocrystals formed in thin solid Cu-Se film. in Infrared Physics and Technology. 2016;76:276-284.
doi:10.1016/j.infrared.2016.03.008 .

Gilić, Martina D., Petrović, Milica S., Kostić, Radmila, Stojanović, Dušanka, Barudžija, Tanja, Mitrić, Miodrag, Romčević, Nebojša Ž., Ralević, Uroš, Trajić, Jelena, Romčević, Maja J., Yahia, Ibrahim S., "Structural and optical properties of CuSe2 nanocrystals formed in thin solid Cu-Se film" in Infrared Physics and Technology, 76 (2016):276-284,
https://doi.org/10.1016/j.infrared.2016.03.008 . .

TY  - JOUR
AU  - Trajić, Jelena
AU  - Romčević, Maja J.
AU  - Romčević, Nebojša Ž.
AU  - Babić, Biljana M.
AU  - Matović, Branko
AU  - Balaž, Peter
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1135
AB  - ZnS nanoparticles were synthesized mechanochemically by high-energy milling, with three different milling times (5 min, 10 min and 20 min). Nitrogen adsorption method was used for examining specific surface area and texture of obtained powders. It was found that all samples are completely mesoporous. The optical properties were studied by far-infrared spectroscopy at room temperature in spectral region of 50-600 cm(-1). The analysis of the far-infrared reflectivity spectra was made by the fitting procedure. The dielectric function of ZnS nanoparticles is modeled as a mixture of homogenous spherical inclusions in air by the Maxwell-Garnet formula. In the analysis of the far-infrared reflection spectra, appearance of combined plasmon-LO phonon modes (CPPMs) with high phonon damping are observed, which causes decrease of coupled plasmon-phonon frequencies. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Optical Materials
T1  - Far-infrared spectra of mesoporous ZnS nanoparticles
VL  - 57
SP  - 225
EP  - 230
DO  - 10.1016/j.optmat.2016.05.004
ER  - 

@article{
author = "Trajić, Jelena and Romčević, Maja J. and Romčević, Nebojša Ž. and Babić, Biljana M. and Matović, Branko and Balaž, Peter",
year = "2016",
abstract = "ZnS nanoparticles were synthesized mechanochemically by high-energy milling, with three different milling times (5 min, 10 min and 20 min). Nitrogen adsorption method was used for examining specific surface area and texture of obtained powders. It was found that all samples are completely mesoporous. The optical properties were studied by far-infrared spectroscopy at room temperature in spectral region of 50-600 cm(-1). The analysis of the far-infrared reflectivity spectra was made by the fitting procedure. The dielectric function of ZnS nanoparticles is modeled as a mixture of homogenous spherical inclusions in air by the Maxwell-Garnet formula. In the analysis of the far-infrared reflection spectra, appearance of combined plasmon-LO phonon modes (CPPMs) with high phonon damping are observed, which causes decrease of coupled plasmon-phonon frequencies. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Optical Materials",
title = "Far-infrared spectra of mesoporous ZnS nanoparticles",
volume = "57",
pages = "225-230",
doi = "10.1016/j.optmat.2016.05.004"
}

Trajić, J., Romčević, M. J., Romčević, N. Ž., Babić, B. M., Matović, B.,& Balaž, P.. (2016). Far-infrared spectra of mesoporous ZnS nanoparticles. in Optical Materials, 57, 225-230.
https://doi.org/10.1016/j.optmat.2016.05.004

Trajić J, Romčević MJ, Romčević NŽ, Babić BM, Matović B, Balaž P. Far-infrared spectra of mesoporous ZnS nanoparticles. in Optical Materials. 2016;57:225-230.
doi:10.1016/j.optmat.2016.05.004 .

Trajić, Jelena, Romčević, Maja J., Romčević, Nebojša Ž., Babić, Biljana M., Matović, Branko, Balaž, Peter, "Far-infrared spectra of mesoporous ZnS nanoparticles" in Optical Materials, 57 (2016):225-230,
https://doi.org/10.1016/j.optmat.2016.05.004 . .

TY  - JOUR
AU  - Trajić, Jelena
AU  - Rabasović, Maja S.
AU  - Savić-Šević, Svetlana N.
AU  - Šević, Dragutin M.
AU  - Babić, Biljana M.
AU  - Romčević, Maja J.
AU  - Ristić-Đurović, Jasna L.
AU  - Paunović, Novica M.
AU  - Križan, Janez
AU  - Romčević, Nebojša Ž.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1210
AB  - The solution combustion synthesis was used to prepare nanopowders of yttrium aluminum garnet (YAG) and YAG doped with dysprosium ions, Dy3+, (YAG:Dy). The morphology, specific surface area, texture, and optical properties of the prepared materials were studied by the means of scanning electron microscopy (SEM), nitrogen adsorption method, and far-infrared spectroscopy at room temperature in the spectral region between 80 and 600 cm(-1). It was established that all the examined samples were microporous. The Maxwell-Garnet formula was used to model dielectric function of YAG and YAG:Dy nanopowders as mixtures of homogenous spherical inclusions in air. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Infrared Physics and Technology
T1  - Far-infrared spectra of dysprosium doped yttrium aluminum garnet nanopowder
VL  - 77
SP  - 226
EP  - 229
DO  - 10.1016/j.infrared.2016.06.003
ER  - 

@article{
author = "Trajić, Jelena and Rabasović, Maja S. and Savić-Šević, Svetlana N. and Šević, Dragutin M. and Babić, Biljana M. and Romčević, Maja J. and Ristić-Đurović, Jasna L. and Paunović, Novica M. and Križan, Janez and Romčević, Nebojša Ž.",
year = "2016",
abstract = "The solution combustion synthesis was used to prepare nanopowders of yttrium aluminum garnet (YAG) and YAG doped with dysprosium ions, Dy3+, (YAG:Dy). The morphology, specific surface area, texture, and optical properties of the prepared materials were studied by the means of scanning electron microscopy (SEM), nitrogen adsorption method, and far-infrared spectroscopy at room temperature in the spectral region between 80 and 600 cm(-1). It was established that all the examined samples were microporous. The Maxwell-Garnet formula was used to model dielectric function of YAG and YAG:Dy nanopowders as mixtures of homogenous spherical inclusions in air. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Infrared Physics and Technology",
title = "Far-infrared spectra of dysprosium doped yttrium aluminum garnet nanopowder",
volume = "77",
pages = "226-229",
doi = "10.1016/j.infrared.2016.06.003"
}

Trajić, J., Rabasović, M. S., Savić-Šević, S. N., Šević, D. M., Babić, B. M., Romčević, M. J., Ristić-Đurović, J. L., Paunović, N. M., Križan, J.,& Romčević, N. Ž.. (2016). Far-infrared spectra of dysprosium doped yttrium aluminum garnet nanopowder. in Infrared Physics and Technology, 77, 226-229.
https://doi.org/10.1016/j.infrared.2016.06.003

Trajić J, Rabasović MS, Savić-Šević SN, Šević DM, Babić BM, Romčević MJ, Ristić-Đurović JL, Paunović NM, Križan J, Romčević NŽ. Far-infrared spectra of dysprosium doped yttrium aluminum garnet nanopowder. in Infrared Physics and Technology. 2016;77:226-229.
doi:10.1016/j.infrared.2016.06.003 .

Trajić, Jelena, Rabasović, Maja S., Savić-Šević, Svetlana N., Šević, Dragutin M., Babić, Biljana M., Romčević, Maja J., Ristić-Đurović, Jasna L., Paunović, Novica M., Križan, Janez, Romčević, Nebojša Ž., "Far-infrared spectra of dysprosium doped yttrium aluminum garnet nanopowder" in Infrared Physics and Technology, 77 (2016):226-229,
https://doi.org/10.1016/j.infrared.2016.06.003 . .

TY  - JOUR
AU  - Kolarž, Predrag M.
AU  - Vaupotič, Janja
AU  - Kobal, Ivan
AU  - Ujić, Predrag
AU  - Žunić, Zora S.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/968
AB  - Concentration and size distribution of airborne particles (size range 10-1100 nm), using a SMPS+C Scanning Mobility Particle Sizer, and concentrations of positive and negative cluster ions (size range 0.36-1.6 nm), using several CDI-06 Gerdien-type integral air ion detectors, have been monitored in three rooms in rural dwellings of Serbia and Slovenia, during periods when nobody was present in the room and while smoking and heating were taking place. The highest particle generation rate was 2.4 x 10(11) min(-1) while cigarette smoking was taking place and was 1.5 x 10(11) min(-1) during heating with a cast iron stove with wood burning at 150 degrees C, and 1.1 x 10(10) min(-1), during heating with an Alpine -type oven at 40-50 degrees C. The related particle loss rate constants were 0.0603 min(-1), 0.0442 min(-1), and 0.0067 min(-1). The estimated mean values of the effective ion attachment rate beta(eff) vary between (2.2-5.4)10(-6) cm(3) s(-1). A correlation between ions concentration and particles concentration and their sizes has been sought, and findings are discussed and shown. (C) 2016 Elsevier Ltd. All rights reserved.
PB  - Elsevier
T2  - Journal of Aerosol Science
T1  - Air ion and aerosol study in rural dwellings
VL  - 95
SP  - 118
EP  - 134
DO  - 10.1016/j.jaerosci.2016.02.002
ER  - 

@article{
author = "Kolarž, Predrag M. and Vaupotič, Janja and Kobal, Ivan and Ujić, Predrag and Žunić, Zora S.",
year = "2016",
abstract = "Concentration and size distribution of airborne particles (size range 10-1100 nm), using a SMPS+C Scanning Mobility Particle Sizer, and concentrations of positive and negative cluster ions (size range 0.36-1.6 nm), using several CDI-06 Gerdien-type integral air ion detectors, have been monitored in three rooms in rural dwellings of Serbia and Slovenia, during periods when nobody was present in the room and while smoking and heating were taking place. The highest particle generation rate was 2.4 x 10(11) min(-1) while cigarette smoking was taking place and was 1.5 x 10(11) min(-1) during heating with a cast iron stove with wood burning at 150 degrees C, and 1.1 x 10(10) min(-1), during heating with an Alpine -type oven at 40-50 degrees C. The related particle loss rate constants were 0.0603 min(-1), 0.0442 min(-1), and 0.0067 min(-1). The estimated mean values of the effective ion attachment rate beta(eff) vary between (2.2-5.4)10(-6) cm(3) s(-1). A correlation between ions concentration and particles concentration and their sizes has been sought, and findings are discussed and shown. (C) 2016 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier",
journal = "Journal of Aerosol Science",
title = "Air ion and aerosol study in rural dwellings",
volume = "95",
pages = "118-134",
doi = "10.1016/j.jaerosci.2016.02.002"
}

Kolarž, P. M., Vaupotič, J., Kobal, I., Ujić, P.,& Žunić, Z. S.. (2016). Air ion and aerosol study in rural dwellings. in Journal of Aerosol Science
Elsevier., 95, 118-134.
https://doi.org/10.1016/j.jaerosci.2016.02.002

Kolarž PM, Vaupotič J, Kobal I, Ujić P, Žunić ZS. Air ion and aerosol study in rural dwellings. in Journal of Aerosol Science. 2016;95:118-134.
doi:10.1016/j.jaerosci.2016.02.002 .

Kolarž, Predrag M., Vaupotič, Janja, Kobal, Ivan, Ujić, Predrag, Žunić, Zora S., "Air ion and aerosol study in rural dwellings" in Journal of Aerosol Science, 95 (2016):118-134,
https://doi.org/10.1016/j.jaerosci.2016.02.002 . .