TY  - CONF
AU  - Rajić, Vladimir
AU  - Marković, Smilja
AU  - Popović, M.
AU  - Novaković, M.
AU  - Veselinović, Ljiljana
AU  - Stojković Simatović, Ivana
AU  - Škapin, Srečo Davor
AU  - Stojanović, S.
AU  - Rac, Vladislav
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11554
AB  - Zink oxide-based materials have a great potential to be applied in photo and electro catalysts, opto-electronic (indoor illumination, LED), etc. Attractiveness of ZnO is attributed to wide bandgap energy at room temperature (3.37 eV), high electron mobility and transfer efficiency (115-155 cm2·V-1·s-1), large exciton binding energy (60 meV), intrinsic stability, nontoxicity, environmental compatibility and also, simple and not expensive synthesis procedure. A lot of different approaches can be used to modify the bandgap (i.e. optical absorption) of ZnO materials: metal and nonmetal ion doping, hydrogenation, the incorporation of crystalline defects in the form of V and I, modification of particles morphology and surface topology, etc. In this study, eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped ZnO nanoparticles with 5, 10, 15 and 20 at.% of Fe (Zn1-xFeyO(1-x+1.5y)). The influence of different amount of Fe substituted Zn in ZnO on the crystal structure, morphological, textural, and optical properties as well as on functionality of ZnO particles was investigated. The crystal structure and phase purity of the Zn1-xFeyO(1-x+1.5y) particles were determined by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). Effects of the Fe3+ amount on particles morphology and texture properties were observed with field emission scanning electron microscopy (FE–SEM), transmission electron microscopy (TEM) and nitrogen adsorption–desorption isotherm, respectively. Optical properties were studied using UV-Vis diffuse reflectance and photoluminescence spectroscopy. Functionality of ZnO particles was studied due to their photocatalytic and electrochemical activities. Photocatalytic activity was examined via decolorization of methylene blue under direct sunlight irradiation. Electrochemical behavior of the ZnO samples as anode material was evaluated by linear sweep voltammetry in 0.5 M Na2SO4 electrolyte.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
T1  - Crystal structure, optical properties and photo/electrocatalytic activity of nanostructured Zn1-xFeyO(1-x+1.5y)
SP  - 34
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11554
ER  - 

@conference{
author = "Rajić, Vladimir and Marković, Smilja and Popović, M. and Novaković, M. and Veselinović, Ljiljana and Stojković Simatović, Ivana and Škapin, Srečo Davor and Stojanović, S. and Rac, Vladislav",
year = "2023",
abstract = "Zink oxide-based materials have a great potential to be applied in photo and electro catalysts, opto-electronic (indoor illumination, LED), etc. Attractiveness of ZnO is attributed to wide bandgap energy at room temperature (3.37 eV), high electron mobility and transfer efficiency (115-155 cm2·V-1·s-1), large exciton binding energy (60 meV), intrinsic stability, nontoxicity, environmental compatibility and also, simple and not expensive synthesis procedure. A lot of different approaches can be used to modify the bandgap (i.e. optical absorption) of ZnO materials: metal and nonmetal ion doping, hydrogenation, the incorporation of crystalline defects in the form of V and I, modification of particles morphology and surface topology, etc. In this study, eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped ZnO nanoparticles with 5, 10, 15 and 20 at.% of Fe (Zn1-xFeyO(1-x+1.5y)). The influence of different amount of Fe substituted Zn in ZnO on the crystal structure, morphological, textural, and optical properties as well as on functionality of ZnO particles was investigated. The crystal structure and phase purity of the Zn1-xFeyO(1-x+1.5y) particles were determined by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). Effects of the Fe3+ amount on particles morphology and texture properties were observed with field emission scanning electron microscopy (FE–SEM), transmission electron microscopy (TEM) and nitrogen adsorption–desorption isotherm, respectively. Optical properties were studied using UV-Vis diffuse reflectance and photoluminescence spectroscopy. Functionality of ZnO particles was studied due to their photocatalytic and electrochemical activities. Photocatalytic activity was examined via decolorization of methylene blue under direct sunlight irradiation. Electrochemical behavior of the ZnO samples as anode material was evaluated by linear sweep voltammetry in 0.5 M Na2SO4 electrolyte.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade",
title = "Crystal structure, optical properties and photo/electrocatalytic activity of nanostructured Zn1-xFeyO(1-x+1.5y)",
pages = "34",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11554"
}

Rajić, V., Marković, S., Popović, M., Novaković, M., Veselinović, L., Stojković Simatović, I., Škapin, S. D., Stojanović, S.,& Rac, V.. (2023). Crystal structure, optical properties and photo/electrocatalytic activity of nanostructured Zn1-xFeyO(1-x+1.5y). in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 34.
https://hdl.handle.net/21.15107/rcub_vinar_11554

Rajić V, Marković S, Popović M, Novaković M, Veselinović L, Stojković Simatović I, Škapin SD, Stojanović S, Rac V. Crystal structure, optical properties and photo/electrocatalytic activity of nanostructured Zn1-xFeyO(1-x+1.5y). in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade. 2023;:34.
https://hdl.handle.net/21.15107/rcub_vinar_11554 .

Rajić, Vladimir, Marković, Smilja, Popović, M., Novaković, M., Veselinović, Ljiljana, Stojković Simatović, Ivana, Škapin, Srečo Davor, Stojanović, S., Rac, Vladislav, "Crystal structure, optical properties and photo/electrocatalytic activity of nanostructured Zn1-xFeyO(1-x+1.5y)" in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade (2023):34,
https://hdl.handle.net/21.15107/rcub_vinar_11554 .

TY  - CONF
AU  - Popović, M.
AU  - Novaković, M.
AU  - Peruško, Davor
AU  - Radović, Ivan
AU  - Milinović, Velimir
AU  - Mitrić, M.
AU  - Milosavljević, M.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12672
AB  - Titanium-nitrude layers are interesting as hard coathings, wear and corrosion protection materials. In general, their functional properties depend on their microstructure, i. e. the mean grain size, grain boundaries, crystalline defects, preferred orientation, surface and interface morphology, etc. Here we present a study of the micro-structural changes induced in TiN layers by irradiation with argon ions. Titanium nitride thin films were deposited by reactive ion sputtering on (100) Si to a thickness of ~250nm. After deposition the films were implanted with 120keV argon ions to the fluences of 1x1015 and 1x1016ions/cm2. Structural characterisation of the samples was performed by cross-sectional transmission electron microscopy, x-ray diffraction and Rutherford backscattering spectrometry. It was found that ion irradiation induces local micro-structural changes, formation of nanoparticles and defects. We also measured their electrical resistivity with a four point probe. The induced crystalline defects yield an increase of electrical resistivity after ion irradiation.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - YUCOMAT 2007 : 9th Annual Conference YUCOMAT 2007 : Programme and the book of abstracts
T1  - A study of microstructural changes in TiN thin films induced by ion implantation
SP  - 69
EP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12672
ER  - 

@conference{
author = "Popović, M. and Novaković, M. and Peruško, Davor and Radović, Ivan and Milinović, Velimir and Mitrić, M. and Milosavljević, M.",
year = "2007",
abstract = "Titanium-nitrude layers are interesting as hard coathings, wear and corrosion protection materials. In general, their functional properties depend on their microstructure, i. e. the mean grain size, grain boundaries, crystalline defects, preferred orientation, surface and interface morphology, etc. Here we present a study of the micro-structural changes induced in TiN layers by irradiation with argon ions. Titanium nitride thin films were deposited by reactive ion sputtering on (100) Si to a thickness of ~250nm. After deposition the films were implanted with 120keV argon ions to the fluences of 1x1015 and 1x1016ions/cm2. Structural characterisation of the samples was performed by cross-sectional transmission electron microscopy, x-ray diffraction and Rutherford backscattering spectrometry. It was found that ion irradiation induces local micro-structural changes, formation of nanoparticles and defects. We also measured their electrical resistivity with a four point probe. The induced crystalline defects yield an increase of electrical resistivity after ion irradiation.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "YUCOMAT 2007 : 9th Annual Conference YUCOMAT 2007 : Programme and the book of abstracts",
title = "A study of microstructural changes in TiN thin films induced by ion implantation",
pages = "69-69",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12672"
}

Popović, M., Novaković, M., Peruško, D., Radović, I., Milinović, V., Mitrić, M.,& Milosavljević, M.. (2007). A study of microstructural changes in TiN thin films induced by ion implantation. in YUCOMAT 2007 : 9th Annual Conference YUCOMAT 2007 : Programme and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 69-69.
https://hdl.handle.net/21.15107/rcub_vinar_12672

Popović M, Novaković M, Peruško D, Radović I, Milinović V, Mitrić M, Milosavljević M. A study of microstructural changes in TiN thin films induced by ion implantation. in YUCOMAT 2007 : 9th Annual Conference YUCOMAT 2007 : Programme and the book of abstracts. 2007;:69-69.
https://hdl.handle.net/21.15107/rcub_vinar_12672 .

Popović, M., Novaković, M., Peruško, Davor, Radović, Ivan, Milinović, Velimir, Mitrić, M., Milosavljević, M., "A study of microstructural changes in TiN thin films induced by ion implantation" in YUCOMAT 2007 : 9th Annual Conference YUCOMAT 2007 : Programme and the book of abstracts (2007):69-69,
https://hdl.handle.net/21.15107/rcub_vinar_12672 .

TY  - CONF
AU  - Popović, M.
AU  - Novaković, M.
AU  - Peruško, Davor
AU  - Radović, Ivan
AU  - Milinović, Velimir
AU  - Mitrić, M.
AU  - Bibić, Nataša
AU  - Milosavljević, M.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12671
AB  - study of the microstructural changes in TiN films induced by implantation of nitrogen or argon ions is presented. Titanium nitride thin films were deposited by reactive ion sputtering from a 99.9% Ti target, with an argon ion beam in a nitrogen ambient. The base pressure in the chamber was ~ 2x10-6 mbar, N2 partial pressure 3x10-4 mbar, and Ar partial pressure 1x10-3 mbar. The films were deposited on (100) Si substrates, to a thickness of 200 nm, at a rate of ~ 7 nm/min, at ambient temperature. After deposition the films were implanted with 80 keV nitrogen ions or 120 keV argon ions, to the fluences from 1-15x1015 ions/cm2. The ion beam was uniformly scanned over an area of 2x2 cm2 on the target, and the beam current was held at ~ 1 A/cm2 in order to avoid heating of the samples during ion irradiation. The implantation energy was chosen to give the projected ion range within the deposited layers, in order to minimize the influence of the substrate on the induced structural changes. Structural analysis of the samples was performed by cross-sectional transmission electron microscopy, xray diffraction, and Rutherford backscattering spectrometry. While ion implantation is mainly used to improve adhesion of these layers to the substrate, our primary interest was to study microstructural changes induced within the layers. We have correlated these changes with the ion implantation parameters, i.e. the ion mass, energy and fluence.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - YUCOMAT 2006 : 8th Annual Conference YUCOMAT 2006 : Programme and the book of abstracts
T1  - Microstructural changes in TiN thin films induced by ion implantation
SP  - 100
EP  - 100
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12671
ER  - 

@conference{
author = "Popović, M. and Novaković, M. and Peruško, Davor and Radović, Ivan and Milinović, Velimir and Mitrić, M. and Bibić, Nataša and Milosavljević, M.",
year = "2006",
abstract = "study of the microstructural changes in TiN films induced by implantation of nitrogen or argon ions is presented. Titanium nitride thin films were deposited by reactive ion sputtering from a 99.9% Ti target, with an argon ion beam in a nitrogen ambient. The base pressure in the chamber was ~ 2x10-6 mbar, N2 partial pressure 3x10-4 mbar, and Ar partial pressure 1x10-3 mbar. The films were deposited on (100) Si substrates, to a thickness of 200 nm, at a rate of ~ 7 nm/min, at ambient temperature. After deposition the films were implanted with 80 keV nitrogen ions or 120 keV argon ions, to the fluences from 1-15x1015 ions/cm2. The ion beam was uniformly scanned over an area of 2x2 cm2 on the target, and the beam current was held at ~ 1 A/cm2 in order to avoid heating of the samples during ion irradiation. The implantation energy was chosen to give the projected ion range within the deposited layers, in order to minimize the influence of the substrate on the induced structural changes. Structural analysis of the samples was performed by cross-sectional transmission electron microscopy, xray diffraction, and Rutherford backscattering spectrometry. While ion implantation is mainly used to improve adhesion of these layers to the substrate, our primary interest was to study microstructural changes induced within the layers. We have correlated these changes with the ion implantation parameters, i.e. the ion mass, energy and fluence.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "YUCOMAT 2006 : 8th Annual Conference YUCOMAT 2006 : Programme and the book of abstracts",
title = "Microstructural changes in TiN thin films induced by ion implantation",
pages = "100-100",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12671"
}

Popović, M., Novaković, M., Peruško, D., Radović, I., Milinović, V., Mitrić, M., Bibić, N.,& Milosavljević, M.. (2006). Microstructural changes in TiN thin films induced by ion implantation. in YUCOMAT 2006 : 8th Annual Conference YUCOMAT 2006 : Programme and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 100-100.
https://hdl.handle.net/21.15107/rcub_vinar_12671

Popović M, Novaković M, Peruško D, Radović I, Milinović V, Mitrić M, Bibić N, Milosavljević M. Microstructural changes in TiN thin films induced by ion implantation. in YUCOMAT 2006 : 8th Annual Conference YUCOMAT 2006 : Programme and the book of abstracts. 2006;:100-100.
https://hdl.handle.net/21.15107/rcub_vinar_12671 .

Popović, M., Novaković, M., Peruško, Davor, Radović, Ivan, Milinović, Velimir, Mitrić, M., Bibić, Nataša, Milosavljević, M., "Microstructural changes in TiN thin films induced by ion implantation" in YUCOMAT 2006 : 8th Annual Conference YUCOMAT 2006 : Programme and the book of abstracts (2006):100-100,
https://hdl.handle.net/21.15107/rcub_vinar_12671 .

TY  - CONF
AU  - Peruško, Davor
AU  - Mitrić, M.
AU  - Bibić, Nataša
AU  - Petrović, S.
AU  - Popović, M.
AU  - Novaković, M.
AU  - Radović, Ivan
AU  - Milosavljević, M.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12666
AB  - Nitrogen ion implantations were performed on AISI 1045 steel substrates. The ion energy was 40 keV and the ion doses were from 5x1016 – 5x1017 ions cm-2. On such substrates we have deposited 1.3 μm thick TiN coatings. Structural characterizations were performed by grazing incidence X-ray diffraction analysis (GXRD), normal X-ray diffraction analysis (XRD), and scanning electron microscopy (SEM). Microhardness was measured by Vicker`s method. The obtained results indicate that the formation of iron nitrides occurred in the near surface region of the substrates. This effect is more pronounced for higher implantation doses. Structure of the deposited TiN coatings shows a dependence on the implanted doses. Ion implantation and deposition of hard TiN coatings induce an increase of microhardness of this low performance steel for more than eight times.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - YUCOMAT 2006 : 8th Annual Conference YUCOMAT 2006 : Programme and the book of abstracts
T1  - GXRD analysis of TiN coatings deposited on ion implanted stainless steel
SP  - 67
EP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12666
ER  - 

@conference{
author = "Peruško, Davor and Mitrić, M. and Bibić, Nataša and Petrović, S. and Popović, M. and Novaković, M. and Radović, Ivan and Milosavljević, M.",
year = "2006",
abstract = "Nitrogen ion implantations were performed on AISI 1045 steel substrates. The ion energy was 40 keV and the ion doses were from 5x1016 – 5x1017 ions cm-2. On such substrates we have deposited 1.3 μm thick TiN coatings. Structural characterizations were performed by grazing incidence X-ray diffraction analysis (GXRD), normal X-ray diffraction analysis (XRD), and scanning electron microscopy (SEM). Microhardness was measured by Vicker`s method. The obtained results indicate that the formation of iron nitrides occurred in the near surface region of the substrates. This effect is more pronounced for higher implantation doses. Structure of the deposited TiN coatings shows a dependence on the implanted doses. Ion implantation and deposition of hard TiN coatings induce an increase of microhardness of this low performance steel for more than eight times.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "YUCOMAT 2006 : 8th Annual Conference YUCOMAT 2006 : Programme and the book of abstracts",
title = "GXRD analysis of TiN coatings deposited on ion implanted stainless steel",
pages = "67-67",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12666"
}

Peruško, D., Mitrić, M., Bibić, N., Petrović, S., Popović, M., Novaković, M., Radović, I.,& Milosavljević, M.. (2006). GXRD analysis of TiN coatings deposited on ion implanted stainless steel. in YUCOMAT 2006 : 8th Annual Conference YUCOMAT 2006 : Programme and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 67-67.
https://hdl.handle.net/21.15107/rcub_vinar_12666

Peruško D, Mitrić M, Bibić N, Petrović S, Popović M, Novaković M, Radović I, Milosavljević M. GXRD analysis of TiN coatings deposited on ion implanted stainless steel. in YUCOMAT 2006 : 8th Annual Conference YUCOMAT 2006 : Programme and the book of abstracts. 2006;:67-67.
https://hdl.handle.net/21.15107/rcub_vinar_12666 .

Peruško, Davor, Mitrić, M., Bibić, Nataša, Petrović, S., Popović, M., Novaković, M., Radović, Ivan, Milosavljević, M., "GXRD analysis of TiN coatings deposited on ion implanted stainless steel" in YUCOMAT 2006 : 8th Annual Conference YUCOMAT 2006 : Programme and the book of abstracts (2006):67-67,
https://hdl.handle.net/21.15107/rcub_vinar_12666 .