TY  - JOUR
AU  - Wang, Hulin
AU  - Li, Weijun
AU  - Gloginjić, Marko
AU  - Petrović, Srđan
AU  - Krupska, Tetyana V.
AU  - Turov, Vladimir V.
AU  - Zhao, Jialong
AU  - Yang, Weiyou
AU  - Du, Zhentao
AU  - Chen, Shanliang
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12999
AB  - Emerging photoelectrochemical (PEC) photodetectors (PDs) have notable advantages over conventional PDs and have attracted extensive attention. However, harsh liquid environments, such as those with high corrosivity and attenuation, substantially restrict their widespread application. Moreover, most PEC PDs are constructed by assembling numerous nanostructures on current collector substrates, which inevitably contain abundant interfaces and defects, thus greatly weakening the properties of PDs. To address these challenges, a high-performance pH-universal PEC ultraviolet (UV) PD based on a whole single-crystal integrated self-supporting 4H-SiC nanopore array photoelectrode is constructed, which is fabricated using a two-step anodic oxidation approach. The PD exhibits excellent photodetection behavior, with high responsivity (218.77 mA W−1), detectivity (6.64 × 1013 Jones), external quantum efficiency (72.47%), and rapid rise/decay times (17/48 ms) under 375 nm light illumination with a low intensity of 0.15 mW cm−2 and a bias voltage of 0.6 V, which is fall in the state-of-the-art of the wide-bandgap semiconductor-based PDs reported thus far. Furthermore, the SiC PEC PD exhibits excellent photoresponse and long-term operational stability in pH-universal liquid environments. The improved photodetection performance of the SiC PEC PD is primarily attributed to the synergistic effect of the nanopore array structure, integrated self-supporting configuration, and single-crystal structure of the whole photoelectrode.
T2  - Small
T1  - High‐Sensitivity Photoelectrochemical Ultraviolet Photodetector with Stable pH‐Universal Adaptability Based on Whole Single‐Crystal Integrated Self‐Supporting 4                    H                    ‐SiC Nanoarrays
SP  - 2400045
DO  - 10.1002/smll.202400045
ER  - 

@article{
author = "Wang, Hulin and Li, Weijun and Gloginjić, Marko and Petrović, Srđan and Krupska, Tetyana V. and Turov, Vladimir V. and Zhao, Jialong and Yang, Weiyou and Du, Zhentao and Chen, Shanliang",
year = "2024",
abstract = "Emerging photoelectrochemical (PEC) photodetectors (PDs) have notable advantages over conventional PDs and have attracted extensive attention. However, harsh liquid environments, such as those with high corrosivity and attenuation, substantially restrict their widespread application. Moreover, most PEC PDs are constructed by assembling numerous nanostructures on current collector substrates, which inevitably contain abundant interfaces and defects, thus greatly weakening the properties of PDs. To address these challenges, a high-performance pH-universal PEC ultraviolet (UV) PD based on a whole single-crystal integrated self-supporting 4H-SiC nanopore array photoelectrode is constructed, which is fabricated using a two-step anodic oxidation approach. The PD exhibits excellent photodetection behavior, with high responsivity (218.77 mA W−1), detectivity (6.64 × 1013 Jones), external quantum efficiency (72.47%), and rapid rise/decay times (17/48 ms) under 375 nm light illumination with a low intensity of 0.15 mW cm−2 and a bias voltage of 0.6 V, which is fall in the state-of-the-art of the wide-bandgap semiconductor-based PDs reported thus far. Furthermore, the SiC PEC PD exhibits excellent photoresponse and long-term operational stability in pH-universal liquid environments. The improved photodetection performance of the SiC PEC PD is primarily attributed to the synergistic effect of the nanopore array structure, integrated self-supporting configuration, and single-crystal structure of the whole photoelectrode.",
journal = "Small",
title = "High‐Sensitivity Photoelectrochemical Ultraviolet Photodetector with Stable pH‐Universal Adaptability Based on Whole Single‐Crystal Integrated Self‐Supporting 4                    H                    ‐SiC Nanoarrays",
pages = "2400045",
doi = "10.1002/smll.202400045"
}

Wang, H., Li, W., Gloginjić, M., Petrović, S., Krupska, T. V., Turov, V. V., Zhao, J., Yang, W., Du, Z.,& Chen, S.. (2024). High‐Sensitivity Photoelectrochemical Ultraviolet Photodetector with Stable pH‐Universal Adaptability Based on Whole Single‐Crystal Integrated Self‐Supporting 4                    H                    ‐SiC Nanoarrays. in Small, 2400045.
https://doi.org/10.1002/smll.202400045

Wang H, Li W, Gloginjić M, Petrović S, Krupska TV, Turov VV, Zhao J, Yang W, Du Z, Chen S. High‐Sensitivity Photoelectrochemical Ultraviolet Photodetector with Stable pH‐Universal Adaptability Based on Whole Single‐Crystal Integrated Self‐Supporting 4                    H                    ‐SiC Nanoarrays. in Small. 2024;:2400045.
doi:10.1002/smll.202400045 .

Wang, Hulin, Li, Weijun, Gloginjić, Marko, Petrović, Srđan, Krupska, Tetyana V., Turov, Vladimir V., Zhao, Jialong, Yang, Weiyou, Du, Zhentao, Chen, Shanliang, "High‐Sensitivity Photoelectrochemical Ultraviolet Photodetector with Stable pH‐Universal Adaptability Based on Whole Single‐Crystal Integrated Self‐Supporting 4                    H                    ‐SiC Nanoarrays" in Small (2024):2400045,
https://doi.org/10.1002/smll.202400045 . .

TY  - CONF
AU  - Erich, Marko
AU  - Gloginjić, Marko
AU  - Mravik, Željko
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Nečas, Vladimír
AU  - Filová, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondrej
AU  - Petrović, Srđan M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11068
AB  - 6H-SiC samples have been implanted by 4 MeV C and Si ions in the (0001) channeling direction to the sets of multiple implantation fluences. These samples were analyzed via Elastic Backscattering Spectroscopy in the channeling mode (EBS/C) using 1.725 MeV proton beam, from which SiC amorphization depth profiles and averaged integral 6H-SiC amorphization have been obtained. The averaged integral 6H-SiC crystal amorphization vs implanted fluence dependence has been determined for both types of implanted ions. From these dependences, the 6H-SiC integral crystal amorphization vs. implanted fluence/type of implanted atom assessment model have been proposed.
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence
VL  - 2778
IS  - 1
SP  - 060002
DO  - 10.1063/5.0136670
ER  - 

@conference{
author = "Erich, Marko and Gloginjić, Marko and Mravik, Željko and Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Nečas, Vladimír and Filová, Vendula and Katovský, Karel and Štastný, Ondrej and Petrović, Srđan M.",
year = "2023",
abstract = "6H-SiC samples have been implanted by 4 MeV C and Si ions in the (0001) channeling direction to the sets of multiple implantation fluences. These samples were analyzed via Elastic Backscattering Spectroscopy in the channeling mode (EBS/C) using 1.725 MeV proton beam, from which SiC amorphization depth profiles and averaged integral 6H-SiC amorphization have been obtained. The averaged integral 6H-SiC crystal amorphization vs implanted fluence dependence has been determined for both types of implanted ions. From these dependences, the 6H-SiC integral crystal amorphization vs. implanted fluence/type of implanted atom assessment model have been proposed.",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence",
volume = "2778",
number = "1",
pages = "060002",
doi = "10.1063/5.0136670"
}

Erich, M., Gloginjić, M., Mravik, Ž., Vrban, B., Čerba, Š., Lüley, J., Nečas, V., Filová, V., Katovský, K., Štastný, O.,& Petrović, S. M.. (2023). Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 060002.
https://doi.org/10.1063/5.0136670

Erich M, Gloginjić M, Mravik Ž, Vrban B, Čerba Š, Lüley J, Nečas V, Filová V, Katovský K, Štastný O, Petrović SM. Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):060002.
doi:10.1063/5.0136670 .

Erich, Marko, Gloginjić, Marko, Mravik, Željko, Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Nečas, Vladimír, Filová, Vendula, Katovský, Karel, Štastný, Ondrej, Petrović, Srđan M., "Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):060002,
https://doi.org/10.1063/5.0136670 . .

TY  - CONF
AU  - Čerba, Štefan
AU  - Vrban, Branislav
AU  - Lüley, Jakub
AU  - Filová, Vendula
AU  - Nečas, Vladimír
AU  - Štastný, Ondrej
AU  - Katovský, Karel
AU  - Mravik, Željko
AU  - Erich, Marko
AU  - Petrović, Srđan M.
AU  - Gloginjić, Marko
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11069
AB  - The Mini Labyrinth experiment is a simple neutron and gamma shielding experiment developed at Slovak University of Technology (STU), inspired by the ALARM-CF-AIR-LAB-001 ICSBEP benchmark. Compared to the original Labyrinth, which was made from concrete blocks and had dimension of several meters, the STU Mini Labyrinth is approximately ten times smaller and consists of NEUTRONSTOP shielding blocks. So far, several versions and modifications of the Mini Labyrinth have been investigated, currently the V2-25-L version is used for code evaluation. This version uses a PuBe neutron source loaded in the entrance of the Mini Labyrinth, a plastic tank filled with light water moderator and the NuDET plastic scintillation neutron detector, which can be placed around the experimental workplace. This detector has a significant role in the experiment since it is a calibration apparatus and provides real time data on the rates of ambient dose equivalents of neutron radiation. On the other hand, as it is a certified commercial product, the response function of this detector is unknow, which makes a significant challenge of verifying the measured data with computer codes. This paper presents a result of a series of measurements with the NuDET detector performed at STU and discusses the options, how to verify the experimental results by the SCALE6 system in the most effective way.
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment
VL  - 2778
IS  - 1
SP  - 050002
DO  - 10.1063/5.0135854
ER  - 

@conference{
author = "Čerba, Štefan and Vrban, Branislav and Lüley, Jakub and Filová, Vendula and Nečas, Vladimír and Štastný, Ondrej and Katovský, Karel and Mravik, Željko and Erich, Marko and Petrović, Srđan M. and Gloginjić, Marko",
year = "2023",
abstract = "The Mini Labyrinth experiment is a simple neutron and gamma shielding experiment developed at Slovak University of Technology (STU), inspired by the ALARM-CF-AIR-LAB-001 ICSBEP benchmark. Compared to the original Labyrinth, which was made from concrete blocks and had dimension of several meters, the STU Mini Labyrinth is approximately ten times smaller and consists of NEUTRONSTOP shielding blocks. So far, several versions and modifications of the Mini Labyrinth have been investigated, currently the V2-25-L version is used for code evaluation. This version uses a PuBe neutron source loaded in the entrance of the Mini Labyrinth, a plastic tank filled with light water moderator and the NuDET plastic scintillation neutron detector, which can be placed around the experimental workplace. This detector has a significant role in the experiment since it is a calibration apparatus and provides real time data on the rates of ambient dose equivalents of neutron radiation. On the other hand, as it is a certified commercial product, the response function of this detector is unknow, which makes a significant challenge of verifying the measured data with computer codes. This paper presents a result of a series of measurements with the NuDET detector performed at STU and discusses the options, how to verify the experimental results by the SCALE6 system in the most effective way.",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment",
volume = "2778",
number = "1",
pages = "050002",
doi = "10.1063/5.0135854"
}

Čerba, Š., Vrban, B., Lüley, J., Filová, V., Nečas, V., Štastný, O., Katovský, K., Mravik, Ž., Erich, M., Petrović, S. M.,& Gloginjić, M.. (2023). Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 050002.
https://doi.org/10.1063/5.0135854

Čerba Š, Vrban B, Lüley J, Filová V, Nečas V, Štastný O, Katovský K, Mravik Ž, Erich M, Petrović SM, Gloginjić M. Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):050002.
doi:10.1063/5.0135854 .

Čerba, Štefan, Vrban, Branislav, Lüley, Jakub, Filová, Vendula, Nečas, Vladimír, Štastný, Ondrej, Katovský, Karel, Mravik, Željko, Erich, Marko, Petrović, Srđan M., Gloginjić, Marko, "Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):050002,
https://doi.org/10.1063/5.0135854 . .

TY  - CONF
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Skuratov, Vladimir A.
AU  - Kirilkin, Nikita S.
AU  - Kokkoris, Mike
AU  - Fazinić, Stjepko
AU  - Karlušić, Marko
AU  - Petrović, Srđan M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11071
AB  - Magnesium fluoride (MgF2) single crystal has been widely used as a material for application in optics due to its excellent properties like birefringence, wide range of transparency and low refractive index. As such, MgF2 has been proposed for planar waveguide structures. Ion implantation method was frequently used for planar waveguide production due to its ability to modulate optical properties by introduction of impurities and defects in crystal lattice. In all optics fabrication processes, there are demands for a precise control of optical characteristics modulation and hence the need for precise distribution of implanted impurities and induced damage. In this study, 4 MeV C3+ ions with the fluence of 5×1015 ions/cm2 were implanted in (001) axial direction of MgF2 single crystal. In order to determine the damage depth distribution in the crystal sample, photoluminescence (PL) spectroscopy was proposed as a method of evaluation. PL spectroscopy was used as a convenient method for damage investigation of transparent and semi-transparent samples. The cross-section of the implanted zone was mapped with the step of 0.34 µm and the variations in the spectra were investigated. It was shown that intensity evolution of two prominent wide bands with the intensity maximums at about 590 nm and 733 nm can be used for damage depth distribution estimation. Comparing the relative changes of derivatives of the band’s intensities, data related to the damage depth distribution were obtained. Obtained distribution was compared with the SRIM calculation of displacement damage. Considering the difference in implantation direction, good agreement with SRIM results was obtained. As a consequence of ion channeling, it was shown that damage distribution is extended deeper (for about 20%).
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Ion channeling implantation induced MgF2 crystal damage through the “eye” of photoluminescence spectroscopy
VL  - 2778
IS  - 1
SP  - 040007
DO  - 10.1063/5.0135868
ER  - 

@conference{
author = "Gloginjić, Marko and Erich, Marko and Skuratov, Vladimir A. and Kirilkin, Nikita S. and Kokkoris, Mike and Fazinić, Stjepko and Karlušić, Marko and Petrović, Srđan M.",
year = "2023",
abstract = "Magnesium fluoride (MgF2) single crystal has been widely used as a material for application in optics due to its excellent properties like birefringence, wide range of transparency and low refractive index. As such, MgF2 has been proposed for planar waveguide structures. Ion implantation method was frequently used for planar waveguide production due to its ability to modulate optical properties by introduction of impurities and defects in crystal lattice. In all optics fabrication processes, there are demands for a precise control of optical characteristics modulation and hence the need for precise distribution of implanted impurities and induced damage. In this study, 4 MeV C3+ ions with the fluence of 5×1015 ions/cm2 were implanted in (001) axial direction of MgF2 single crystal. In order to determine the damage depth distribution in the crystal sample, photoluminescence (PL) spectroscopy was proposed as a method of evaluation. PL spectroscopy was used as a convenient method for damage investigation of transparent and semi-transparent samples. The cross-section of the implanted zone was mapped with the step of 0.34 µm and the variations in the spectra were investigated. It was shown that intensity evolution of two prominent wide bands with the intensity maximums at about 590 nm and 733 nm can be used for damage depth distribution estimation. Comparing the relative changes of derivatives of the band’s intensities, data related to the damage depth distribution were obtained. Obtained distribution was compared with the SRIM calculation of displacement damage. Considering the difference in implantation direction, good agreement with SRIM results was obtained. As a consequence of ion channeling, it was shown that damage distribution is extended deeper (for about 20%).",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Ion channeling implantation induced MgF2 crystal damage through the “eye” of photoluminescence spectroscopy",
volume = "2778",
number = "1",
pages = "040007",
doi = "10.1063/5.0135868"
}

Gloginjić, M., Erich, M., Skuratov, V. A., Kirilkin, N. S., Kokkoris, M., Fazinić, S., Karlušić, M.,& Petrović, S. M.. (2023). Ion channeling implantation induced MgF2 crystal damage through the “eye” of photoluminescence spectroscopy. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 040007.
https://doi.org/10.1063/5.0135868

Gloginjić M, Erich M, Skuratov VA, Kirilkin NS, Kokkoris M, Fazinić S, Karlušić M, Petrović SM. Ion channeling implantation induced MgF2 crystal damage through the “eye” of photoluminescence spectroscopy. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):040007.
doi:10.1063/5.0135868 .

Gloginjić, Marko, Erich, Marko, Skuratov, Vladimir A., Kirilkin, Nikita S., Kokkoris, Mike, Fazinić, Stjepko, Karlušić, Marko, Petrović, Srđan M., "Ion channeling implantation induced MgF2 crystal damage through the “eye” of photoluminescence spectroscopy" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):040007,
https://doi.org/10.1063/5.0135868 . .

TY  - CONF
AU  - Burian, Jiri
AU  - Čerba, Štefan
AU  - Erich, Marko
AU  - Filova, Vendula
AU  - Gloginjić, Marko
AU  - Katovsky, Karel
AU  - Kral, Dušan
AU  - Luley, Jakub
AU  - Mravik, Željko
AU  - Petrović, Srđan M.
AU  - Št'Astný, Ondřej
AU  - Vrban, Branislav
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11072
AB  - To extend the research possibilities of the nuclear research group at Brno University of Technology, a gamma radiation shielding measurement benchmark assembly was designed and built. Experimental device will be used for fine attenuation coefficient and build-up factors measurement and for easy validation of theoretical simulation and calculation of shielding properties of selected materials. Many different radioactive emitters can be used in the assembly, as well as many different detectors and materials, which might be tested, and results compared to understand well measurement results. A theoretical model was also created for the benchmark assembly and simulated in MCNP. Initial results show identical trends of values obtained by simulation and practical experiment.
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up
VL  - 2778
IS  - 1
SP  - 050001
DO  - 10.1063/5.0136138
ER  - 

@conference{
author = "Burian, Jiri and Čerba, Štefan and Erich, Marko and Filova, Vendula and Gloginjić, Marko and Katovsky, Karel and Kral, Dušan and Luley, Jakub and Mravik, Željko and Petrović, Srđan M. and Št'Astný, Ondřej and Vrban, Branislav",
year = "2023",
abstract = "To extend the research possibilities of the nuclear research group at Brno University of Technology, a gamma radiation shielding measurement benchmark assembly was designed and built. Experimental device will be used for fine attenuation coefficient and build-up factors measurement and for easy validation of theoretical simulation and calculation of shielding properties of selected materials. Many different radioactive emitters can be used in the assembly, as well as many different detectors and materials, which might be tested, and results compared to understand well measurement results. A theoretical model was also created for the benchmark assembly and simulated in MCNP. Initial results show identical trends of values obtained by simulation and practical experiment.",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up",
volume = "2778",
number = "1",
pages = "050001",
doi = "10.1063/5.0136138"
}

Burian, J., Čerba, Š., Erich, M., Filova, V., Gloginjić, M., Katovsky, K., Kral, D., Luley, J., Mravik, Ž., Petrović, S. M., Št'Astný, O.,& Vrban, B.. (2023). Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 050001.
https://doi.org/10.1063/5.0136138

Burian J, Čerba Š, Erich M, Filova V, Gloginjić M, Katovsky K, Kral D, Luley J, Mravik Ž, Petrović SM, Št'Astný O, Vrban B. Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):050001.
doi:10.1063/5.0136138 .

Burian, Jiri, Čerba, Štefan, Erich, Marko, Filova, Vendula, Gloginjić, Marko, Katovsky, Karel, Kral, Dušan, Luley, Jakub, Mravik, Željko, Petrović, Srđan M., Št'Astný, Ondřej, Vrban, Branislav, "Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):050001,
https://doi.org/10.1063/5.0136138 . .

TY  - JOUR
AU  - Jovanović, Zoran
AU  - Gloginjić, Marko
AU  - Mravik, Željko
AU  - Olejniczak, Andrzej
AU  - Bajuk-Bogdanović, Danica V.
AU  - Jovanović, Sonja
AU  - Pašti, Igor A.
AU  - Skuratov, Vladimir A.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10345
AB  - Interest in graphene oxide (GO) due to its controllable and adjustable properties has been increasing, especially in the field of electronic and electrochemical charge storage devices. Hence, the modification of surface chemistry and structure of GO can be outlined as crucial for achieving the preferable properties. In this study, we have investigated the influence of 15 keV proton-beam irradiation on GO structure and surface chemistry. The results obtained by Raman spectroscopy, Fourier-transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) were complemented with theoretical ones, obtained by using density functional theory (DFT), semi-empirical (SE) calculations and inelastic thermal spike (iTS) model. The FTIR and XPS results showed that proton irradiation partially reduces the GO with the preferential removal of the alkoxy and epoxy groups. Also, we identified a clear linear relation between the decresase of oxygen content and the decrease of ID/IG ratio i.e. increasing disorder of GO structure. The SE and DFT calculations highlighted a reduction of GO as a single- or multi-step process depending on the type of basal-plane or edge oxygen group. Dynamic SE calculations revealed that for kinetic energy of hydrogen below 1.5 eV the reduction is chemically driven, while at energies higher than 20 eV, the reduction of GO is a result of physical processes. iTS results showed that increase of temperature might contribute to reduction of GO via desorption of epoxy and alcoxy groups, as the least thermally stable groups (T ∼200 °C). The results of this work emphasize the capabilities ion beam irradiation for gradual modification of surface chemistry and structural properties of GO by providing more information about the mechanisms of hydrogen interaction with individual groups, interplay between defect creation, oxygen content and accompaning effects of ion energy loss processes.
T2  - Radiation Physics and Chemistry
T1  - Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study
VL  - 199
SP  - 110355
DO  - 10.1016/j.radphyschem.2022.110355
ER  - 

@article{
author = "Jovanović, Zoran and Gloginjić, Marko and Mravik, Željko and Olejniczak, Andrzej and Bajuk-Bogdanović, Danica V. and Jovanović, Sonja and Pašti, Igor A. and Skuratov, Vladimir A.",
year = "2022",
abstract = "Interest in graphene oxide (GO) due to its controllable and adjustable properties has been increasing, especially in the field of electronic and electrochemical charge storage devices. Hence, the modification of surface chemistry and structure of GO can be outlined as crucial for achieving the preferable properties. In this study, we have investigated the influence of 15 keV proton-beam irradiation on GO structure and surface chemistry. The results obtained by Raman spectroscopy, Fourier-transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) were complemented with theoretical ones, obtained by using density functional theory (DFT), semi-empirical (SE) calculations and inelastic thermal spike (iTS) model. The FTIR and XPS results showed that proton irradiation partially reduces the GO with the preferential removal of the alkoxy and epoxy groups. Also, we identified a clear linear relation between the decresase of oxygen content and the decrease of ID/IG ratio i.e. increasing disorder of GO structure. The SE and DFT calculations highlighted a reduction of GO as a single- or multi-step process depending on the type of basal-plane or edge oxygen group. Dynamic SE calculations revealed that for kinetic energy of hydrogen below 1.5 eV the reduction is chemically driven, while at energies higher than 20 eV, the reduction of GO is a result of physical processes. iTS results showed that increase of temperature might contribute to reduction of GO via desorption of epoxy and alcoxy groups, as the least thermally stable groups (T ∼200 °C). The results of this work emphasize the capabilities ion beam irradiation for gradual modification of surface chemistry and structural properties of GO by providing more information about the mechanisms of hydrogen interaction with individual groups, interplay between defect creation, oxygen content and accompaning effects of ion energy loss processes.",
journal = "Radiation Physics and Chemistry",
title = "Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study",
volume = "199",
pages = "110355",
doi = "10.1016/j.radphyschem.2022.110355"
}

Jovanović, Z., Gloginjić, M., Mravik, Ž., Olejniczak, A., Bajuk-Bogdanović, D. V., Jovanović, S., Pašti, I. A.,& Skuratov, V. A.. (2022). Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study. in Radiation Physics and Chemistry, 199, 110355.
https://doi.org/10.1016/j.radphyschem.2022.110355

Jovanović Z, Gloginjić M, Mravik Ž, Olejniczak A, Bajuk-Bogdanović DV, Jovanović S, Pašti IA, Skuratov VA. Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study. in Radiation Physics and Chemistry. 2022;199:110355.
doi:10.1016/j.radphyschem.2022.110355 .

Jovanović, Zoran, Gloginjić, Marko, Mravik, Željko, Olejniczak, Andrzej, Bajuk-Bogdanović, Danica V., Jovanović, Sonja, Pašti, Igor A., Skuratov, Vladimir A., "Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study" in Radiation Physics and Chemistry, 199 (2022):110355,
https://doi.org/10.1016/j.radphyschem.2022.110355 . .

TY  - JOUR
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Filová, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondej
AU  - Burian, Jiri
AU  - Petrović, Srđan M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10523
AB  - Due to its unique material properties, such as extreme hardness and radiation resistance, silicon carbide has been used as an important construction material for environments with extreme conditions, like those present in nuclear reactors. As such, it is constantly exposed to energetic particles (e.g., neutrons) and consequently subjected to gradual crystal lattice degradation. In this article, the 6H-SiC crystal damage has been simulated by the implantation of 4 MeV C3+ ions in the (0001) axial direction of a single 6H-SiC crystal to the ion fluences of 1.359 1015 cm-2, 6.740 1015 cm-2, and 2.02 1016 cm-2. These implanted samples were subsequently analyzed by Rutherford and elastic backscattering spectrometry in the channeling orientation (RBS/C & EBS/C) by the usage of 1 MeV protons. Obtained spectra were analyzed by channeling simulation phenomenological computer code (CSIM) to obtain quantitative crystal damage depth profiles. The difference between the positions of damage profile maxima obtained by CSIM code and one simulated with stopping and range of ions in matter (SRIM), a Monte Carlo based computer code focused on ion implantation simulation in random crystal direction only, is about 10%. Therefore, due to small profile depth shifts, the usage of the iterative procedure for calculating crystal damage depth profiles is proposed. It was shown that profiles obtained by iterative procedure show very good agreement with the ones obtained with CSIM code. Additionally, with the introduction of channeling to random energy loss ratio the energy to depth profile scale conversion, the agreement with CSIM profiles becomes excellent.
T2  - Nuclear Technology and Radiation Protection
T1  - Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code
VL  - 37
IS  - 2
SP  - 128
EP  - 137
DO  - 10.2298/NTRP2202128G
ER  - 

@article{
author = "Gloginjić, Marko and Erich, Marko and Mravik, Željko and Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Filová, Vendula and Katovský, Karel and Štastný, Ondej and Burian, Jiri and Petrović, Srđan M.",
year = "2022",
abstract = "Due to its unique material properties, such as extreme hardness and radiation resistance, silicon carbide has been used as an important construction material for environments with extreme conditions, like those present in nuclear reactors. As such, it is constantly exposed to energetic particles (e.g., neutrons) and consequently subjected to gradual crystal lattice degradation. In this article, the 6H-SiC crystal damage has been simulated by the implantation of 4 MeV C3+ ions in the (0001) axial direction of a single 6H-SiC crystal to the ion fluences of 1.359 1015 cm-2, 6.740 1015 cm-2, and 2.02 1016 cm-2. These implanted samples were subsequently analyzed by Rutherford and elastic backscattering spectrometry in the channeling orientation (RBS/C & EBS/C) by the usage of 1 MeV protons. Obtained spectra were analyzed by channeling simulation phenomenological computer code (CSIM) to obtain quantitative crystal damage depth profiles. The difference between the positions of damage profile maxima obtained by CSIM code and one simulated with stopping and range of ions in matter (SRIM), a Monte Carlo based computer code focused on ion implantation simulation in random crystal direction only, is about 10%. Therefore, due to small profile depth shifts, the usage of the iterative procedure for calculating crystal damage depth profiles is proposed. It was shown that profiles obtained by iterative procedure show very good agreement with the ones obtained with CSIM code. Additionally, with the introduction of channeling to random energy loss ratio the energy to depth profile scale conversion, the agreement with CSIM profiles becomes excellent.",
journal = "Nuclear Technology and Radiation Protection",
title = "Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code",
volume = "37",
number = "2",
pages = "128-137",
doi = "10.2298/NTRP2202128G"
}

Gloginjić, M., Erich, M., Mravik, Ž., Vrban, B., Čerba, Š., Lüley, J., Filová, V., Katovský, K., Štastný, O., Burian, J.,& Petrović, S. M.. (2022). Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code. in Nuclear Technology and Radiation Protection, 37(2), 128-137.
https://doi.org/10.2298/NTRP2202128G

Gloginjić M, Erich M, Mravik Ž, Vrban B, Čerba Š, Lüley J, Filová V, Katovský K, Štastný O, Burian J, Petrović SM. Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code. in Nuclear Technology and Radiation Protection. 2022;37(2):128-137.
doi:10.2298/NTRP2202128G .

Gloginjić, Marko, Erich, Marko, Mravik, Željko, Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Filová, Vendula, Katovský, Karel, Štastný, Ondej, Burian, Jiri, Petrović, Srđan M., "Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code" in Nuclear Technology and Radiation Protection, 37, no. 2 (2022):128-137,
https://doi.org/10.2298/NTRP2202128G . .

TY  - CONF
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Filová, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondřej
AU  - Burian, Jiří
AU  - Petrović, Srđan M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10822
AB  - During the ion implantation process, regardless if it was attentional or not, amorphization will be introduced into the crystal structure. Depending on the chosen ions, different quantities of the amorphization will be introduced for the same applied fluences. In order to estimate the total amorphization of the SiC crystal for different ions and fluences combination, an assessment model was proposed. For this purpose, 4 MeV carbon and silicon ions with multiple fluences were implanted in the [0001] axial direction of a 6H-SiC single crystal. The amorphization depth distributions were obtained by Elastic Backscattering Spectroscopy/channeling spectra analysis via Channeling SIMulation (CSIM) phenomenological computer code. As a result, relation of the total induced amorphization and implantation fluences for carbon and silicon ions were obtained. Based on these experimental results, a total amorphization assessment model for different ions (energy of 4 MeV) and fluences combination was established.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
T1  - Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence
SP  - 82
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10822
ER  - 

@conference{
author = "Gloginjić, Marko and Erich, Marko and Mravik, Željko and Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Filová, Vendula and Katovský, Karel and Štastný, Ondřej and Burian, Jiří and Petrović, Srđan M.",
year = "2022",
abstract = "During the ion implantation process, regardless if it was attentional or not, amorphization will be introduced into the crystal structure. Depending on the chosen ions, different quantities of the amorphization will be introduced for the same applied fluences. In order to estimate the total amorphization of the SiC crystal for different ions and fluences combination, an assessment model was proposed. For this purpose, 4 MeV carbon and silicon ions with multiple fluences were implanted in the [0001] axial direction of a 6H-SiC single crystal. The amorphization depth distributions were obtained by Elastic Backscattering Spectroscopy/channeling spectra analysis via Channeling SIMulation (CSIM) phenomenological computer code. As a result, relation of the total induced amorphization and implantation fluences for carbon and silicon ions were obtained. Based on these experimental results, a total amorphization assessment model for different ions (energy of 4 MeV) and fluences combination was established.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade",
title = "Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence",
pages = "82",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10822"
}

Gloginjić, M., Erich, M., Mravik, Ž., Vrban, B., Čerba, Š., Lüley, J., Filová, V., Katovský, K., Štastný, O., Burian, J.,& Petrović, S. M.. (2022). Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
Belgrade : Serbian Ceramic Society., 82.
https://hdl.handle.net/21.15107/rcub_vinar_10822

Gloginjić M, Erich M, Mravik Ž, Vrban B, Čerba Š, Lüley J, Filová V, Katovský K, Štastný O, Burian J, Petrović SM. Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade. 2022;:82.
https://hdl.handle.net/21.15107/rcub_vinar_10822 .

Gloginjić, Marko, Erich, Marko, Mravik, Željko, Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Filová, Vendula, Katovský, Karel, Štastný, Ondřej, Burian, Jiří, Petrović, Srđan M., "Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence" in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade (2022):82,
https://hdl.handle.net/21.15107/rcub_vinar_10822 .

TY  - CONF
AU  - Katovsky, Karel
AU  - Burian, Jiří
AU  - Čerba, Štefan
AU  - Erich, Marko
AU  - Filová, Vendula
AU  - Gloginjić, Marko
AU  - Lüley, Jakub
AU  - Mravik, Željko
AU  - Petrović, Srđan
AU  - Šťastný, Ondřej
AU  - Vrban, Branislav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12491
AB  - Neutron activation measurement using set of thin foils from highly pure materials is a method known for decades. Using shielding materials like cadmium might add an extra information about neutron field which causes the activation. We very often use relation of activity of bare foil to the activity of the same foil covered by cadmium, and call it cadmium ratio or cadmium spectral index. We could use the same way to define another spectral indices like gadolinium ratio, hafnium ratio, boron ratio, etc. Manipulation with some specific materials like pure gadolinium, samarium, dysprosium or even boron is difficult, sometimes impossible. We introduce and tested method of ion implantation of neutron shielding material directly to the activation foil, and thus redefine spectral index as a ratio between activity of foil without implanted absorber to the activity with implanted absorber. For thicker layers of absorber another method, a vapor deposition, was used and tested. Activities are tested in systems with different neutron spectra, and compared with theoretical models and MCNP simulations.
C3  - APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts
T1  - Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12491
ER  - 

@conference{
author = "Katovsky, Karel and Burian, Jiří and Čerba, Štefan and Erich, Marko and Filová, Vendula and Gloginjić, Marko and Lüley, Jakub and Mravik, Željko and Petrović, Srđan and Šťastný, Ondřej and Vrban, Branislav",
year = "2022",
abstract = "Neutron activation measurement using set of thin foils from highly pure materials is a method known for decades. Using shielding materials like cadmium might add an extra information about neutron field which causes the activation. We very often use relation of activity of bare foil to the activity of the same foil covered by cadmium, and call it cadmium ratio or cadmium spectral index. We could use the same way to define another spectral indices like gadolinium ratio, hafnium ratio, boron ratio, etc. Manipulation with some specific materials like pure gadolinium, samarium, dysprosium or even boron is difficult, sometimes impossible. We introduce and tested method of ion implantation of neutron shielding material directly to the activation foil, and thus redefine spectral index as a ratio between activity of foil without implanted absorber to the activity with implanted absorber. For thicker layers of absorber another method, a vapor deposition, was used and tested. Activities are tested in systems with different neutron spectra, and compared with theoretical models and MCNP simulations.",
journal = "APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts",
title = "Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12491"
}

Katovsky, K., Burian, J., Čerba, Š., Erich, M., Filová, V., Gloginjić, M., Lüley, J., Mravik, Ž., Petrović, S., Šťastný, O.,& Vrban, B.. (2022). Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition. in APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts.
https://hdl.handle.net/21.15107/rcub_vinar_12491

Katovsky K, Burian J, Čerba Š, Erich M, Filová V, Gloginjić M, Lüley J, Mravik Ž, Petrović S, Šťastný O, Vrban B. Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition. in APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts. 2022;.
https://hdl.handle.net/21.15107/rcub_vinar_12491 .

Katovsky, Karel, Burian, Jiří, Čerba, Štefan, Erich, Marko, Filová, Vendula, Gloginjić, Marko, Lüley, Jakub, Mravik, Željko, Petrović, Srđan, Šťastný, Ondřej, Vrban, Branislav, "Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition" in APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts (2022),
https://hdl.handle.net/21.15107/rcub_vinar_12491 .

TY  - CONF
AU  - Burian, Jiří
AU  - Čerba, Štefan
AU  - Erich, Marko
AU  - Filová, Vendula
AU  - Gloginjić, Marko
AU  - Katovský, Karel
AU  - Luley, Jakub
AU  - Mravik, Željko
AU  - Nečas, Vladimír
AU  - Petrović, Srđan
AU  - Šťastný, Ondřej
AU  - Vrban, Branislav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12497
AB  - With regard to progress achieved in computation methods of ionizing radiation transport in various materials, there is increased need for validation of such computer codes with experiments. Therefore, special measurement equipment has been built at Brno University of Technology. It serves for experimental determination of attenuation coefficients of various shielding materials. Special focus is put on inhomogeneous materials, new composites, and non-standard shielding bricks which are usually used for various inside shielding reinforcement. Various measurements methods are tested, different detectors (gas filled, semi-conductor, scintillation, etc.) are used. Dependence on measurement geometry is also tested. Basic build-up factor measurements have also been done and its investigation will continue. Experimental results are then compared with values obtained by Monte Carlo methods based codes such as MCNP and PHITS. Results are then compared with literature and possibility of the methodology further utilization is discussed in conclusions.
C3  - DRO 2021 - Dny radiační ochrany XLII : Book of abstracts
T1  - Precise experimental determination of attenuation coefficient and its simulation
SP  - 131
EP  - 131
DO  - 10.14311/DRO.2021.XLII
ER  - 

@conference{
author = "Burian, Jiří and Čerba, Štefan and Erich, Marko and Filová, Vendula and Gloginjić, Marko and Katovský, Karel and Luley, Jakub and Mravik, Željko and Nečas, Vladimír and Petrović, Srđan and Šťastný, Ondřej and Vrban, Branislav",
year = "2022",
abstract = "With regard to progress achieved in computation methods of ionizing radiation transport in various materials, there is increased need for validation of such computer codes with experiments. Therefore, special measurement equipment has been built at Brno University of Technology. It serves for experimental determination of attenuation coefficients of various shielding materials. Special focus is put on inhomogeneous materials, new composites, and non-standard shielding bricks which are usually used for various inside shielding reinforcement. Various measurements methods are tested, different detectors (gas filled, semi-conductor, scintillation, etc.) are used. Dependence on measurement geometry is also tested. Basic build-up factor measurements have also been done and its investigation will continue. Experimental results are then compared with values obtained by Monte Carlo methods based codes such as MCNP and PHITS. Results are then compared with literature and possibility of the methodology further utilization is discussed in conclusions.",
journal = "DRO 2021 - Dny radiační ochrany XLII : Book of abstracts",
title = "Precise experimental determination of attenuation coefficient and its simulation",
pages = "131-131",
doi = "10.14311/DRO.2021.XLII"
}

Burian, J., Čerba, Š., Erich, M., Filová, V., Gloginjić, M., Katovský, K., Luley, J., Mravik, Ž., Nečas, V., Petrović, S., Šťastný, O.,& Vrban, B.. (2022). Precise experimental determination of attenuation coefficient and its simulation. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts, 131-131.
https://doi.org/10.14311/DRO.2021.XLII

Burian J, Čerba Š, Erich M, Filová V, Gloginjić M, Katovský K, Luley J, Mravik Ž, Nečas V, Petrović S, Šťastný O, Vrban B. Precise experimental determination of attenuation coefficient and its simulation. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts. 2022;:131-131.
doi:10.14311/DRO.2021.XLII .

Burian, Jiří, Čerba, Štefan, Erich, Marko, Filová, Vendula, Gloginjić, Marko, Katovský, Karel, Luley, Jakub, Mravik, Željko, Nečas, Vladimír, Petrović, Srđan, Šťastný, Ondřej, Vrban, Branislav, "Precise experimental determination of attenuation coefficient and its simulation" in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts (2022):131-131,
https://doi.org/10.14311/DRO.2021.XLII . .

TY  - CONF
AU  - Čerba, Štefan
AU  - Vrban, Branislav
AU  - Luley, Jakub
AU  - Nečas, Vladimír
AU  - Katovský, Karel
AU  - Šťastný, Ondřej
AU  - Filová, Vendula
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Petrović, Srđan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12500
AB  - Since World War II there has been a significant development of methods and approaches used in the calculation of radiation shielding. Over time, modelling and simulation of relevant effects shifted from an analytical modelling to methods based on the so-called primary principles and their stochastic nature. Even nowadays it is necessary to know the accuracy of available computation codes, used nuclear data and it is desirable to evaluate the influence of the user on the final calculated parameter. One of the most effective ways of gaining user experience and minimizing user effects on the results of calculation is international collaboration comprising the designing and constructing of relevant benchmark experiments, following simulation with state-of-the-art calculation tools, comparison of work group results and subsequent identification of the source of observed deviations from the experiment. Currently a new experimental workplace, the so called “Mini Labyrinth” is being developed at STU. It is a simple neutron and gamma shielding benchmark, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP experiment. The latest V1 experimental setup consists of a PuBe neutron source, several NEUTRONSTOP C5 shielding blocks (polyethylene with 5 % boron), H2O filled PLA tank, plastic source holder, and detectors placed inside the Mini Labyrinth and around the experimental workplace. This paper is indeed focused on the monitoring of the radiation doses around the workplace using the NUVIATEC NUDET detector and the Thermo Scientific RadEye personal dose meter, as well as on the comparison of the measured quantities with ones simulated by MONACO (as a part of SCALE 6.2.4 system) and MCNP 6. The influence of different cross-section libraries and propagation of cross-section uncertainties is studied through this shielding analysis. The achieved results are included and finally, some discussions on further needed development are also included.
C3  - DRO 2021 - Dny radiační ochrany XLII : Book of abstracts
T1  - Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU
SP  - 24
EP  - 24
DO  - 10.14311/DRO.2021.XLII
ER  - 

@conference{
author = "Čerba, Štefan and Vrban, Branislav and Luley, Jakub and Nečas, Vladimír and Katovský, Karel and Šťastný, Ondřej and Filová, Vendula and Gloginjić, Marko and Erich, Marko and Mravik, Željko and Petrović, Srđan",
year = "2022",
abstract = "Since World War II there has been a significant development of methods and approaches used in the calculation of radiation shielding. Over time, modelling and simulation of relevant effects shifted from an analytical modelling to methods based on the so-called primary principles and their stochastic nature. Even nowadays it is necessary to know the accuracy of available computation codes, used nuclear data and it is desirable to evaluate the influence of the user on the final calculated parameter. One of the most effective ways of gaining user experience and minimizing user effects on the results of calculation is international collaboration comprising the designing and constructing of relevant benchmark experiments, following simulation with state-of-the-art calculation tools, comparison of work group results and subsequent identification of the source of observed deviations from the experiment. Currently a new experimental workplace, the so called “Mini Labyrinth” is being developed at STU. It is a simple neutron and gamma shielding benchmark, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP experiment. The latest V1 experimental setup consists of a PuBe neutron source, several NEUTRONSTOP C5 shielding blocks (polyethylene with 5 % boron), H2O filled PLA tank, plastic source holder, and detectors placed inside the Mini Labyrinth and around the experimental workplace. This paper is indeed focused on the monitoring of the radiation doses around the workplace using the NUVIATEC NUDET detector and the Thermo Scientific RadEye personal dose meter, as well as on the comparison of the measured quantities with ones simulated by MONACO (as a part of SCALE 6.2.4 system) and MCNP 6. The influence of different cross-section libraries and propagation of cross-section uncertainties is studied through this shielding analysis. The achieved results are included and finally, some discussions on further needed development are also included.",
journal = "DRO 2021 - Dny radiační ochrany XLII : Book of abstracts",
title = "Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU",
pages = "24-24",
doi = "10.14311/DRO.2021.XLII"
}

Čerba, Š., Vrban, B., Luley, J., Nečas, V., Katovský, K., Šťastný, O., Filová, V., Gloginjić, M., Erich, M., Mravik, Ž.,& Petrović, S.. (2022). Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts, 24-24.
https://doi.org/10.14311/DRO.2021.XLII

Čerba Š, Vrban B, Luley J, Nečas V, Katovský K, Šťastný O, Filová V, Gloginjić M, Erich M, Mravik Ž, Petrović S. Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts. 2022;:24-24.
doi:10.14311/DRO.2021.XLII .

Čerba, Štefan, Vrban, Branislav, Luley, Jakub, Nečas, Vladimír, Katovský, Karel, Šťastný, Ondřej, Filová, Vendula, Gloginjić, Marko, Erich, Marko, Mravik, Željko, Petrović, Srđan, "Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU" in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts (2022):24-24,
https://doi.org/10.14311/DRO.2021.XLII . .

TY  - JOUR
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Nečas, Vladimír
AU  - Filova, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondrej
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Petrović, Srdjan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10498
AB  - The Mini Labyrinth experiment is a neutron and gamma shielding experiment currently being developed at the Slovak University of Technology, Bratislava (STU). The STU Mini Labyrinth consists of NEUTRONSTOP shielding blocks, water tank, PuBe neutron source, and graphite prism. This article describes the second construction version of the Mini Labyrinth experiment and presents the newest results of the neutron and gamma fields’ simulation and measurement. The PuBe neutron source with the emission rate of 1.06E7 $\textn\cdot \texts^-1$ was used in the experiment. The measurement of gamma ambient dose equivalent H*(10) and neutron count rates is performed by the Thermo Scientific RadEye portable survey meter and the SNM-11 BF3-filled corona detector. The simulation part was carried out using the state-of-the-art MCNP6 and SCALE6 MONACO stochastic calculation tools, considering the detailed geometry of the Mini Labyrinth and a combined neutron and gamma source of particles. The comparisons were performed between codes and the experiment. The propagation of cross-sectional uncertainties was investigated through the shielding analysis. Almost perfect agreements between simulation codes were achieved. The comparison with measurement suggests the further needs of room effect assessment.
T2  - IEEE Transactions on Nuclear Science
T1  - The Mini Labyrinth Benchmark for Radiation Protection and Shielding Analysis
VL  - 69
IS  - 4
SP  - 745
EP  - 752
DO  - 10.1109/TNS.2022.3144838
ER  - 

@article{
author = "Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Nečas, Vladimír and Filova, Vendula and Katovský, Karel and Štastný, Ondrej and Gloginjić, Marko and Erich, Marko and Mravik, Željko and Petrović, Srdjan",
year = "2022",
abstract = "The Mini Labyrinth experiment is a neutron and gamma shielding experiment currently being developed at the Slovak University of Technology, Bratislava (STU). The STU Mini Labyrinth consists of NEUTRONSTOP shielding blocks, water tank, PuBe neutron source, and graphite prism. This article describes the second construction version of the Mini Labyrinth experiment and presents the newest results of the neutron and gamma fields’ simulation and measurement. The PuBe neutron source with the emission rate of 1.06E7 $\textn\cdot \texts^-1$ was used in the experiment. The measurement of gamma ambient dose equivalent H*(10) and neutron count rates is performed by the Thermo Scientific RadEye portable survey meter and the SNM-11 BF3-filled corona detector. The simulation part was carried out using the state-of-the-art MCNP6 and SCALE6 MONACO stochastic calculation tools, considering the detailed geometry of the Mini Labyrinth and a combined neutron and gamma source of particles. The comparisons were performed between codes and the experiment. The propagation of cross-sectional uncertainties was investigated through the shielding analysis. Almost perfect agreements between simulation codes were achieved. The comparison with measurement suggests the further needs of room effect assessment.",
journal = "IEEE Transactions on Nuclear Science",
title = "The Mini Labyrinth Benchmark for Radiation Protection and Shielding Analysis",
volume = "69",
number = "4",
pages = "745-752",
doi = "10.1109/TNS.2022.3144838"
}

Vrban, B., Čerba, Š., Lüley, J., Nečas, V., Filova, V., Katovský, K., Štastný, O., Gloginjić, M., Erich, M., Mravik, Ž.,& Petrović, S.. (2022). The Mini Labyrinth Benchmark for Radiation Protection and Shielding Analysis. in IEEE Transactions on Nuclear Science, 69(4), 745-752.
https://doi.org/10.1109/TNS.2022.3144838

Vrban B, Čerba Š, Lüley J, Nečas V, Filova V, Katovský K, Štastný O, Gloginjić M, Erich M, Mravik Ž, Petrović S. The Mini Labyrinth Benchmark for Radiation Protection and Shielding Analysis. in IEEE Transactions on Nuclear Science. 2022;69(4):745-752.
doi:10.1109/TNS.2022.3144838 .

Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Nečas, Vladimír, Filova, Vendula, Katovský, Karel, Štastný, Ondrej, Gloginjić, Marko, Erich, Marko, Mravik, Željko, Petrović, Srdjan, "The Mini Labyrinth Benchmark for Radiation Protection and Shielding Analysis" in IEEE Transactions on Nuclear Science, 69, no. 4 (2022):745-752,
https://doi.org/10.1109/TNS.2022.3144838 . .

TY  - JOUR
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Kokkoris, Michael
AU  - Liarokapis, Efthymios
AU  - Fazinić, Stjepko
AU  - Karlušić, Marko
AU  - Tomić Luketić, Kristina
AU  - Petrović, Srđan M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9858
AB  - The hexagonal silicon carbide (6H-SiC) is one of materials used in nuclear applications, and as such is exposed to crystal damage inducing by variety of energetic particles like neutrons. In this article the 6H-SiC crystal lattice damage was introduced by the 4 MeV C3+ and 4 MeV Si3+ channelling ion implantation at the room temperature. The implantation of C and Si ions (so called self-ions) to the set of different fluences, achieves a 6H-SiC crystal lattice damage more similar to what the exposure to neutrons would produce. The 6H-SiC crystal damage has been investigated by the Elastic Backscattering spectra taken in the channeling orientation (EBS/C). EBS/C spectra of the implanted 6H-SiC samples were taken with 1.725 MeV and 1.860 MeV protons. By fitting the EBS/C spectra, the quantitative 6H-SiC crystal damage depth profiles were obtained. Further, the cross section of crystal's implanted region has been scanned with the micro-Raman (μR) technique for a comparison. In this way, the qualitative analysis of a non-crystalline phase as a function of the crystal depth was independently determined. Additionally, a scanning electron microscopy (SEM) image was taken of the implanted crystal cross sections. The comparison of the crystal damage profiles obtained by fitting EBS/C spectra with the corresponding ones obtained with the μR and SEM techniques shows very good consistency between them.
T2  - Journal of Nuclear Materials
T1  - The quantitative 6H-SiC crystal damage depth profiling
VL  - 555
SP  - 153143
DO  - 10.1016/j.jnucmat.2021.153143
ER  - 

@article{
author = "Gloginjić, Marko and Erich, Marko and Kokkoris, Michael and Liarokapis, Efthymios and Fazinić, Stjepko and Karlušić, Marko and Tomić Luketić, Kristina and Petrović, Srđan M.",
year = "2021",
abstract = "The hexagonal silicon carbide (6H-SiC) is one of materials used in nuclear applications, and as such is exposed to crystal damage inducing by variety of energetic particles like neutrons. In this article the 6H-SiC crystal lattice damage was introduced by the 4 MeV C3+ and 4 MeV Si3+ channelling ion implantation at the room temperature. The implantation of C and Si ions (so called self-ions) to the set of different fluences, achieves a 6H-SiC crystal lattice damage more similar to what the exposure to neutrons would produce. The 6H-SiC crystal damage has been investigated by the Elastic Backscattering spectra taken in the channeling orientation (EBS/C). EBS/C spectra of the implanted 6H-SiC samples were taken with 1.725 MeV and 1.860 MeV protons. By fitting the EBS/C spectra, the quantitative 6H-SiC crystal damage depth profiles were obtained. Further, the cross section of crystal's implanted region has been scanned with the micro-Raman (μR) technique for a comparison. In this way, the qualitative analysis of a non-crystalline phase as a function of the crystal depth was independently determined. Additionally, a scanning electron microscopy (SEM) image was taken of the implanted crystal cross sections. The comparison of the crystal damage profiles obtained by fitting EBS/C spectra with the corresponding ones obtained with the μR and SEM techniques shows very good consistency between them.",
journal = "Journal of Nuclear Materials",
title = "The quantitative 6H-SiC crystal damage depth profiling",
volume = "555",
pages = "153143",
doi = "10.1016/j.jnucmat.2021.153143"
}

Gloginjić, M., Erich, M., Kokkoris, M., Liarokapis, E., Fazinić, S., Karlušić, M., Tomić Luketić, K.,& Petrović, S. M.. (2021). The quantitative 6H-SiC crystal damage depth profiling. in Journal of Nuclear Materials, 555, 153143.
https://doi.org/10.1016/j.jnucmat.2021.153143

Gloginjić M, Erich M, Kokkoris M, Liarokapis E, Fazinić S, Karlušić M, Tomić Luketić K, Petrović SM. The quantitative 6H-SiC crystal damage depth profiling. in Journal of Nuclear Materials. 2021;555:153143.
doi:10.1016/j.jnucmat.2021.153143 .

Gloginjić, Marko, Erich, Marko, Kokkoris, Michael, Liarokapis, Efthymios, Fazinić, Stjepko, Karlušić, Marko, Tomić Luketić, Kristina, Petrović, Srđan M., "The quantitative 6H-SiC crystal damage depth profiling" in Journal of Nuclear Materials, 555 (2021):153143,
https://doi.org/10.1016/j.jnucmat.2021.153143 . .

TY  - CONF
AU  - Gloginjić, Marko
AU  - Mravik, Željko
AU  - Bajuk-Bogdanović, Danica
AU  - Olejniczak, Andrzej
AU  - Skuratov, Vladimir A.
AU  - Pašti, Igor
AU  - Jovanović, Zoran
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12439
AB  - Surface oxygen groups may have a significant impact on the electrochemical charge storage properties of graphene oxide (GO). The presence of these groups on GO should be properly balanced so that electronic conductivity is optimized, while only the groups that are beneficial to capacitance are preserved. Ion beam irradiation can be identified as a technique where a controllable change of surface chemistry and structure of GO is possible through varying the energy and the fluence of an ion beam. In the present study, the influence of proton-beam irradiation on the surface chemistry and structural properties of GO paper was investigated. GO paper was irradiated with 15 keV proton-beam to fluences from 5×1016 to 2×1017 ions cm-2, while Fourier-transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy (RS) were used for the analysis of the surface chemistry and structural properties. Results indicate increasing reduction of surface oxygen groups and the preferential removal of the alkoxy and epoxy groups as fluence increased. Desorption of these basal plane groups was outlined in our previous work as important for charge storage capacity, probably due to conductivity increase [1]. When oxygen content was compared to: 1) relative areas of specific functional groups from FTIR and XPS and 2) parameters of Raman peaks, an interesting correlation was found that suggest optimal fluences for tuning the surface chemistry and structural properties of GO. Modification of surface chemistry originates from the physical and chemical effects of ion beam irradiation which were also investigated theoretically. The interaction of functional groups with H-atom was investigated using DFT and semi-empirical (SE) approach. SE calculations revealed that the chemical reduction of the epoxy group appears at H-atom energies below 1.5 eV. Results indicate that ion-beam irradiation can be used for controllable modification of surface chemistry of GO where the applied fluence can be used for tuning the degree of change, which may have implications to electrochemical charge storage properties.
PB  - Belgrade : Faculty of Physical Chemistry
C3  - 4IMMSERA : The 4th International Conference on Materials Science for Energy Related Applications : Book of abstracts
T1  - Modification of surface oxygen groups of graphene oxide by ion beam irradiation for supercapacitor applications
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12439
ER  - 

@conference{
author = "Gloginjić, Marko and Mravik, Željko and Bajuk-Bogdanović, Danica and Olejniczak, Andrzej and Skuratov, Vladimir A. and Pašti, Igor and Jovanović, Zoran",
year = "2021",
abstract = "Surface oxygen groups may have a significant impact on the electrochemical charge storage properties of graphene oxide (GO). The presence of these groups on GO should be properly balanced so that electronic conductivity is optimized, while only the groups that are beneficial to capacitance are preserved. Ion beam irradiation can be identified as a technique where a controllable change of surface chemistry and structure of GO is possible through varying the energy and the fluence of an ion beam. In the present study, the influence of proton-beam irradiation on the surface chemistry and structural properties of GO paper was investigated. GO paper was irradiated with 15 keV proton-beam to fluences from 5×1016 to 2×1017 ions cm-2, while Fourier-transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy (RS) were used for the analysis of the surface chemistry and structural properties. Results indicate increasing reduction of surface oxygen groups and the preferential removal of the alkoxy and epoxy groups as fluence increased. Desorption of these basal plane groups was outlined in our previous work as important for charge storage capacity, probably due to conductivity increase [1]. When oxygen content was compared to: 1) relative areas of specific functional groups from FTIR and XPS and 2) parameters of Raman peaks, an interesting correlation was found that suggest optimal fluences for tuning the surface chemistry and structural properties of GO. Modification of surface chemistry originates from the physical and chemical effects of ion beam irradiation which were also investigated theoretically. The interaction of functional groups with H-atom was investigated using DFT and semi-empirical (SE) approach. SE calculations revealed that the chemical reduction of the epoxy group appears at H-atom energies below 1.5 eV. Results indicate that ion-beam irradiation can be used for controllable modification of surface chemistry of GO where the applied fluence can be used for tuning the degree of change, which may have implications to electrochemical charge storage properties.",
publisher = "Belgrade : Faculty of Physical Chemistry",
journal = "4IMMSERA : The 4th International Conference on Materials Science for Energy Related Applications : Book of abstracts",
title = "Modification of surface oxygen groups of graphene oxide by ion beam irradiation for supercapacitor applications",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12439"
}

Gloginjić, M., Mravik, Ž., Bajuk-Bogdanović, D., Olejniczak, A., Skuratov, V. A., Pašti, I.,& Jovanović, Z.. (2021). Modification of surface oxygen groups of graphene oxide by ion beam irradiation for supercapacitor applications. in 4IMMSERA : The 4th International Conference on Materials Science for Energy Related Applications : Book of abstracts
Belgrade : Faculty of Physical Chemistry..
https://hdl.handle.net/21.15107/rcub_vinar_12439

Gloginjić M, Mravik Ž, Bajuk-Bogdanović D, Olejniczak A, Skuratov VA, Pašti I, Jovanović Z. Modification of surface oxygen groups of graphene oxide by ion beam irradiation for supercapacitor applications. in 4IMMSERA : The 4th International Conference on Materials Science for Energy Related Applications : Book of abstracts. 2021;.
https://hdl.handle.net/21.15107/rcub_vinar_12439 .

Gloginjić, Marko, Mravik, Željko, Bajuk-Bogdanović, Danica, Olejniczak, Andrzej, Skuratov, Vladimir A., Pašti, Igor, Jovanović, Zoran, "Modification of surface oxygen groups of graphene oxide by ion beam irradiation for supercapacitor applications" in 4IMMSERA : The 4th International Conference on Materials Science for Energy Related Applications : Book of abstracts (2021),
https://hdl.handle.net/21.15107/rcub_vinar_12439 .

TY  - CONF
AU  - Gloginjić, Marko
AU  - Mravik, Željko
AU  - Bajuk-Bogdanović, Danica V.
AU  - Olejniczak, Andrzej
AU  - Skuratov, Vladimir A.
AU  - Jovanović, Zoran M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10833
AB  - Graphene oxide (GO) is a promising material for the futuregraphene-based electronics where the surface chemistry and structural properties of GO may play an important role. One of the unique methods with great potentialfor controllable modification of materials’ properties is the ion beam irradiation. In the present study, GO paper was irradiated with 15 keV proton- beam to a fluences from 5×10 16 to 2×1017 ionscm-2 , while Fourier-transform infrared spectroscopy (ATR-FTIR), X-ray photoelectronspectroscopy (XPS) and Raman spectroscopy (RS)were used for the examination of surface chemistry and structural properties of the irradiated material. It was shown that proton beam irradiation leads to a partial reduction of GOwith the preferential removal of the alkoxy and epoxy groups. With the increasing fluence, the oxygen content from the XPS method and the intensity ratioof D and G Raman bandsboth showed decreasing trends. When oxygen content was compared to relative areas of specific functional groups and parameters of Raman peaks an interesting correlation was found that suggest optimal fluences for tuning the surface chemistry and structural properties of GO. The observed effects on surface chemistry and structural propertiescan be ascribed to physical and chemical effectsof ion beam irradiation. The interaction of functional groups with H-atom was investigated using DFT andsemi-empirical (SE) approach. SE calculations revealed that the reduction of the epoxy group appears at H-atom energies below 1.5 eV. This work identifies ion beam irradiation as a preferable technique for selective removal of surface oxygen groups and structural modification of GO where the applied fluence can be used for tuning the degree of change.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - Surface chemistry and structural properties of proton-beam irradiated graphene oxide paper
SP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10833
ER  - 

@conference{
author = "Gloginjić, Marko and Mravik, Željko and Bajuk-Bogdanović, Danica V. and Olejniczak, Andrzej and Skuratov, Vladimir A. and Jovanović, Zoran M.",
year = "2021",
abstract = "Graphene oxide (GO) is a promising material for the futuregraphene-based electronics where the surface chemistry and structural properties of GO may play an important role. One of the unique methods with great potentialfor controllable modification of materials’ properties is the ion beam irradiation. In the present study, GO paper was irradiated with 15 keV proton- beam to a fluences from 5×10 16 to 2×1017 ionscm-2 , while Fourier-transform infrared spectroscopy (ATR-FTIR), X-ray photoelectronspectroscopy (XPS) and Raman spectroscopy (RS)were used for the examination of surface chemistry and structural properties of the irradiated material. It was shown that proton beam irradiation leads to a partial reduction of GOwith the preferential removal of the alkoxy and epoxy groups. With the increasing fluence, the oxygen content from the XPS method and the intensity ratioof D and G Raman bandsboth showed decreasing trends. When oxygen content was compared to relative areas of specific functional groups and parameters of Raman peaks an interesting correlation was found that suggest optimal fluences for tuning the surface chemistry and structural properties of GO. The observed effects on surface chemistry and structural propertiescan be ascribed to physical and chemical effectsof ion beam irradiation. The interaction of functional groups with H-atom was investigated using DFT andsemi-empirical (SE) approach. SE calculations revealed that the reduction of the epoxy group appears at H-atom energies below 1.5 eV. This work identifies ion beam irradiation as a preferable technique for selective removal of surface oxygen groups and structural modification of GO where the applied fluence can be used for tuning the degree of change.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "Surface chemistry and structural properties of proton-beam irradiated graphene oxide paper",
pages = "73",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10833"
}

Gloginjić, M., Mravik, Ž., Bajuk-Bogdanović, D. V., Olejniczak, A., Skuratov, V. A.,& Jovanović, Z. M.. (2021). Surface chemistry and structural properties of proton-beam irradiated graphene oxide paper. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 73.
https://hdl.handle.net/21.15107/rcub_vinar_10833

Gloginjić M, Mravik Ž, Bajuk-Bogdanović DV, Olejniczak A, Skuratov VA, Jovanović ZM. Surface chemistry and structural properties of proton-beam irradiated graphene oxide paper. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:73.
https://hdl.handle.net/21.15107/rcub_vinar_10833 .

Gloginjić, Marko, Mravik, Željko, Bajuk-Bogdanović, Danica V., Olejniczak, Andrzej, Skuratov, Vladimir A., Jovanović, Zoran M., "Surface chemistry and structural properties of proton-beam irradiated graphene oxide paper" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):73,
https://hdl.handle.net/21.15107/rcub_vinar_10833 .

TY  - CONF
AU  - Mravik, Željko
AU  - Gloginjić, Marko
AU  - Bajuk-Bogdanović, Danica
AU  - Nikolić, Maria Vesna
AU  - Olejniczak, Andrzej
AU  - Gavrilov, Nemanja
AU  - Jovanović, Zoran
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12489
AB  - Graphene oxide (GO) has emerged as a promising material for electrochemical charge storage due to its high capacitance originating from all-surface morphology and different oxygen groups that participate in redox reactions. Ion beam irradiation can be identified as a technique where a controllable change of surface chemistry and structure of GO is possible through varying the energy and the fluence of an ion beam. In the present study, the influence of keV-energy ion-beam irradiation on the surface chemistry, structural and electrical properties of GO paper were investigated. The results of X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy showed an increasing reduction of GO and the preferential removal of the alkoxy and epoxy groups with increasing fluence. Raman analysis showed that there is clear correlation between oxygen content and structural parameters of the irradiated GO. Electric properties of ion beam irradiated GO papers were investigated using the solid-state electrochemical impedance spectroscopy (EIS) and compared to the effects of thermal treatment. With irradiation, lower resistivity of GO papers was observed with fluencies up to 1 × 10 16 ions/cm 2 proving that desorption of basal plane oxygen groups is beneficial for improvement of electric characteristics of material. At higher fluence, a higher defect concentration resulted in an increase of resistivity of the irradiated samples. Additionally, EIS results outlined a different behavior of ion beam irradiated and thermally treated samples (capacitor vs. resistor, respectively), originating from the different extent of modification (ion beam irradiation – modification of few hundred nm and thermal treatment – bulk modification).
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 19th Young Researchers’ Conference - Materials Science and Engineering : Program and the Book of Abstracts
T1  - Surface, structural and electric properties of ion beam irradiated graphene oxide papers
SP  - 38
EP  - 38
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12489
ER  - 

@conference{
author = "Mravik, Željko and Gloginjić, Marko and Bajuk-Bogdanović, Danica and Nikolić, Maria Vesna and Olejniczak, Andrzej and Gavrilov, Nemanja and Jovanović, Zoran",
year = "2021",
abstract = "Graphene oxide (GO) has emerged as a promising material for electrochemical charge storage due to its high capacitance originating from all-surface morphology and different oxygen groups that participate in redox reactions. Ion beam irradiation can be identified as a technique where a controllable change of surface chemistry and structure of GO is possible through varying the energy and the fluence of an ion beam. In the present study, the influence of keV-energy ion-beam irradiation on the surface chemistry, structural and electrical properties of GO paper were investigated. The results of X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy showed an increasing reduction of GO and the preferential removal of the alkoxy and epoxy groups with increasing fluence. Raman analysis showed that there is clear correlation between oxygen content and structural parameters of the irradiated GO. Electric properties of ion beam irradiated GO papers were investigated using the solid-state electrochemical impedance spectroscopy (EIS) and compared to the effects of thermal treatment. With irradiation, lower resistivity of GO papers was observed with fluencies up to 1 × 10 16 ions/cm 2 proving that desorption of basal plane oxygen groups is beneficial for improvement of electric characteristics of material. At higher fluence, a higher defect concentration resulted in an increase of resistivity of the irradiated samples. Additionally, EIS results outlined a different behavior of ion beam irradiated and thermally treated samples (capacitor vs. resistor, respectively), originating from the different extent of modification (ion beam irradiation – modification of few hundred nm and thermal treatment – bulk modification).",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "19th Young Researchers’ Conference - Materials Science and Engineering : Program and the Book of Abstracts",
title = "Surface, structural and electric properties of ion beam irradiated graphene oxide papers",
pages = "38-38",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12489"
}

Mravik, Ž., Gloginjić, M., Bajuk-Bogdanović, D., Nikolić, M. V., Olejniczak, A., Gavrilov, N.,& Jovanović, Z.. (2021). Surface, structural and electric properties of ion beam irradiated graphene oxide papers. in 19th Young Researchers’ Conference - Materials Science and Engineering : Program and the Book of Abstracts
Belgrade : Institute of Technical Sciences of SASA., 38-38.
https://hdl.handle.net/21.15107/rcub_vinar_12489

Mravik Ž, Gloginjić M, Bajuk-Bogdanović D, Nikolić MV, Olejniczak A, Gavrilov N, Jovanović Z. Surface, structural and electric properties of ion beam irradiated graphene oxide papers. in 19th Young Researchers’ Conference - Materials Science and Engineering : Program and the Book of Abstracts. 2021;:38-38.
https://hdl.handle.net/21.15107/rcub_vinar_12489 .

Mravik, Željko, Gloginjić, Marko, Bajuk-Bogdanović, Danica, Nikolić, Maria Vesna, Olejniczak, Andrzej, Gavrilov, Nemanja, Jovanović, Zoran, "Surface, structural and electric properties of ion beam irradiated graphene oxide papers" in 19th Young Researchers’ Conference - Materials Science and Engineering : Program and the Book of Abstracts (2021):38-38,
https://hdl.handle.net/21.15107/rcub_vinar_12489 .

TY  - CONF
AU  - Mravik, Željko
AU  - Gloginjić, Marko
AU  - Bajuk-Bogdanović, Danica
AU  - Pejčić, Milica
AU  - Olejniczak, Andrzej
AU  - Skuratov, Vladimir
AU  - Jovanović, Zoran
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12526
AB  - Surface chemistry of graphene oxide (GO) plays an important role in possible applications of the material. Beside traditional approaches, like thermal treatment, ion beam irradiation has been recognized as a tool for modifying not only the surface chemistry, but also the structural properties of GO. In this study, the GO paper was irradiated with 15 keV proton beam with fluencies from 5×1016 to 2×1017 ions/cm2 . Surface chemistry of GO was monitored with Fourier-transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) while structural changes were investigated with Raman spectroscopy. XPS and ATR-FTIR methods showed partial reduction of GO, with preferential desorption of basal plane alkoxy and epoxy oxygen groups. In terms of structural changes, intensity ratio of D and G peaks decreased linearly with the increase of C/O ratio i.e. increase of fluence. The reduction of GO with hydrogen atom was also investigated dynamically by semi-empirical calculations. The calculations for the epoxy group have identified energy ranges at which reduction is a consequence of physical (>20 eV) or chemical (<1.5 eV) processes. The results are showing a potential of ion beam irradiation for controllable modification of structural and surface properties which can be used for tuning of the charge storage properties of graphene oxide.
PB  - Zagreb, Croatia : Ruđer Bošković Institute
C3  - SCIRES 2021 : The 3rd International Conference Solid-State Science & Research : Book of abstracts
T1  - Surface chemistry of ion beam irradiated graphene oxide papers
SP  - 38
EP  - 38
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12526
ER  - 

@conference{
author = "Mravik, Željko and Gloginjić, Marko and Bajuk-Bogdanović, Danica and Pejčić, Milica and Olejniczak, Andrzej and Skuratov, Vladimir and Jovanović, Zoran",
year = "2021",
abstract = "Surface chemistry of graphene oxide (GO) plays an important role in possible applications of the material. Beside traditional approaches, like thermal treatment, ion beam irradiation has been recognized as a tool for modifying not only the surface chemistry, but also the structural properties of GO. In this study, the GO paper was irradiated with 15 keV proton beam with fluencies from 5×1016 to 2×1017 ions/cm2 . Surface chemistry of GO was monitored with Fourier-transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) while structural changes were investigated with Raman spectroscopy. XPS and ATR-FTIR methods showed partial reduction of GO, with preferential desorption of basal plane alkoxy and epoxy oxygen groups. In terms of structural changes, intensity ratio of D and G peaks decreased linearly with the increase of C/O ratio i.e. increase of fluence. The reduction of GO with hydrogen atom was also investigated dynamically by semi-empirical calculations. The calculations for the epoxy group have identified energy ranges at which reduction is a consequence of physical (>20 eV) or chemical (<1.5 eV) processes. The results are showing a potential of ion beam irradiation for controllable modification of structural and surface properties which can be used for tuning of the charge storage properties of graphene oxide.",
publisher = "Zagreb, Croatia : Ruđer Bošković Institute",
journal = "SCIRES 2021 : The 3rd International Conference Solid-State Science & Research : Book of abstracts",
title = "Surface chemistry of ion beam irradiated graphene oxide papers",
pages = "38-38",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12526"
}

Mravik, Ž., Gloginjić, M., Bajuk-Bogdanović, D., Pejčić, M., Olejniczak, A., Skuratov, V.,& Jovanović, Z.. (2021). Surface chemistry of ion beam irradiated graphene oxide papers. in SCIRES 2021 : The 3rd International Conference Solid-State Science & Research : Book of abstracts
Zagreb, Croatia : Ruđer Bošković Institute., 38-38.
https://hdl.handle.net/21.15107/rcub_vinar_12526

Mravik Ž, Gloginjić M, Bajuk-Bogdanović D, Pejčić M, Olejniczak A, Skuratov V, Jovanović Z. Surface chemistry of ion beam irradiated graphene oxide papers. in SCIRES 2021 : The 3rd International Conference Solid-State Science & Research : Book of abstracts. 2021;:38-38.
https://hdl.handle.net/21.15107/rcub_vinar_12526 .

Mravik, Željko, Gloginjić, Marko, Bajuk-Bogdanović, Danica, Pejčić, Milica, Olejniczak, Andrzej, Skuratov, Vladimir, Jovanović, Zoran, "Surface chemistry of ion beam irradiated graphene oxide papers" in SCIRES 2021 : The 3rd International Conference Solid-State Science & Research : Book of abstracts (2021):38-38,
https://hdl.handle.net/21.15107/rcub_vinar_12526 .

TY  - CONF
AU  - Čerba, Štefan
AU  - Vrban, Branislav
AU  - Lüley, Jakub
AU  - Osuský, Filip
AU  - Nečas, Vladimír
AU  - Štastný, Ondřej
AU  - Katovský, Karel
AU  - Gloginjić, Marko
AU  - Mravik, Željko
AU  - Erich, Marko
AU  - Petrović, Srđan M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10036
AB  - The Mini Labyrinth experiment is a simple neutron and gamma shielding experiment developed at STU, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP benchmark experiment, originally constructed in the former Soviet Union in 1982. Compared to the original Labyrinth, which was made from concrete blocks and had dimension of several meters, the STU Mini Labyrinth is approximately ten times smaller and consists of NEUTRONSTOP shielding blocks. The purpose of this experiment is to validate the computer codes of STU and partners involved in the APVV-DS international project “Experimental and simulation shielding studies of materials used in radiation protection”. This paper gives a brief overview of the experimental workplace and brings the first experimental results and their comparison with computer simulation. The very first experiment performed in the Mini Labyrinth experimental workplace was focused on the measurement of neutron and gamma count rate inside the Mini Labyrinth using the Thermo Scientific RadEye dose meter. The experimental setup also consisted of a PuBe radioisotope neutron source and light water moderator placed in a plastic tank between the neutron source and the detector. The simulation part was carried out using the state-of-the-art MCNP6 and SCALE6 MONACO stochastic calculation tools taking into account the detailed geometry of the labyrinth and a combined neutron- gamma source of particles. The comparisons were performed between codes, based on dose rate in the unique detection positions and using a 3D map of neutron and photon fluxes, using the so called meshtallies. The comparison between the simulated and measured data was performed based on the measured neutron count rate
C3  - AIP Conference Proceedings
T1  - Preliminary results of the STU mini labyrinth radiation shielding experiment
VL  - 2411
IS  - 1
SP  - 070001
DO  - 10.1063/5.0067366
ER  - 

@conference{
author = "Čerba, Štefan and Vrban, Branislav and Lüley, Jakub and Osuský, Filip and Nečas, Vladimír and Štastný, Ondřej and Katovský, Karel and Gloginjić, Marko and Mravik, Željko and Erich, Marko and Petrović, Srđan M.",
year = "2021",
abstract = "The Mini Labyrinth experiment is a simple neutron and gamma shielding experiment developed at STU, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP benchmark experiment, originally constructed in the former Soviet Union in 1982. Compared to the original Labyrinth, which was made from concrete blocks and had dimension of several meters, the STU Mini Labyrinth is approximately ten times smaller and consists of NEUTRONSTOP shielding blocks. The purpose of this experiment is to validate the computer codes of STU and partners involved in the APVV-DS international project “Experimental and simulation shielding studies of materials used in radiation protection”. This paper gives a brief overview of the experimental workplace and brings the first experimental results and their comparison with computer simulation. The very first experiment performed in the Mini Labyrinth experimental workplace was focused on the measurement of neutron and gamma count rate inside the Mini Labyrinth using the Thermo Scientific RadEye dose meter. The experimental setup also consisted of a PuBe radioisotope neutron source and light water moderator placed in a plastic tank between the neutron source and the detector. The simulation part was carried out using the state-of-the-art MCNP6 and SCALE6 MONACO stochastic calculation tools taking into account the detailed geometry of the labyrinth and a combined neutron- gamma source of particles. The comparisons were performed between codes, based on dose rate in the unique detection positions and using a 3D map of neutron and photon fluxes, using the so called meshtallies. The comparison between the simulated and measured data was performed based on the measured neutron count rate",
journal = "AIP Conference Proceedings",
title = "Preliminary results of the STU mini labyrinth radiation shielding experiment",
volume = "2411",
number = "1",
pages = "070001",
doi = "10.1063/5.0067366"
}

Čerba, Š., Vrban, B., Lüley, J., Osuský, F., Nečas, V., Štastný, O., Katovský, K., Gloginjić, M., Mravik, Ž., Erich, M.,& Petrović, S. M.. (2021). Preliminary results of the STU mini labyrinth radiation shielding experiment. in AIP Conference Proceedings, 2411(1), 070001.
https://doi.org/10.1063/5.0067366

Čerba Š, Vrban B, Lüley J, Osuský F, Nečas V, Štastný O, Katovský K, Gloginjić M, Mravik Ž, Erich M, Petrović SM. Preliminary results of the STU mini labyrinth radiation shielding experiment. in AIP Conference Proceedings. 2021;2411(1):070001.
doi:10.1063/5.0067366 .

Čerba, Štefan, Vrban, Branislav, Lüley, Jakub, Osuský, Filip, Nečas, Vladimír, Štastný, Ondřej, Katovský, Karel, Gloginjić, Marko, Mravik, Željko, Erich, Marko, Petrović, Srđan M., "Preliminary results of the STU mini labyrinth radiation shielding experiment" in AIP Conference Proceedings, 2411, no. 1 (2021):070001,
https://doi.org/10.1063/5.0067366 . .

TY  - JOUR
AU  - Flessa, Aikaterini
AU  - Ntemou, Eleni
AU  - Kokkoris, Michael
AU  - Liarokapis, Efthymios
AU  - Gloginjić, Marko
AU  - Petrović, Srđan M.
AU  - Erich, Marko
AU  - Fazinić, Stjepko
AU  - Karlušić, Marko
AU  - Tomić, Kristina
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8439
AB  - A 6H-SiC single crystal implanted in channeling mode by 4-MeV C+3 and Si+3 ions at various doping levels has been examined by scanning electron microscopy (SEM) and micro-Raman spectroscopy in order to study the lattice distortions inflicted by the impinging ions. C ions create zones of strongly damaged regions, parallel to the front face of the wafer with width increasing with the amount of doping. As expected, Si has induced considerably more lattice distortions than C, and more than one order of magnitude less doping induces apparently the same effect as C. Despite the large laser spot size compared with the boundaries of the distorted regions, micro-Raman data provided results agreeing with the SEM pictures and the Monte Carlo calculations using the SRIM-2013 software. From the evolution of the crystalline peaks in the Raman spectra obtained across the damaged area, one can conclude that the impinging ions do not accommodate as defects in the lattice but mostly displace the ions breaking the bonds and destroying the long range order. The spatial correlation model that takes into consideration the intensity variation at the laser spot and the anticipated from Monte Carlo calculations for the collision events can reproduce the trend of the strong transversal optical phonon width indicating nanocrystallites of a few nanometers size in the most damaged area. © 2019 John Wiley & Sons, Ltd.
T2  - Journal of Raman Spectroscopy
T1  - Raman mapping of 4‐MeV C and Si channeling implantation of 6H‐SiC
VL  - 50
IS  - 8
SP  - 1186
EP  - 1196
DO  - 10.1002/jrs.5629
ER  - 

@article{
author = "Flessa, Aikaterini and Ntemou, Eleni and Kokkoris, Michael and Liarokapis, Efthymios and Gloginjić, Marko and Petrović, Srđan M. and Erich, Marko and Fazinić, Stjepko and Karlušić, Marko and Tomić, Kristina",
year = "2019",
abstract = "A 6H-SiC single crystal implanted in channeling mode by 4-MeV C+3 and Si+3 ions at various doping levels has been examined by scanning electron microscopy (SEM) and micro-Raman spectroscopy in order to study the lattice distortions inflicted by the impinging ions. C ions create zones of strongly damaged regions, parallel to the front face of the wafer with width increasing with the amount of doping. As expected, Si has induced considerably more lattice distortions than C, and more than one order of magnitude less doping induces apparently the same effect as C. Despite the large laser spot size compared with the boundaries of the distorted regions, micro-Raman data provided results agreeing with the SEM pictures and the Monte Carlo calculations using the SRIM-2013 software. From the evolution of the crystalline peaks in the Raman spectra obtained across the damaged area, one can conclude that the impinging ions do not accommodate as defects in the lattice but mostly displace the ions breaking the bonds and destroying the long range order. The spatial correlation model that takes into consideration the intensity variation at the laser spot and the anticipated from Monte Carlo calculations for the collision events can reproduce the trend of the strong transversal optical phonon width indicating nanocrystallites of a few nanometers size in the most damaged area. © 2019 John Wiley & Sons, Ltd.",
journal = "Journal of Raman Spectroscopy",
title = "Raman mapping of 4‐MeV C and Si channeling implantation of 6H‐SiC",
volume = "50",
number = "8",
pages = "1186-1196",
doi = "10.1002/jrs.5629"
}

Flessa, A., Ntemou, E., Kokkoris, M., Liarokapis, E., Gloginjić, M., Petrović, S. M., Erich, M., Fazinić, S., Karlušić, M.,& Tomić, K.. (2019). Raman mapping of 4‐MeV C and Si channeling implantation of 6H‐SiC. in Journal of Raman Spectroscopy, 50(8), 1186-1196.
https://doi.org/10.1002/jrs.5629

Flessa A, Ntemou E, Kokkoris M, Liarokapis E, Gloginjić M, Petrović SM, Erich M, Fazinić S, Karlušić M, Tomić K. Raman mapping of 4‐MeV C and Si channeling implantation of 6H‐SiC. in Journal of Raman Spectroscopy. 2019;50(8):1186-1196.
doi:10.1002/jrs.5629 .

Flessa, Aikaterini, Ntemou, Eleni, Kokkoris, Michael, Liarokapis, Efthymios, Gloginjić, Marko, Petrović, Srđan M., Erich, Marko, Fazinić, Stjepko, Karlušić, Marko, Tomić, Kristina, "Raman mapping of 4‐MeV C and Si channeling implantation of 6H‐SiC" in Journal of Raman Spectroscopy, 50, no. 8 (2019):1186-1196,
https://doi.org/10.1002/jrs.5629 . .