TY  - JOUR
AU  - Ćurčić, Milica
AU  - Hadžić, Branka
AU  - Gilić, Martina
AU  - Radojević, Vesna
AU  - Bjelajac, Anđelika
AU  - Radović, Ivana
AU  - Timotijević, Dejan
AU  - Romčević, Maja J.
AU  - Trajić, Jelena
AU  - Romčević, Nebojša Ž.
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4459
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.
PB  - Elsevier, Amsterdam
T2  - Physica E-Low-Dimensional Systems & Nanostructures
T1  - Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites
VL  - 115
DO  - 10.1016/j.physe.2019.113708
ER  - 

@article{
author = "Ćurčić, Milica and Hadžić, Branka and Gilić, Martina and Radojević, Vesna and Bjelajac, Anđelika and Radović, Ivana 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.",
publisher = "Elsevier, Amsterdam",
journal = "Physica E-Low-Dimensional Systems & Nanostructures",
title = "Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites",
volume = "115",
doi = "10.1016/j.physe.2019.113708"
}

Ćurčić, M., Hadžić, B., Gilić, M., Radojević, V., Bjelajac, A., Radović, I., 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 & Nanostructures
Elsevier, Amsterdam., 115.
https://doi.org/10.1016/j.physe.2019.113708

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

Ćurčić, Milica, Hadžić, Branka, Gilić, Martina, Radojević, Vesna, Bjelajac, Anđelika, Radović, Ivana, 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 & Nanostructures, 115 (2020),
https://doi.org/10.1016/j.physe.2019.113708 . .

TY  - JOUR
AU  - Stojanović, Dušica
AU  - Brajović, Ljiljana
AU  - Obradović, Vera
AU  - Mijailović, Daniel
AU  - Dramlić, Dragan
AU  - Kojović, Aleksandar
AU  - Uskoković, Petar
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4454
AB  - The composite nanofibers were used as reinforcement in acrylic polymer for the overall enhancement of thermo-mechanical properties, adhesion between fibers and matrix, and fracture toughness of the final nanocomposite since acrylic materials lack of this feature. So, a good balance between hardness/toughness and transparency is obtained with the addition of poly (vinyl butyral) (PVB) and titania (TiO2) nanofibers simultaneously and controlling their contents. Specifically, when compared to that of pure acrylic polymer, the fracture toughness of the PMMA nanocomposite apparently increased 55% with the addition of 3 wt.% titania nanoparticles, while the produced nanocomposite maintained high transmittance above 75-80% in the visible domain. The transmission spectrum modelling of the reinforced fiber materials and hybrid acrylic composites using Mie scattering theory for different particle sizes and particle content is presented. The calculated transmission coefficients versus wavelength are compared with the experimental ones.
PB  - Elsevier B.V.
T2  - Progress in Organic Coatings
T1  - Hybrid acrylic nanocomposites with excellent transparency and hardness/toughness balance
SP  - 105437
VL  - 139
DO  - 10.1016/j.porgcoat.2019.105437
ER  - 

@article{
author = "Stojanović, Dušica and Brajović, Ljiljana and Obradović, Vera and Mijailović, Daniel and Dramlić, Dragan and Kojović, Aleksandar and Uskoković, Petar",
year = "2020",
abstract = "The composite nanofibers were used as reinforcement in acrylic polymer for the overall enhancement of thermo-mechanical properties, adhesion between fibers and matrix, and fracture toughness of the final nanocomposite since acrylic materials lack of this feature. So, a good balance between hardness/toughness and transparency is obtained with the addition of poly (vinyl butyral) (PVB) and titania (TiO2) nanofibers simultaneously and controlling their contents. Specifically, when compared to that of pure acrylic polymer, the fracture toughness of the PMMA nanocomposite apparently increased 55% with the addition of 3 wt.% titania nanoparticles, while the produced nanocomposite maintained high transmittance above 75-80% in the visible domain. The transmission spectrum modelling of the reinforced fiber materials and hybrid acrylic composites using Mie scattering theory for different particle sizes and particle content is presented. The calculated transmission coefficients versus wavelength are compared with the experimental ones.",
publisher = "Elsevier B.V.",
journal = "Progress in Organic Coatings",
title = "Hybrid acrylic nanocomposites with excellent transparency and hardness/toughness balance",
pages = "105437",
volume = "139",
doi = "10.1016/j.porgcoat.2019.105437"
}

Stojanović, D., Brajović, L., Obradović, V., Mijailović, D., Dramlić, D., Kojović, A.,& Uskoković, P.. (2020). Hybrid acrylic nanocomposites with excellent transparency and hardness/toughness balance. in Progress in Organic Coatings
Elsevier B.V.., 139, 105437.
https://doi.org/10.1016/j.porgcoat.2019.105437

Stojanović D, Brajović L, Obradović V, Mijailović D, Dramlić D, Kojović A, Uskoković P. Hybrid acrylic nanocomposites with excellent transparency and hardness/toughness balance. in Progress in Organic Coatings. 2020;139:105437.
doi:10.1016/j.porgcoat.2019.105437 .

Stojanović, Dušica, Brajović, Ljiljana, Obradović, Vera, Mijailović, Daniel, Dramlić, Dragan, Kojović, Aleksandar, Uskoković, Petar, "Hybrid acrylic nanocomposites with excellent transparency and hardness/toughness balance" in Progress in Organic Coatings, 139 (2020):105437,
https://doi.org/10.1016/j.porgcoat.2019.105437 . .

TY  - JOUR
AU  - Abozaid, Rouaida Mohamed
AU  - Lazarević, Zorica Ž.
AU  - Radović, Ivana
AU  - Gilić, Martina
AU  - Sević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Radojević, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4225
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.
PB  - Elsevier Science Bv, Amsterdam
T2  - Optical Materials
T1  - Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications
EP  - 410
SP  - 405
VL  - 92
DO  - 10.1016/j.optmat.2019.05.012
ER  - 

@article{
author = "Abozaid, Rouaida Mohamed and Lazarević, Zorica Ž. and Radović, Ivana and Gilić, Martina and Sević, 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.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Optical Materials",
title = "Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications",
pages = "410-405",
volume = "92",
doi = "10.1016/j.optmat.2019.05.012"
}

Abozaid, R. M., Lazarević, Z. Ž., Radović, I., Gilić, M., Sević, 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
Elsevier Science Bv, Amsterdam., 92, 405-410.
https://doi.org/10.1016/j.optmat.2019.05.012

Abozaid RM, Lazarević ZŽ, Radović I, Gilić M, Sević 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, Gilić, Martina, Sević, 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  - Abozaid, Rouaida Mohamed
AU  - Lazarević, Zorica Z.
AU  - Tomić, Nataša
AU  - Milutinović, Aleksandra
AU  - Sević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Radojević, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4145
AB  - In this article, we report characterization of the layered composite fabricated from Nd3+ doped calcium twigstate single crystal (CaWO4 :Nd3+) and poly(methyl methacrylate) - PMMA with various organic-inorganic interfaces: CaWO4:Nd3+/MPTMS, CaWO4:Nd3+/PMMA and CaWO4:Nd3+/MPTMS/PMMA, a novel approach to optical composite materials. A trivalent neodymium-doped CaWO4 single crystal was grown by the Czochralski method. Poly(methyl methacrylate) - PMMA, was used as a protective polymer coating and (3-mercaptopropyl) trimethoxy silane (MPTMS), with aim to provide better adhesion between the crystal surface and the polymer in the composite. The optical properties of the crystal plates with various layers applied on surface were characterized using FTIR absorption, IR reflectivity, Raman and photoluminescence spectroscopy. Performed tests on the structural, optical and photo-luminescent properties of composites can facilitate the research of potential applications in micro- and optoelectronics. Hardness of CaWO4:Nd3+ before and after surface modification was determined by micro Vickers hardness test. The improved hardness of composite with the use of the MPTMS as an adhesion primer before PMMA was achieved. FTIR spectroscopy indicates the establishing of chemical bonding between single crystal layer, silane and polymer layer. Raman and PL spectroscopy confirm that optical properties of crystal with polymer layers were preserved.
PB  - Elsevier, Amsterdam
T2  - Optical Materials
T1  - Optical properties CaWO4:Nd3+/PMMA composite layered structures
VL  - 96
DO  - 10.1016/j.optmat.2019.109361
ER  - 

@article{
author = "Abozaid, Rouaida Mohamed and Lazarević, Zorica Z. and Tomić, Nataša and Milutinović, Aleksandra and Sević, Dragutin M. and Rabasović, Maja S. and Radojević, Vesna",
year = "2019",
abstract = "In this article, we report characterization of the layered composite fabricated from Nd3+ doped calcium twigstate single crystal (CaWO4 :Nd3+) and poly(methyl methacrylate) - PMMA with various organic-inorganic interfaces: CaWO4:Nd3+/MPTMS, CaWO4:Nd3+/PMMA and CaWO4:Nd3+/MPTMS/PMMA, a novel approach to optical composite materials. A trivalent neodymium-doped CaWO4 single crystal was grown by the Czochralski method. Poly(methyl methacrylate) - PMMA, was used as a protective polymer coating and (3-mercaptopropyl) trimethoxy silane (MPTMS), with aim to provide better adhesion between the crystal surface and the polymer in the composite. The optical properties of the crystal plates with various layers applied on surface were characterized using FTIR absorption, IR reflectivity, Raman and photoluminescence spectroscopy. Performed tests on the structural, optical and photo-luminescent properties of composites can facilitate the research of potential applications in micro- and optoelectronics. Hardness of CaWO4:Nd3+ before and after surface modification was determined by micro Vickers hardness test. The improved hardness of composite with the use of the MPTMS as an adhesion primer before PMMA was achieved. FTIR spectroscopy indicates the establishing of chemical bonding between single crystal layer, silane and polymer layer. Raman and PL spectroscopy confirm that optical properties of crystal with polymer layers were preserved.",
publisher = "Elsevier, Amsterdam",
journal = "Optical Materials",
title = "Optical properties CaWO4:Nd3+/PMMA composite layered structures",
volume = "96",
doi = "10.1016/j.optmat.2019.109361"
}

Abozaid, R. M., Lazarević, Z. Z., Tomić, N., Milutinović, A., Sević, D. M., Rabasović, M. S.,& Radojević, V.. (2019). Optical properties CaWO4:Nd3+/PMMA composite layered structures. in Optical Materials
Elsevier, Amsterdam., 96.
https://doi.org/10.1016/j.optmat.2019.109361

Abozaid RM, Lazarević ZZ, Tomić N, Milutinović A, Sević DM, Rabasović MS, Radojević V. Optical properties CaWO4:Nd3+/PMMA composite layered structures. in Optical Materials. 2019;96.
doi:10.1016/j.optmat.2019.109361 .

Abozaid, Rouaida Mohamed, Lazarević, Zorica Z., Tomić, Nataša, Milutinović, Aleksandra, Sević, Dragutin M., Rabasović, Maja S., Radojević, Vesna, "Optical properties CaWO4:Nd3+/PMMA composite layered structures" in Optical Materials, 96 (2019),
https://doi.org/10.1016/j.optmat.2019.109361 . .

TY  - JOUR
AU  - Abozaid, Rouaida Mohamed
AU  - Lazarević, Zorica Z.
AU  - Radojević, Vesna
AU  - Rabasović, Maja S.
AU  - Sević, Dragutin M.
AU  - Rabasović, Mihailo D.
AU  - Romčević, Nebojša Ž.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3910
AB  - The aim of the current work was to assess obtain a single crystal of calcium tungstate doped with neodymium - (CaWO4:Nd3+), and after that, the crystal was characterized with various spectroscopic methods. The single crystal was grown from the melt using the Czochralski method in air. By optimizing growth conditions,  lt 001 gt -oriented CaWO4:Nd3+ crystalc up to 10 mm in diameter were grown. Number of dislocations in obtained crystal was 10(2) per cm(2). Micro hardness was measured with the Vickers pyramid. Anisotropy in  lt 001 gt  direction was not observed. Selected CaWO4:Nd3+ single crystal was cut into several tiles with the diamond saw. The plates were polished with a diamond paste. The crystal structure is confirmed by X-ray diffraction. The obtained crystal was studied by Raman and infrared spectroscopy. Seven Raman and six IR optical active modes predicted by group theory are observed. FTIR confirmed the occurrence of all the functional groups and bonds in this material. From the FTIR spectrum, a strong peak of 862 cm(-1) has been obtained due to the stretching vibration of WO42- in scheelite structure, and a weak but sharp band at 433 cm(-1) has been noticed due to the metal-oxygen (Ca-O) band. Estimated luminescence lifetime of F-4(5/2) - the I-4(9/2) transition is about 120 mu s; estimated luminescence lifetime of F-4(3/2) - the I-4(9/2) transition is about 140 mu s. All performed investigations show that the obtained CaWO4:Nd3+ single crystal has good optical quality, which was the goal of this work.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Characterization of Neodymium Doped Calcium Tungstate Single Crystal by Raman, IR and Luminescence Spectroscopy
EP  - 455
IS  - 4
SP  - 445
VL  - 50
DO  - 10.2298/SOS1804445A
ER  - 

@article{
author = "Abozaid, Rouaida Mohamed and Lazarević, Zorica Z. and Radojević, Vesna and Rabasović, Maja S. and Sević, Dragutin M. and Rabasović, Mihailo D. and Romčević, Nebojša Ž.",
year = "2018",
abstract = "The aim of the current work was to assess obtain a single crystal of calcium tungstate doped with neodymium - (CaWO4:Nd3+), and after that, the crystal was characterized with various spectroscopic methods. The single crystal was grown from the melt using the Czochralski method in air. By optimizing growth conditions,  lt 001 gt -oriented CaWO4:Nd3+ crystalc up to 10 mm in diameter were grown. Number of dislocations in obtained crystal was 10(2) per cm(2). Micro hardness was measured with the Vickers pyramid. Anisotropy in  lt 001 gt  direction was not observed. Selected CaWO4:Nd3+ single crystal was cut into several tiles with the diamond saw. The plates were polished with a diamond paste. The crystal structure is confirmed by X-ray diffraction. The obtained crystal was studied by Raman and infrared spectroscopy. Seven Raman and six IR optical active modes predicted by group theory are observed. FTIR confirmed the occurrence of all the functional groups and bonds in this material. From the FTIR spectrum, a strong peak of 862 cm(-1) has been obtained due to the stretching vibration of WO42- in scheelite structure, and a weak but sharp band at 433 cm(-1) has been noticed due to the metal-oxygen (Ca-O) band. Estimated luminescence lifetime of F-4(5/2) - the I-4(9/2) transition is about 120 mu s; estimated luminescence lifetime of F-4(3/2) - the I-4(9/2) transition is about 140 mu s. All performed investigations show that the obtained CaWO4:Nd3+ single crystal has good optical quality, which was the goal of this work.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Characterization of Neodymium Doped Calcium Tungstate Single Crystal by Raman, IR and Luminescence Spectroscopy",
pages = "455-445",
number = "4",
volume = "50",
doi = "10.2298/SOS1804445A"
}

Abozaid, R. M., Lazarević, Z. Z., Radojević, V., Rabasović, M. S., Sević, D. M., Rabasović, M. D.,& Romčević, N. Ž.. (2018). Characterization of Neodymium Doped Calcium Tungstate Single Crystal by Raman, IR and Luminescence Spectroscopy. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 50(4), 445-455.
https://doi.org/10.2298/SOS1804445A

Abozaid RM, Lazarević ZZ, Radojević V, Rabasović MS, Sević DM, Rabasović MD, Romčević NŽ. Characterization of Neodymium Doped Calcium Tungstate Single Crystal by Raman, IR and Luminescence Spectroscopy. in Science of Sintering. 2018;50(4):445-455.
doi:10.2298/SOS1804445A .

Abozaid, Rouaida Mohamed, Lazarević, Zorica Z., Radojević, Vesna, Rabasović, Maja S., Sević, Dragutin M., Rabasović, Mihailo D., Romčević, Nebojša Ž., "Characterization of Neodymium Doped Calcium Tungstate Single Crystal by Raman, IR and Luminescence Spectroscopy" in Science of Sintering, 50, no. 4 (2018):445-455,
https://doi.org/10.2298/SOS1804445A . .

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  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5827
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
EP  - 283
SP  - 274
VL  - 106
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",
pages = "283-274",
volume = "106",
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  - Brajović, Ljiljana
AU  - Stojanović, Dušica
AU  - Mihailović, Peđa
AU  - Marković, Smilja
AU  - Romčević, Maja J.
AU  - Mitrić, Miodrag
AU  - Lazović, Vladimir M.
AU  - Dramlić, Dragan
AU  - Petricević, Slobodan
AU  - Romčević, Nebojša Ž.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3669
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.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Preparation and characterization of bismuth germanium oxide (BGO) polymer composites
EP  - 849
SP  - 841
VL  - 695
DO  - 10.1016/j.jallcom.2016.10.140
ER  - 

@article{
author = "Brajović, Ljiljana and Stojanović, Dušica and Mihailović, Peđa and Marković, Smilja and Romčević, Maja J. and Mitrić, Miodrag and Lazović, Vladimir M. and Dramlić, Dragan and Petricević, 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.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Preparation and characterization of bismuth germanium oxide (BGO) polymer composites",
pages = "849-841",
volume = "695",
doi = "10.1016/j.jallcom.2016.10.140"
}

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

Brajović L, Stojanović D, Mihailović P, Marković S, Romčević MJ, Mitrić M, Lazović VM, Dramlić D, Petricević 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 .

Brajović, Ljiljana, Stojanović, Dušica, Mihailović, Peđa, Marković, Smilja, Romčević, Maja J., Mitrić, Miodrag, Lazović, Vladimir M., Dramlić, Dragan, Petricević, 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  - Dimitrijević, Stevan
AU  - Lazarević, Zorica Z.
AU  - Rajčić-Vujasinović, Mirjana M.
AU  - Dimitrijević, Silvana
AU  - Petrović, M.
AU  - Gilić, Martina
AU  - Jokić, Bojan
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3314
AB  - The objective of this study was characterization of anodic film obtained when Ag43Cu37Zn20 alloy was treated electrochemically in 3.5% wt. NaCI under potentiostatic conditions. At the potential of +0.25 V a complex multilayer film is formed. XRD shows that it consists of CuCI and zinc hydroxichlorides with a small amount of Cu2O, probably formed in the film pores. The anodic film is a mixture of Cu2O, CuCI, Zn-5(OH)(8)center dot H2O and beta-Zn(OH)Cl. Phases of the alloy, Ag and Cu rich, show different anodic behavior. It was assumed that all phonon lines in the obtained Raman spectra were of the Lorentzian type, which is one of the common type of lines for this kind of analysis. Phases of Ag, CuCI, fl-Zn(OH)CI, Cu2O and Zn-5(OH)(8)(Cl)(2)center dot H2O were all registered by XRD.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Optoelectronics and Advanced Materials-Rapid Communications
T1  - Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy
EP  - 780
IS  - 9-10
SP  - 777
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3314
ER  - 

@article{
author = "Dimitrijević, Stevan and Lazarević, Zorica Z. and Rajčić-Vujasinović, Mirjana M. and Dimitrijević, Silvana and Petrović, M. and Gilić, Martina and Jokić, Bojan",
year = "2016",
abstract = "The objective of this study was characterization of anodic film obtained when Ag43Cu37Zn20 alloy was treated electrochemically in 3.5% wt. NaCI under potentiostatic conditions. At the potential of +0.25 V a complex multilayer film is formed. XRD shows that it consists of CuCI and zinc hydroxichlorides with a small amount of Cu2O, probably formed in the film pores. The anodic film is a mixture of Cu2O, CuCI, Zn-5(OH)(8)center dot H2O and beta-Zn(OH)Cl. Phases of the alloy, Ag and Cu rich, show different anodic behavior. It was assumed that all phonon lines in the obtained Raman spectra were of the Lorentzian type, which is one of the common type of lines for this kind of analysis. Phases of Ag, CuCI, fl-Zn(OH)CI, Cu2O and Zn-5(OH)(8)(Cl)(2)center dot H2O were all registered by XRD.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Optoelectronics and Advanced Materials-Rapid Communications",
title = "Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy",
pages = "780-777",
number = "9-10",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3314"
}

Dimitrijević, S., Lazarević, Z. Z., Rajčić-Vujasinović, M. M., Dimitrijević, S., Petrović, M., Gilić, M.,& Jokić, B.. (2016). Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy. in Optoelectronics and Advanced Materials-Rapid Communications
Natl Inst Optoelectronics, Bucharest-Magurele., 10(9-10), 777-780.
https://hdl.handle.net/21.15107/rcub_technorep_3314

Dimitrijević S, Lazarević ZZ, Rajčić-Vujasinović MM, Dimitrijević S, Petrović M, Gilić M, Jokić B. Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy. in Optoelectronics and Advanced Materials-Rapid Communications. 2016;10(9-10):777-780.
https://hdl.handle.net/21.15107/rcub_technorep_3314 .

Dimitrijević, Stevan, Lazarević, Zorica Z., Rajčić-Vujasinović, Mirjana M., Dimitrijević, Silvana, Petrović, M., Gilić, Martina, Jokić, Bojan, "Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy" in Optoelectronics and Advanced Materials-Rapid Communications, 10, no. 9-10 (2016):777-780,
https://hdl.handle.net/21.15107/rcub_technorep_3314 .

TY  - JOUR
AU  - Petrović, Miloš
AU  - Mihailović, Peđa
AU  - Brajović, Ljiljana
AU  - Petricević, Slobodan
AU  - Živković, Irena
AU  - Kojović, Aleksandar
AU  - Radojević, Vesna
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3471
AB  - In this paper, the use of intrinsic intensity fiber-optic sensors for structural health monitoring was investigated. Polyethylene-based composite samples with glass mat reinforcement and embedded telecommunication fibers were subjected to impact using high-speed puncture impact tester as a calibration device. Transfer function of the sensor was generated by linking the light intensity modulation depth with the impact force and the impact point to fiber distance. Conditions for transfer function validity were presented. To detect any possible dangerous impact, a net of crossed fibers was proposed and the net spacing for the given material was calculated. Appropriate non-damaging calibration procedure was proposed, as well as the algorithm for locating the impact point. The method for calculating the impact force, the projectile momentum change, and the place of impact was verified by consecutive strikes on the previously calibrated sample. The sensor can also provide information on the time of the impact and an alarm signal if the force exceeds the damaging threshold force.
PB  - IEEE-Inst Electrical Electronics Engineers Inc, Piscataway
T2  - IEEE Sensors Journal
T1  - Intensity Fiber-Optic Sensor for Structural Health Monitoring Calibrated by Impact Tester
EP  - 3053
IS  - 9
SP  - 3047
VL  - 16
DO  - 10.1109/JSEN.2016.2524045
ER  - 

@article{
author = "Petrović, Miloš and Mihailović, Peđa and Brajović, Ljiljana and Petricević, Slobodan and Živković, Irena and Kojović, Aleksandar and Radojević, Vesna",
year = "2016",
abstract = "In this paper, the use of intrinsic intensity fiber-optic sensors for structural health monitoring was investigated. Polyethylene-based composite samples with glass mat reinforcement and embedded telecommunication fibers were subjected to impact using high-speed puncture impact tester as a calibration device. Transfer function of the sensor was generated by linking the light intensity modulation depth with the impact force and the impact point to fiber distance. Conditions for transfer function validity were presented. To detect any possible dangerous impact, a net of crossed fibers was proposed and the net spacing for the given material was calculated. Appropriate non-damaging calibration procedure was proposed, as well as the algorithm for locating the impact point. The method for calculating the impact force, the projectile momentum change, and the place of impact was verified by consecutive strikes on the previously calibrated sample. The sensor can also provide information on the time of the impact and an alarm signal if the force exceeds the damaging threshold force.",
publisher = "IEEE-Inst Electrical Electronics Engineers Inc, Piscataway",
journal = "IEEE Sensors Journal",
title = "Intensity Fiber-Optic Sensor for Structural Health Monitoring Calibrated by Impact Tester",
pages = "3053-3047",
number = "9",
volume = "16",
doi = "10.1109/JSEN.2016.2524045"
}

Petrović, M., Mihailović, P., Brajović, L., Petricević, S., Živković, I., Kojović, A.,& Radojević, V.. (2016). Intensity Fiber-Optic Sensor for Structural Health Monitoring Calibrated by Impact Tester. in IEEE Sensors Journal
IEEE-Inst Electrical Electronics Engineers Inc, Piscataway., 16(9), 3047-3053.
https://doi.org/10.1109/JSEN.2016.2524045

Petrović M, Mihailović P, Brajović L, Petricević S, Živković I, Kojović A, Radojević V. Intensity Fiber-Optic Sensor for Structural Health Monitoring Calibrated by Impact Tester. in IEEE Sensors Journal. 2016;16(9):3047-3053.
doi:10.1109/JSEN.2016.2524045 .

Petrović, Miloš, Mihailović, Peđa, Brajović, Ljiljana, Petricević, Slobodan, Živković, Irena, Kojović, Aleksandar, Radojević, Vesna, "Intensity Fiber-Optic Sensor for Structural Health Monitoring Calibrated by Impact Tester" in IEEE Sensors Journal, 16, no. 9 (2016):3047-3053,
https://doi.org/10.1109/JSEN.2016.2524045 . .

TY  - JOUR
AU  - Elswie, Hana Ibrahim
AU  - Lazarević, Zorica Z.
AU  - Radojević, Vesna
AU  - Gilić, Martina
AU  - Rabasović, Maja S.
AU  - Sević, Dragutin M.
AU  - Romčević, Nebojša Ž.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3420
AB  - It must be noted that the main objective of this study was to obtain single crystals of calcium fluoride - CaF2, and after that the crystals were characterized with various spectroscopic methods. The crystals were grown using the Bridgman technique. By optimizing growth conditions,  lt  111 gt  oriented CaF2 crystals up to 20 mm in diameter were grown. Number of dislocations in CaF2 crystals was 5x10(4) - 2x10(5) per cm(2). Selected CaF2 single crystal is cut into several tiles with the diamond saw. The plates were polished, first with the silicon carbide, then the paraffin oil, and finally with a diamond paste. The obtained crystal w.s studied by Raman and infrared - IR spectroscopy. The crystal structure is confirmed by X-ray diffraction (XRD). One Raman and two IR optical modes predicted by group theory are observed. A low photoluminescence testifies that the concentration of oxygen defects within the host CaF2 is small. All performed investigations show that the obtained CaF2 single crystal has good optical quality, which was the goal of this work.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - The Bridgman Method Growth and Spectroscopic Characterization of Calcium Fluoride Single Crystals
EP  - 341
IS  - 3
SP  - 333
VL  - 48
DO  - 10.2298/SOS1603333E
ER  - 

@article{
author = "Elswie, Hana Ibrahim and Lazarević, Zorica Z. and Radojević, Vesna and Gilić, Martina and Rabasović, Maja S. and Sević, Dragutin M. and Romčević, Nebojša Ž.",
year = "2016",
abstract = "It must be noted that the main objective of this study was to obtain single crystals of calcium fluoride - CaF2, and after that the crystals were characterized with various spectroscopic methods. The crystals were grown using the Bridgman technique. By optimizing growth conditions,  lt  111 gt  oriented CaF2 crystals up to 20 mm in diameter were grown. Number of dislocations in CaF2 crystals was 5x10(4) - 2x10(5) per cm(2). Selected CaF2 single crystal is cut into several tiles with the diamond saw. The plates were polished, first with the silicon carbide, then the paraffin oil, and finally with a diamond paste. The obtained crystal w.s studied by Raman and infrared - IR spectroscopy. The crystal structure is confirmed by X-ray diffraction (XRD). One Raman and two IR optical modes predicted by group theory are observed. A low photoluminescence testifies that the concentration of oxygen defects within the host CaF2 is small. All performed investigations show that the obtained CaF2 single crystal has good optical quality, which was the goal of this work.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "The Bridgman Method Growth and Spectroscopic Characterization of Calcium Fluoride Single Crystals",
pages = "341-333",
number = "3",
volume = "48",
doi = "10.2298/SOS1603333E"
}

Elswie, H. I., Lazarević, Z. Z., Radojević, V., Gilić, M., Rabasović, M. S., Sević, D. M.,& Romčević, N. Ž.. (2016). The Bridgman Method Growth and Spectroscopic Characterization of Calcium Fluoride Single Crystals. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 48(3), 333-341.
https://doi.org/10.2298/SOS1603333E

Elswie HI, Lazarević ZZ, Radojević V, Gilić M, Rabasović MS, Sević DM, Romčević NŽ. The Bridgman Method Growth and Spectroscopic Characterization of Calcium Fluoride Single Crystals. in Science of Sintering. 2016;48(3):333-341.
doi:10.2298/SOS1603333E .

Elswie, Hana Ibrahim, Lazarević, Zorica Z., Radojević, Vesna, Gilić, Martina, Rabasović, Maja S., Sević, Dragutin M., Romčević, Nebojša Ž., "The Bridgman Method Growth and Spectroscopic Characterization of Calcium Fluoride Single Crystals" in Science of Sintering, 48, no. 3 (2016):333-341,
https://doi.org/10.2298/SOS1603333E . .

TY  - JOUR
AU  - Elswie, Hana Ibrahim
AU  - Kostić, Slobodanka
AU  - Radojević, Vesna
AU  - Romčević, Nebojša Ž.
AU  - Hadžić, Branka
AU  - Trajić, Jelena
AU  - Lazarević, Zorica Z.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3334
AB  - Calcium fluoride - CaF2 single crystals were grown using the Bridgman technique. By optimizing growth conditions,  lt 111 gt -oriented CaF2, crystals up to 20 mm in diameter were grown. Number of dislocations in CaF2 crystals which were made by the method of Bridgman was 5x10(4) - 2x10(5) per cm(2). In this paper we used XRD, Raman spectroscopy and the measurement of transmission in the mid IR-range to investigated structural and optical properties of obtained CaF2 single crystals.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Optoelectronics and Advanced Materials-Rapid Communications
T1  - Growth, characterization and optical quality of calcium fluoride single crystals grown by the Bridgman method
EP  - 525
IS  - 7-8
SP  - 522
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3334
ER  - 

@article{
author = "Elswie, Hana Ibrahim and Kostić, Slobodanka and Radojević, Vesna and Romčević, Nebojša Ž. and Hadžić, Branka and Trajić, Jelena and Lazarević, Zorica Z.",
year = "2016",
abstract = "Calcium fluoride - CaF2 single crystals were grown using the Bridgman technique. By optimizing growth conditions,  lt 111 gt -oriented CaF2, crystals up to 20 mm in diameter were grown. Number of dislocations in CaF2 crystals which were made by the method of Bridgman was 5x10(4) - 2x10(5) per cm(2). In this paper we used XRD, Raman spectroscopy and the measurement of transmission in the mid IR-range to investigated structural and optical properties of obtained CaF2 single crystals.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Optoelectronics and Advanced Materials-Rapid Communications",
title = "Growth, characterization and optical quality of calcium fluoride single crystals grown by the Bridgman method",
pages = "525-522",
number = "7-8",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3334"
}

Elswie, H. I., Kostić, S., Radojević, V., Romčević, N. Ž., Hadžić, B., Trajić, J.,& Lazarević, Z. Z.. (2016). Growth, characterization and optical quality of calcium fluoride single crystals grown by the Bridgman method. in Optoelectronics and Advanced Materials-Rapid Communications
Natl Inst Optoelectronics, Bucharest-Magurele., 10(7-8), 522-525.
https://hdl.handle.net/21.15107/rcub_technorep_3334

Elswie HI, Kostić S, Radojević V, Romčević NŽ, Hadžić B, Trajić J, Lazarević ZZ. Growth, characterization and optical quality of calcium fluoride single crystals grown by the Bridgman method. in Optoelectronics and Advanced Materials-Rapid Communications. 2016;10(7-8):522-525.
https://hdl.handle.net/21.15107/rcub_technorep_3334 .

Elswie, Hana Ibrahim, Kostić, Slobodanka, Radojević, Vesna, Romčević, Nebojša Ž., Hadžić, Branka, Trajić, Jelena, Lazarević, Zorica Z., "Growth, characterization and optical quality of calcium fluoride single crystals grown by the Bridgman method" in Optoelectronics and Advanced Materials-Rapid Communications, 10, no. 7-8 (2016):522-525,
https://hdl.handle.net/21.15107/rcub_technorep_3334 .

TY  - JOUR
AU  - Ostojić, Stanko M.
AU  - Šašić, Rajko
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3450
AB  - A simple model of surrounding gate short-channel nanowire MOSFET current-voltage characteristic has been proposed. This model belongs to the class of drift-diffusion ones; it has been inspired by the corresponding long-channel models and should be considered as their naturally constructed extension. The accuracy of the developed model has been verified by comparison with available simulation results as well as with previous models calculations.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Optoelectronics and Advanced Materials-Rapid Communications
T1  - A simple model of current-voltage characteristic for surrounding gate short-channel nanowire MOSFET
EP  - 54
IS  - 1-2
SP  - 50
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3450
ER  - 

@article{
author = "Ostojić, Stanko M. and Šašić, Rajko",
year = "2016",
abstract = "A simple model of surrounding gate short-channel nanowire MOSFET current-voltage characteristic has been proposed. This model belongs to the class of drift-diffusion ones; it has been inspired by the corresponding long-channel models and should be considered as their naturally constructed extension. The accuracy of the developed model has been verified by comparison with available simulation results as well as with previous models calculations.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Optoelectronics and Advanced Materials-Rapid Communications",
title = "A simple model of current-voltage characteristic for surrounding gate short-channel nanowire MOSFET",
pages = "54-50",
number = "1-2",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3450"
}

Ostojić, S. M.,& Šašić, R.. (2016). A simple model of current-voltage characteristic for surrounding gate short-channel nanowire MOSFET. in Optoelectronics and Advanced Materials-Rapid Communications
Natl Inst Optoelectronics, Bucharest-Magurele., 10(1-2), 50-54.
https://hdl.handle.net/21.15107/rcub_technorep_3450

Ostojić SM, Šašić R. A simple model of current-voltage characteristic for surrounding gate short-channel nanowire MOSFET. in Optoelectronics and Advanced Materials-Rapid Communications. 2016;10(1-2):50-54.
https://hdl.handle.net/21.15107/rcub_technorep_3450 .

Ostojić, Stanko M., Šašić, Rajko, "A simple model of current-voltage characteristic for surrounding gate short-channel nanowire MOSFET" in Optoelectronics and Advanced Materials-Rapid Communications, 10, no. 1-2 (2016):50-54,
https://hdl.handle.net/21.15107/rcub_technorep_3450 .

TY  - CONF
AU  - Lazarević, Zorica
AU  - Dimitrijević, Stevan
AU  - Mitrić, Miodrag
AU  - Dimitrijević, Silvana
AU  - Petrović, Milica
AU  - Gilić, Martina
AU  - Romčević, Nebojša
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7002
AB  - The aim of the present work is characterization of electrochemically treated Ag43-Cu37-Zn20 alloy in near neutral chloride solutions by the X-ray diffraction and Raman spectroscopy. At potential of +0.25 V, a complex multilayer film is formed. XRD shows that it consists of CuCl and zinc hydroxichlorides with small amount of Cu2O, probably formed in the film pores. It can be concluded that the Raman spectroscopy is observed almost all the modes that are registered with the XRD analysis.
PB  - Bor : Mining and Metallurgy Institute
C3  - Proceedings / 47th International October Conference on Mining and Metallurgy - IOC 2015, 4th-6th October 2015, Bor Lake, Serbia
T1  - RAMAN SPECROSCOPY STUDY OF ANODIC FILM ON Ag43Cu37Zn20 ALLOY
EP  - 158
SP  - 155
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7002
ER  - 

@conference{
author = "Lazarević, Zorica and Dimitrijević, Stevan and Mitrić, Miodrag and Dimitrijević, Silvana and Petrović, Milica and Gilić, Martina and Romčević, Nebojša",
year = "2015",
abstract = "The aim of the present work is characterization of electrochemically treated Ag43-Cu37-Zn20 alloy in near neutral chloride solutions by the X-ray diffraction and Raman spectroscopy. At potential of +0.25 V, a complex multilayer film is formed. XRD shows that it consists of CuCl and zinc hydroxichlorides with small amount of Cu2O, probably formed in the film pores. It can be concluded that the Raman spectroscopy is observed almost all the modes that are registered with the XRD analysis.",
publisher = "Bor : Mining and Metallurgy Institute",
journal = "Proceedings / 47th International October Conference on Mining and Metallurgy - IOC 2015, 4th-6th October 2015, Bor Lake, Serbia",
title = "RAMAN SPECROSCOPY STUDY OF ANODIC FILM ON Ag43Cu37Zn20 ALLOY",
pages = "158-155",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7002"
}

Lazarević, Z., Dimitrijević, S., Mitrić, M., Dimitrijević, S., Petrović, M., Gilić, M.,& Romčević, N.. (2015). RAMAN SPECROSCOPY STUDY OF ANODIC FILM ON Ag43Cu37Zn20 ALLOY. in Proceedings / 47th International October Conference on Mining and Metallurgy - IOC 2015, 4th-6th October 2015, Bor Lake, Serbia
Bor : Mining and Metallurgy Institute., 155-158.
https://hdl.handle.net/21.15107/rcub_technorep_7002

Lazarević Z, Dimitrijević S, Mitrić M, Dimitrijević S, Petrović M, Gilić M, Romčević N. RAMAN SPECROSCOPY STUDY OF ANODIC FILM ON Ag43Cu37Zn20 ALLOY. in Proceedings / 47th International October Conference on Mining and Metallurgy - IOC 2015, 4th-6th October 2015, Bor Lake, Serbia. 2015;:155-158.
https://hdl.handle.net/21.15107/rcub_technorep_7002 .

Lazarević, Zorica, Dimitrijević, Stevan, Mitrić, Miodrag, Dimitrijević, Silvana, Petrović, Milica, Gilić, Martina, Romčević, Nebojša, "RAMAN SPECROSCOPY STUDY OF ANODIC FILM ON Ag43Cu37Zn20 ALLOY" in Proceedings / 47th International October Conference on Mining and Metallurgy - IOC 2015, 4th-6th October 2015, Bor Lake, Serbia (2015):155-158,
https://hdl.handle.net/21.15107/rcub_technorep_7002 .

TY  - JOUR
AU  - Kostić, S.
AU  - Lazarević, Zorica Z.
AU  - Radojević, Vesna
AU  - Milutinović, A.
AU  - Romčević, Maja J.
AU  - Romčević, Nebojša Ž.
AU  - Valčić, Andreja
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3044
AB  - Yttrium aluminum garnet (YAG, Y3Al5O12) and yttrium aluminum garnet doped with neodymium (Nd:YAG) single crystals were grown by the Czochralski technique. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. As a result of our experiments, the transparent YAG and pale pink Nd:YAG single crystals were produced. The obtained crystals were studied by X-ray diffraction, Raman and IR spectroscopy. The crystal structure was confirmed by XRD. The 15 Raman and 17 IR modes were observed. The Raman and IR spectroscopy results are in accordance with X-ray diffraction analysis. The obtained YAG and Nd:YAG single crystals were without core and of good optical quality. The absence of a core was confirmed by viewing polished crystal slices. Also, it is important to emphasize that the obtained Nd:YAG single crystal has a concentration of 0.8 wt.% Nd3(+) that is characteristic for laser materials.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Materials Research Bulletin
T1  - Study of structural and optical properties of YAG and Nd:YAG single crystals
EP  - 87
SP  - 80
VL  - 63
DO  - 10.1016/j.materresbull.2014.11.033
ER  - 

@article{
author = "Kostić, S. and Lazarević, Zorica Z. and Radojević, Vesna and Milutinović, A. and Romčević, Maja J. and Romčević, Nebojša Ž. and Valčić, Andreja",
year = "2015",
abstract = "Yttrium aluminum garnet (YAG, Y3Al5O12) and yttrium aluminum garnet doped with neodymium (Nd:YAG) single crystals were grown by the Czochralski technique. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. As a result of our experiments, the transparent YAG and pale pink Nd:YAG single crystals were produced. The obtained crystals were studied by X-ray diffraction, Raman and IR spectroscopy. The crystal structure was confirmed by XRD. The 15 Raman and 17 IR modes were observed. The Raman and IR spectroscopy results are in accordance with X-ray diffraction analysis. The obtained YAG and Nd:YAG single crystals were without core and of good optical quality. The absence of a core was confirmed by viewing polished crystal slices. Also, it is important to emphasize that the obtained Nd:YAG single crystal has a concentration of 0.8 wt.% Nd3(+) that is characteristic for laser materials.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Materials Research Bulletin",
title = "Study of structural and optical properties of YAG and Nd:YAG single crystals",
pages = "87-80",
volume = "63",
doi = "10.1016/j.materresbull.2014.11.033"
}

Kostić, S., Lazarević, Z. Z., Radojević, V., Milutinović, A., Romčević, M. J., Romčević, N. Ž.,& Valčić, A.. (2015). Study of structural and optical properties of YAG and Nd:YAG single crystals. in Materials Research Bulletin
Pergamon-Elsevier Science Ltd, Oxford., 63, 80-87.
https://doi.org/10.1016/j.materresbull.2014.11.033

Kostić S, Lazarević ZZ, Radojević V, Milutinović A, Romčević MJ, Romčević NŽ, Valčić A. Study of structural and optical properties of YAG and Nd:YAG single crystals. in Materials Research Bulletin. 2015;63:80-87.
doi:10.1016/j.materresbull.2014.11.033 .

Kostić, S., Lazarević, Zorica Z., Radojević, Vesna, Milutinović, A., Romčević, Maja J., Romčević, Nebojša Ž., Valčić, Andreja, "Study of structural and optical properties of YAG and Nd:YAG single crystals" in Materials Research Bulletin, 63 (2015):80-87,
https://doi.org/10.1016/j.materresbull.2014.11.033 . .

TY  - JOUR
AU  - Kostić, S.
AU  - Lazarević, Zorica Z.
AU  - Romčević, Maja J.
AU  - Radojević, Vesna
AU  - Milutinović, A.
AU  - Stanisić, G.
AU  - Gilić, Martina
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2714
AB  - In this paper, we used the Czochralski method to obtain good quality yttrium aluminium garnet (YAG, Y3Al5O12) and yttrium aluminium garnet doped with neodymium (Nd: YAG) crystals. The investigations were based on the growth mechanisms and the shape of the liquid/solid interface crystallization front on the crystal properties and incorporation of Nd3+ ions. The obtained single YAG and Nd: YAG crystals were studied by use of x-ray diffraction, Raman and IR spectroscopy. There are strong metal oxygen vibrations in the region of 650-800 cm(-1) which are characteristics of Al-O bond: peaks at 784/854, 719/763 and 691/707 cm(-1) correspond to asymmetric stretching vibrations in tetrahedral arrangement. Peaks at 566/582, 510/547 and 477/505 cm(-1) are asymmetric stretching vibrations and 453/483 cm(-1) is the symmetric vibration of the Al-O bond in octahedral arrangements of the garnet structure. Lower energy peaks correspond to translation and vibration of cations in different coordinations-tetrahedral, octahedral and dodecahedral in the case of the lowest modes.
PB  - IOP Publishing Ltd, Bristol
T2  - Physica Scripta
T1  - Spectroscopic characterization of YAG and Nd:YAG single crystals
VL  - T162
DO  - 10.1088/0031-8949/2014/T162/014026
ER  - 

@article{
author = "Kostić, S. and Lazarević, Zorica Z. and Romčević, Maja J. and Radojević, Vesna and Milutinović, A. and Stanisić, G. and Gilić, Martina",
year = "2014",
abstract = "In this paper, we used the Czochralski method to obtain good quality yttrium aluminium garnet (YAG, Y3Al5O12) and yttrium aluminium garnet doped with neodymium (Nd: YAG) crystals. The investigations were based on the growth mechanisms and the shape of the liquid/solid interface crystallization front on the crystal properties and incorporation of Nd3+ ions. The obtained single YAG and Nd: YAG crystals were studied by use of x-ray diffraction, Raman and IR spectroscopy. There are strong metal oxygen vibrations in the region of 650-800 cm(-1) which are characteristics of Al-O bond: peaks at 784/854, 719/763 and 691/707 cm(-1) correspond to asymmetric stretching vibrations in tetrahedral arrangement. Peaks at 566/582, 510/547 and 477/505 cm(-1) are asymmetric stretching vibrations and 453/483 cm(-1) is the symmetric vibration of the Al-O bond in octahedral arrangements of the garnet structure. Lower energy peaks correspond to translation and vibration of cations in different coordinations-tetrahedral, octahedral and dodecahedral in the case of the lowest modes.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Physica Scripta",
title = "Spectroscopic characterization of YAG and Nd:YAG single crystals",
volume = "T162",
doi = "10.1088/0031-8949/2014/T162/014026"
}

Kostić, S., Lazarević, Z. Z., Romčević, M. J., Radojević, V., Milutinović, A., Stanisić, G.,& Gilić, M.. (2014). Spectroscopic characterization of YAG and Nd:YAG single crystals. in Physica Scripta
IOP Publishing Ltd, Bristol., T162.
https://doi.org/10.1088/0031-8949/2014/T162/014026

Kostić S, Lazarević ZZ, Romčević MJ, Radojević V, Milutinović A, Stanisić G, Gilić M. Spectroscopic characterization of YAG and Nd:YAG single crystals. in Physica Scripta. 2014;T162.
doi:10.1088/0031-8949/2014/T162/014026 .

Kostić, S., Lazarević, Zorica Z., Romčević, Maja J., Radojević, Vesna, Milutinović, A., Stanisić, G., Gilić, Martina, "Spectroscopic characterization of YAG and Nd:YAG single crystals" in Physica Scripta, T162 (2014),
https://doi.org/10.1088/0031-8949/2014/T162/014026 . .

TY  - JOUR
AU  - Ostojić, Stanko M.
AU  - Šašić, Rajko
AU  - Lukić, Petar M.
AU  - Abood, Imhimmad
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2696
AB  - Based on the approximate solution of Poisson's equation in the case of a p-doped silicon body, an improved current-voltage characteristic model of long-channel cylindrical surrounding-gate Si nanowire MOSFET is proposed. The improvement itself considers a realistic description of the carriers' mobility degradation owing to the radial electric field and a more detailed and accurate analytical solution to the 1D Poisson's equation than the solutions available in the literature. The model is valid in the wide range of the doping concentration and shows a satisfactory level of agreement with the two-dimensional simulation results and the former models. It can also be applied to different operation regimes such as subthreshold, linear and saturation regimes.
PB  - IOP Publishing Ltd, Bristol
T2  - Physica Scripta
T1  - Surrounding gate long channel nanowire MOSFET modelling-extended analysis
IS  - 11
VL  - 89
DO  - 10.1088/0031-8949/89/11/115802
ER  - 

@article{
author = "Ostojić, Stanko M. and Šašić, Rajko and Lukić, Petar M. and Abood, Imhimmad",
year = "2014",
abstract = "Based on the approximate solution of Poisson's equation in the case of a p-doped silicon body, an improved current-voltage characteristic model of long-channel cylindrical surrounding-gate Si nanowire MOSFET is proposed. The improvement itself considers a realistic description of the carriers' mobility degradation owing to the radial electric field and a more detailed and accurate analytical solution to the 1D Poisson's equation than the solutions available in the literature. The model is valid in the wide range of the doping concentration and shows a satisfactory level of agreement with the two-dimensional simulation results and the former models. It can also be applied to different operation regimes such as subthreshold, linear and saturation regimes.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Physica Scripta",
title = "Surrounding gate long channel nanowire MOSFET modelling-extended analysis",
number = "11",
volume = "89",
doi = "10.1088/0031-8949/89/11/115802"
}

Ostojić, S. M., Šašić, R., Lukić, P. M.,& Abood, I.. (2014). Surrounding gate long channel nanowire MOSFET modelling-extended analysis. in Physica Scripta
IOP Publishing Ltd, Bristol., 89(11).
https://doi.org/10.1088/0031-8949/89/11/115802

Ostojić SM, Šašić R, Lukić PM, Abood I. Surrounding gate long channel nanowire MOSFET modelling-extended analysis. in Physica Scripta. 2014;89(11).
doi:10.1088/0031-8949/89/11/115802 .

Ostojić, Stanko M., Šašić, Rajko, Lukić, Petar M., Abood, Imhimmad, "Surrounding gate long channel nanowire MOSFET modelling-extended analysis" in Physica Scripta, 89, no. 11 (2014),
https://doi.org/10.1088/0031-8949/89/11/115802 . .

TY  - JOUR
AU  - Lukić, Petar M.
AU  - Šašić, Rajko
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2564
AB  - In this paper, field effect transistor with active area made of carbon nano tubes (CNT FET), is investigated. At the beginning, CNT characteristics, structure and possibilities of their implementation as a FET channel, are presented. The new model of CNT FET current-voltage characteristics is developed and presented. In the model, capacitances of all interfaces are included. Special segment of this model is carrier's mobility model. Modeling of carrier's mobility is exposed. Two different carriers' mobility models are presented: analytical model that is developed and proposed and empirical model that is introduced. All models are modular and relatively simple. The results obtained by using proposed models are in very good agreement with already known ones.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Journal of Optoelectronics and Advanced Materials
T1  - Modeling of carriers mobility impact on CNT FIET current-voltage characteristics
EP  - 1424
IS  - 11-12
SP  - 1418
VL  - 16
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2564
ER  - 

@article{
author = "Lukić, Petar M. and Šašić, Rajko",
year = "2014",
abstract = "In this paper, field effect transistor with active area made of carbon nano tubes (CNT FET), is investigated. At the beginning, CNT characteristics, structure and possibilities of their implementation as a FET channel, are presented. The new model of CNT FET current-voltage characteristics is developed and presented. In the model, capacitances of all interfaces are included. Special segment of this model is carrier's mobility model. Modeling of carrier's mobility is exposed. Two different carriers' mobility models are presented: analytical model that is developed and proposed and empirical model that is introduced. All models are modular and relatively simple. The results obtained by using proposed models are in very good agreement with already known ones.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "Modeling of carriers mobility impact on CNT FIET current-voltage characteristics",
pages = "1424-1418",
number = "11-12",
volume = "16",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2564"
}

Lukić, P. M.,& Šašić, R.. (2014). Modeling of carriers mobility impact on CNT FIET current-voltage characteristics. in Journal of Optoelectronics and Advanced Materials
Natl Inst Optoelectronics, Bucharest-Magurele., 16(11-12), 1418-1424.
https://hdl.handle.net/21.15107/rcub_technorep_2564

Lukić PM, Šašić R. Modeling of carriers mobility impact on CNT FIET current-voltage characteristics. in Journal of Optoelectronics and Advanced Materials. 2014;16(11-12):1418-1424.
https://hdl.handle.net/21.15107/rcub_technorep_2564 .

Lukić, Petar M., Šašić, Rajko, "Modeling of carriers mobility impact on CNT FIET current-voltage characteristics" in Journal of Optoelectronics and Advanced Materials, 16, no. 11-12 (2014):1418-1424,
https://hdl.handle.net/21.15107/rcub_technorep_2564 .

TY  - JOUR
AU  - Alkhem, Abdel
AU  - Šašić, Rajko
AU  - Lukić, Petar M.
AU  - Ostojić, Stanko M.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2781
AB  - A conventional vertical double implanted metal-oxide-semiconductor structure contains two n+ regions beneath two symmetrically posed source biases. These n+ regions are surrounded by a p-doped layer, which itself has an abrupt transition to the vertical drift region. Owing to the existence of these p-layers, the 'drift' region has varying cross sections: it is reduced going upward from the bottom (drain bias) to the top. Such a drift region is usually described either by a three piecewise model, which begins with constant cross section that at some point starts narrowing until at some other point it becomes reduced to the region between two p-regions, or by a two piecewise model, whose narrowing region starts right above the drain bias and finishes in the manner described before. The crucial geometrical parameters of the flow profile in the drift region, such as the slope of the cross-section reducing region and the length of the narrowest (accumulation) region are widely used but never determined, or even estimated, in the available literature. In this paper, the least-action principle has been utilized successfully in order to determine the exact values of these parameters and so make the existing models closed. The proof has also been provided, which shows that the three piecewise model described the flow profile better than a two piecewise model more adequately as long as it was permitted by the length of the entire drift region (the energy necessary to restore the specific value of drain current is smaller than for the three piecewise model). The two piecewise model can be accepted in practical calculations only for higher values of drain current far from a triode regime.
PB  - IOP Publishing Ltd, Bristol
T2  - Physica Scripta
T1  - 4H-SiC vertical double implanted metal-oxide-semiconductor drift region-energy aspects of its formation and analysis
IS  - 1
VL  - 89
DO  - 10.1088/0031-8949/89/01/015803
ER  - 

@article{
author = "Alkhem, Abdel and Šašić, Rajko and Lukić, Petar M. and Ostojić, Stanko M.",
year = "2014",
abstract = "A conventional vertical double implanted metal-oxide-semiconductor structure contains two n+ regions beneath two symmetrically posed source biases. These n+ regions are surrounded by a p-doped layer, which itself has an abrupt transition to the vertical drift region. Owing to the existence of these p-layers, the 'drift' region has varying cross sections: it is reduced going upward from the bottom (drain bias) to the top. Such a drift region is usually described either by a three piecewise model, which begins with constant cross section that at some point starts narrowing until at some other point it becomes reduced to the region between two p-regions, or by a two piecewise model, whose narrowing region starts right above the drain bias and finishes in the manner described before. The crucial geometrical parameters of the flow profile in the drift region, such as the slope of the cross-section reducing region and the length of the narrowest (accumulation) region are widely used but never determined, or even estimated, in the available literature. In this paper, the least-action principle has been utilized successfully in order to determine the exact values of these parameters and so make the existing models closed. The proof has also been provided, which shows that the three piecewise model described the flow profile better than a two piecewise model more adequately as long as it was permitted by the length of the entire drift region (the energy necessary to restore the specific value of drain current is smaller than for the three piecewise model). The two piecewise model can be accepted in practical calculations only for higher values of drain current far from a triode regime.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Physica Scripta",
title = "4H-SiC vertical double implanted metal-oxide-semiconductor drift region-energy aspects of its formation and analysis",
number = "1",
volume = "89",
doi = "10.1088/0031-8949/89/01/015803"
}

Alkhem, A., Šašić, R., Lukić, P. M.,& Ostojić, S. M.. (2014). 4H-SiC vertical double implanted metal-oxide-semiconductor drift region-energy aspects of its formation and analysis. in Physica Scripta
IOP Publishing Ltd, Bristol., 89(1).
https://doi.org/10.1088/0031-8949/89/01/015803

Alkhem A, Šašić R, Lukić PM, Ostojić SM. 4H-SiC vertical double implanted metal-oxide-semiconductor drift region-energy aspects of its formation and analysis. in Physica Scripta. 2014;89(1).
doi:10.1088/0031-8949/89/01/015803 .

Alkhem, Abdel, Šašić, Rajko, Lukić, Petar M., Ostojić, Stanko M., "4H-SiC vertical double implanted metal-oxide-semiconductor drift region-energy aspects of its formation and analysis" in Physica Scripta, 89, no. 1 (2014),
https://doi.org/10.1088/0031-8949/89/01/015803 . .

TY  - JOUR
AU  - Lazarević, Zorica Z.
AU  - Kostić, S.
AU  - Radojević, Vesna
AU  - Romčević, Maja J.
AU  - Gilić, Martina
AU  - Petrović-Damjanović, M.
AU  - Romčević, Nebojša Ž.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2459
AB  - In this work, single crystals of bismuth silicon oxide (BSO; Bi12SiO20) have been grown by the Czochralski method. The growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12SiO20 has been investigated by x-ray diffraction (XRD), and Raman and Fourier transform infrared spectroscopy (FTIR) spectroscopy. The results obtained are discussed and compared with the published data. The pale yellow Bi12SiO20 single crystals prepared were without cores. Using spectroscopic measurements 19 Raman and 5 IR modes were observed.
PB  - IOP Publishing Ltd, Bristol
T2  - Physica Scripta
T1  - Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique
VL  - T157
DO  - 10.1088/0031-8949/2013/T157/014046
ER  - 

@article{
author = "Lazarević, Zorica Z. and Kostić, S. and Radojević, Vesna and Romčević, Maja J. and Gilić, Martina and Petrović-Damjanović, M. and Romčević, Nebojša Ž.",
year = "2013",
abstract = "In this work, single crystals of bismuth silicon oxide (BSO; Bi12SiO20) have been grown by the Czochralski method. The growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12SiO20 has been investigated by x-ray diffraction (XRD), and Raman and Fourier transform infrared spectroscopy (FTIR) spectroscopy. The results obtained are discussed and compared with the published data. The pale yellow Bi12SiO20 single crystals prepared were without cores. Using spectroscopic measurements 19 Raman and 5 IR modes were observed.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Physica Scripta",
title = "Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique",
volume = "T157",
doi = "10.1088/0031-8949/2013/T157/014046"
}

Lazarević, Z. Z., Kostić, S., Radojević, V., Romčević, M. J., Gilić, M., Petrović-Damjanović, M.,& Romčević, N. Ž.. (2013). Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique. in Physica Scripta
IOP Publishing Ltd, Bristol., T157.
https://doi.org/10.1088/0031-8949/2013/T157/014046

Lazarević ZZ, Kostić S, Radojević V, Romčević MJ, Gilić M, Petrović-Damjanović M, Romčević NŽ. Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique. in Physica Scripta. 2013;T157.
doi:10.1088/0031-8949/2013/T157/014046 .

Lazarević, Zorica Z., Kostić, S., Radojević, Vesna, Romčević, Maja J., Gilić, Martina, Petrović-Damjanović, M., Romčević, Nebojša Ž., "Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique" in Physica Scripta, T157 (2013),
https://doi.org/10.1088/0031-8949/2013/T157/014046 . .

TY  - JOUR
AU  - Lazarević, Zorica Z.
AU  - Kostić, S.
AU  - Radojević, Vesna
AU  - Romčević, Maja J.
AU  - Hadžić, Branka
AU  - Trajić, Jelena
AU  - Romčević, Nebojša Ž.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2549
AB  - In this work single crystals of bismuth germanium oxide (Bi12GeO20) have been grown by the Czochralski method. Growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12GeO20 has been investigated by X-ray diffraction, Raman and FTIR spectroscopy. The obtained results are discussed and compared with published data. On the basis of the measurements by Raman spectroscopy, we observed 15 modes.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Optoelectronics and Advanced Materials-Rapid Communications
T1  - Spectroscopy study of Bi12GeO20 single crystals
EP  - 61
IS  - 1-2
SP  - 58
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2549
ER  - 

@article{
author = "Lazarević, Zorica Z. and Kostić, S. and Radojević, Vesna and Romčević, Maja J. and Hadžić, Branka and Trajić, Jelena and Romčević, Nebojša Ž.",
year = "2013",
abstract = "In this work single crystals of bismuth germanium oxide (Bi12GeO20) have been grown by the Czochralski method. Growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12GeO20 has been investigated by X-ray diffraction, Raman and FTIR spectroscopy. The obtained results are discussed and compared with published data. On the basis of the measurements by Raman spectroscopy, we observed 15 modes.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Optoelectronics and Advanced Materials-Rapid Communications",
title = "Spectroscopy study of Bi12GeO20 single crystals",
pages = "61-58",
number = "1-2",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2549"
}

Lazarević, Z. Z., Kostić, S., Radojević, V., Romčević, M. J., Hadžić, B., Trajić, J.,& Romčević, N. Ž.. (2013). Spectroscopy study of Bi12GeO20 single crystals. in Optoelectronics and Advanced Materials-Rapid Communications
Natl Inst Optoelectronics, Bucharest-Magurele., 7(1-2), 58-61.
https://hdl.handle.net/21.15107/rcub_technorep_2549

Lazarević ZZ, Kostić S, Radojević V, Romčević MJ, Hadžić B, Trajić J, Romčević NŽ. Spectroscopy study of Bi12GeO20 single crystals. in Optoelectronics and Advanced Materials-Rapid Communications. 2013;7(1-2):58-61.
https://hdl.handle.net/21.15107/rcub_technorep_2549 .

Lazarević, Zorica Z., Kostić, S., Radojević, Vesna, Romčević, Maja J., Hadžić, Branka, Trajić, Jelena, Romčević, Nebojša Ž., "Spectroscopy study of Bi12GeO20 single crystals" in Optoelectronics and Advanced Materials-Rapid Communications, 7, no. 1-2 (2013):58-61,
https://hdl.handle.net/21.15107/rcub_technorep_2549 .

TY  - JOUR
AU  - Abood, Imhimmad
AU  - Šašić, Rajko
AU  - Ostojić, Stanko M.
AU  - Lukić, Petar M.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2396
AB  - Silicon carbide (H-4-SiC as well as H-6-SiC) is known to be an anisotropic material. Among others, the transport parameters in the c-direction such as low field mobility and saturation velocity, are moderately different from those in the a- and b-directions in the case of H-4-SiC, while this difference becomes remarkable in the case of H-6-SiC. The aim of this study is to investigate the effect of this anisotropy on an analytical model for "drift region voltage drop" in a H-4-SiC vertical double implanted metal oxide semiconductor (VDIMOS) structure.
PB  - IOP Publishing Ltd, Bristol
T2  - Japanese Journal of Applied Physics
T1  - Analytical Model for Drift Region Voltage Drop in 4H-SiC Vertical Double Implanted Metal Oxide Semiconductor Field Effect Transistor: Effect of Anisotropy
IS  - 9
VL  - 52
DO  - 10.7567/JJAP.52.094302
ER  - 

@article{
author = "Abood, Imhimmad and Šašić, Rajko and Ostojić, Stanko M. and Lukić, Petar M.",
year = "2013",
abstract = "Silicon carbide (H-4-SiC as well as H-6-SiC) is known to be an anisotropic material. Among others, the transport parameters in the c-direction such as low field mobility and saturation velocity, are moderately different from those in the a- and b-directions in the case of H-4-SiC, while this difference becomes remarkable in the case of H-6-SiC. The aim of this study is to investigate the effect of this anisotropy on an analytical model for "drift region voltage drop" in a H-4-SiC vertical double implanted metal oxide semiconductor (VDIMOS) structure.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Japanese Journal of Applied Physics",
title = "Analytical Model for Drift Region Voltage Drop in 4H-SiC Vertical Double Implanted Metal Oxide Semiconductor Field Effect Transistor: Effect of Anisotropy",
number = "9",
volume = "52",
doi = "10.7567/JJAP.52.094302"
}

Abood, I., Šašić, R., Ostojić, S. M.,& Lukić, P. M.. (2013). Analytical Model for Drift Region Voltage Drop in 4H-SiC Vertical Double Implanted Metal Oxide Semiconductor Field Effect Transistor: Effect of Anisotropy. in Japanese Journal of Applied Physics
IOP Publishing Ltd, Bristol., 52(9).
https://doi.org/10.7567/JJAP.52.094302

Abood I, Šašić R, Ostojić SM, Lukić PM. Analytical Model for Drift Region Voltage Drop in 4H-SiC Vertical Double Implanted Metal Oxide Semiconductor Field Effect Transistor: Effect of Anisotropy. in Japanese Journal of Applied Physics. 2013;52(9).
doi:10.7567/JJAP.52.094302 .

Abood, Imhimmad, Šašić, Rajko, Ostojić, Stanko M., Lukić, Petar M., "Analytical Model for Drift Region Voltage Drop in 4H-SiC Vertical Double Implanted Metal Oxide Semiconductor Field Effect Transistor: Effect of Anisotropy" in Japanese Journal of Applied Physics, 52, no. 9 (2013),
https://doi.org/10.7567/JJAP.52.094302 . .

TY  - JOUR
AU  - Abood, Imhammad
AU  - Lukić, Petar M.
AU  - Šašić, Rajko
AU  - Alkoash, Abed Alkhem
AU  - Ostojić, Stanko M.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2417
AB  - 4H-SiC VDMOS is a peculiar semiconductor structure with two considerably different recognized regions. One of them is a vertical drift region, whereas the other one appears as a horizontal channel with its left and right sections corresponding to source bias. In each of these regions current-voltage characterisic can become saturated regardless of the status of the other region, thus making possible several operation modes of the considered devices. The investigation of the onset of these saturations in their order of appearance is the goal of this paper.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Optoelectronics and Advanced Materials-Rapid Communications
T1  - 4H-SiC VDMOS - drift-region saturation, channel saturation and their order of appearance
EP  - 333
IS  - 5-6
SP  - 329
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2417
ER  - 

@article{
author = "Abood, Imhammad and Lukić, Petar M. and Šašić, Rajko and Alkoash, Abed Alkhem and Ostojić, Stanko M.",
year = "2013",
abstract = "4H-SiC VDMOS is a peculiar semiconductor structure with two considerably different recognized regions. One of them is a vertical drift region, whereas the other one appears as a horizontal channel with its left and right sections corresponding to source bias. In each of these regions current-voltage characterisic can become saturated regardless of the status of the other region, thus making possible several operation modes of the considered devices. The investigation of the onset of these saturations in their order of appearance is the goal of this paper.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Optoelectronics and Advanced Materials-Rapid Communications",
title = "4H-SiC VDMOS - drift-region saturation, channel saturation and their order of appearance",
pages = "333-329",
number = "5-6",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2417"
}

Abood, I., Lukić, P. M., Šašić, R., Alkoash, A. A.,& Ostojić, S. M.. (2013). 4H-SiC VDMOS - drift-region saturation, channel saturation and their order of appearance. in Optoelectronics and Advanced Materials-Rapid Communications
Natl Inst Optoelectronics, Bucharest-Magurele., 7(5-6), 329-333.
https://hdl.handle.net/21.15107/rcub_technorep_2417

Abood I, Lukić PM, Šašić R, Alkoash AA, Ostojić SM. 4H-SiC VDMOS - drift-region saturation, channel saturation and their order of appearance. in Optoelectronics and Advanced Materials-Rapid Communications. 2013;7(5-6):329-333.
https://hdl.handle.net/21.15107/rcub_technorep_2417 .

Abood, Imhammad, Lukić, Petar M., Šašić, Rajko, Alkoash, Abed Alkhem, Ostojić, Stanko M., "4H-SiC VDMOS - drift-region saturation, channel saturation and their order of appearance" in Optoelectronics and Advanced Materials-Rapid Communications, 7, no. 5-6 (2013):329-333,
https://hdl.handle.net/21.15107/rcub_technorep_2417 .

TY  - JOUR
AU  - Lukić, Petar M.
AU  - Šašić, Rajko
AU  - Lončar, Boris
AU  - Zunjić, A. G.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1945
AB  - This paper presents new results obtained by investigations of silicon carbide (SiC) based vertical Double Implanted Metal Oxide Semiconductor Field Effect Transistor (DIMOSFET). The results are described and presented by the analytical model of drift region voltage and its impact on SiC DIMOSFET current-voltage characteristics. The drift region is devided into sections. For each of them, voltage analytical model across the corresponding section is developed. Mobility dependence model on temperature and electric field is introduced. Finally, current-voltage characteristics are obtained, by using drain to surce voltage model which incorporate the mentioned partial voltages. Proposed model is based on the physics of the SiC DIMOSFET. Significant effects are taken into account, thus the model is accurate. At the same time exposed model is relatively simple. By using developed model simulations were performed. The obtained results are in very good agreement with already known and published ones..
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Optoelectronics and Advanced Materials-Rapid Communications
T1  - Analytical model of SiC DIMOSFET's drift region voltage impact on current-voltage characteristics
EP  - 554
IS  - 5-6
SP  - 551
VL  - 5
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1945
ER  - 

@article{
author = "Lukić, Petar M. and Šašić, Rajko and Lončar, Boris and Zunjić, A. G.",
year = "2011",
abstract = "This paper presents new results obtained by investigations of silicon carbide (SiC) based vertical Double Implanted Metal Oxide Semiconductor Field Effect Transistor (DIMOSFET). The results are described and presented by the analytical model of drift region voltage and its impact on SiC DIMOSFET current-voltage characteristics. The drift region is devided into sections. For each of them, voltage analytical model across the corresponding section is developed. Mobility dependence model on temperature and electric field is introduced. Finally, current-voltage characteristics are obtained, by using drain to surce voltage model which incorporate the mentioned partial voltages. Proposed model is based on the physics of the SiC DIMOSFET. Significant effects are taken into account, thus the model is accurate. At the same time exposed model is relatively simple. By using developed model simulations were performed. The obtained results are in very good agreement with already known and published ones..",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Optoelectronics and Advanced Materials-Rapid Communications",
title = "Analytical model of SiC DIMOSFET's drift region voltage impact on current-voltage characteristics",
pages = "554-551",
number = "5-6",
volume = "5",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1945"
}

Lukić, P. M., Šašić, R., Lončar, B.,& Zunjić, A. G.. (2011). Analytical model of SiC DIMOSFET's drift region voltage impact on current-voltage characteristics. in Optoelectronics and Advanced Materials-Rapid Communications
Natl Inst Optoelectronics, Bucharest-Magurele., 5(5-6), 551-554.
https://hdl.handle.net/21.15107/rcub_technorep_1945

Lukić PM, Šašić R, Lončar B, Zunjić AG. Analytical model of SiC DIMOSFET's drift region voltage impact on current-voltage characteristics. in Optoelectronics and Advanced Materials-Rapid Communications. 2011;5(5-6):551-554.
https://hdl.handle.net/21.15107/rcub_technorep_1945 .

Lukić, Petar M., Šašić, Rajko, Lončar, Boris, Zunjić, A. G., "Analytical model of SiC DIMOSFET's drift region voltage impact on current-voltage characteristics" in Optoelectronics and Advanced Materials-Rapid Communications, 5, no. 5-6 (2011):551-554,
https://hdl.handle.net/21.15107/rcub_technorep_1945 .