TY  - CONF
AU  - Stefanović, Milica
AU  - Jovančićević, Branimir
AU  - Janaćković, Đorđe
AU  - Antić, Nevena
AU  - Gallart, Francesc
AU  - Moreno-de las Heras, Mariano
AU  - Kašanin-Grubin, Milica
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7137
AB  - This study involves establishing a relationship between weathering and erosion processes in badlands comparing the mineralogical and physicochemical properties of unweathered and weathered material formed in the natural environment and under laboratory climate simulation experiments. Three unweathered samples with different mineralogical contents were taken from the badlands of Vallcebre and Bagà in Spain. The climatic conditions in these areas are humid-Mediterranean. Besides quartz and calcite as dominant minerals, one unweathered sample contained smectite and gypsum, the second smectite and the third neither smectite nor gypsum. The laboratory climate simulation experiment was designed so that each sample had two sub-samples, one of which was exposed to rain and the second to snow. In the first part, the samples were placed in a climate chamber at a temperature of -3 °C after simulating rain (~140 ml) or snow (~150 g). After 15 cycles, in the second part of the experiment, all samples were exposed to rain (~140 ml) and placed in a climate chamber at a temperature of 50 °C. These treatments were repeated 8 times. Analyses of the mineralogical and physicochemical properties of the material before and after the experiment give a clear insight into the changes in mineralogy, chemical composition, grain size, porosity, etc. The changes in the microstructure were analysed using Field Emission Scanning Electron Microscopy (FESEM). The particle size distribution was determined by laser diffraction, while mineralogy was determined by X-ray diffraction (XRD). The Brunauer-Emmett-Teller (BET) surface analysis confirmed that the sample with smectite had the highest specific surface area. It was also proved that other measured parameters such as volume and diameter of the pores changed with weathering rate.
C3  - 9th EUGEO Congress, Barcelona 4-7 September 2023
T1  - How do mineralogical and physicochemical properties of badland materials change during weathering and erosion processes?
SP  - 565
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7137
ER  - 

@conference{
author = "Stefanović, Milica and Jovančićević, Branimir and Janaćković, Đorđe and Antić, Nevena and Gallart, Francesc and Moreno-de las Heras, Mariano and Kašanin-Grubin, Milica",
year = "2023",
abstract = "This study involves establishing a relationship between weathering and erosion processes in badlands comparing the mineralogical and physicochemical properties of unweathered and weathered material formed in the natural environment and under laboratory climate simulation experiments. Three unweathered samples with different mineralogical contents were taken from the badlands of Vallcebre and Bagà in Spain. The climatic conditions in these areas are humid-Mediterranean. Besides quartz and calcite as dominant minerals, one unweathered sample contained smectite and gypsum, the second smectite and the third neither smectite nor gypsum. The laboratory climate simulation experiment was designed so that each sample had two sub-samples, one of which was exposed to rain and the second to snow. In the first part, the samples were placed in a climate chamber at a temperature of -3 °C after simulating rain (~140 ml) or snow (~150 g). After 15 cycles, in the second part of the experiment, all samples were exposed to rain (~140 ml) and placed in a climate chamber at a temperature of 50 °C. These treatments were repeated 8 times. Analyses of the mineralogical and physicochemical properties of the material before and after the experiment give a clear insight into the changes in mineralogy, chemical composition, grain size, porosity, etc. The changes in the microstructure were analysed using Field Emission Scanning Electron Microscopy (FESEM). The particle size distribution was determined by laser diffraction, while mineralogy was determined by X-ray diffraction (XRD). The Brunauer-Emmett-Teller (BET) surface analysis confirmed that the sample with smectite had the highest specific surface area. It was also proved that other measured parameters such as volume and diameter of the pores changed with weathering rate.",
journal = "9th EUGEO Congress, Barcelona 4-7 September 2023",
title = "How do mineralogical and physicochemical properties of badland materials change during weathering and erosion processes?",
pages = "565",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7137"
}

Stefanović, M., Jovančićević, B., Janaćković, Đ., Antić, N., Gallart, F., Moreno-de las Heras, M.,& Kašanin-Grubin, M.. (2023). How do mineralogical and physicochemical properties of badland materials change during weathering and erosion processes?. in 9th EUGEO Congress, Barcelona 4-7 September 2023, 565.
https://hdl.handle.net/21.15107/rcub_technorep_7137

Stefanović M, Jovančićević B, Janaćković Đ, Antić N, Gallart F, Moreno-de las Heras M, Kašanin-Grubin M. How do mineralogical and physicochemical properties of badland materials change during weathering and erosion processes?. in 9th EUGEO Congress, Barcelona 4-7 September 2023. 2023;:565.
https://hdl.handle.net/21.15107/rcub_technorep_7137 .

Stefanović, Milica, Jovančićević, Branimir, Janaćković, Đorđe, Antić, Nevena, Gallart, Francesc, Moreno-de las Heras, Mariano, Kašanin-Grubin, Milica, "How do mineralogical and physicochemical properties of badland materials change during weathering and erosion processes?" in 9th EUGEO Congress, Barcelona 4-7 September 2023 (2023):565,
https://hdl.handle.net/21.15107/rcub_technorep_7137 .

TY  - CONF
AU  - Stefanović, Milica
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6739
AB  - The development of metal oxide-based electron transport layers in perovskite solar cells (PSCs) is being intensively researched to achieve highly efficient PSCs. They offer the advantage of higher charge carrier mobility and stability compared to typical organic materials. To reduce the recombination of charge carriers, methylammonium lead bromide (MAPbBr3) perovskite was coupled with vertically aligned TiO2 nanorods (NRs) as an electron transport layer in this study. The TiO2 NRs were grown on commercial FTO glass in hydrothermal conditions. Titanium (IV) isopropoxide (TTIP) was added in drops, slowly, in the diluted solution of HCl. The obtained precursor solution was transferred into a Teflon-lined stainless steel autoclave which contained FTO substrates and heated at 150 °C for 2 h. Then, the substrates were cleaned using DI water and ethanol and annealed at 500 °C for 30 min. The solution of MAPbBr3 in dimethylformamide (DMF) was deposited on TiO2 NRs by spin coating technique. FESEM results showed that TiO2 NRs were porous and oriented vertically upwards to the substrate and that the perovskite material filled the space between TiO2 NRs. Diffuse reflectance spectroscopy measurement of the sample proved that the absorption edge of the prepared TiO2 NRs/MAPbBr3 was extended into the visible range. By measuring the I-V characteristics of the sample in the dark and under visible light, a hysteresis curve was obtained. Prepared TiO2 NRs/MAPbBr3 photodiode will be the basis for the construction of solar cells.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
T1  - Vertically aligned TiO2 nanorod array as an electron transport layer in perovskite photodiode
EP  - 73
SP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6739
ER  - 

@conference{
author = "Stefanović, Milica and Petrović, Rada and Janaćković, Đorđe",
year = "2023",
abstract = "The development of metal oxide-based electron transport layers in perovskite solar cells (PSCs) is being intensively researched to achieve highly efficient PSCs. They offer the advantage of higher charge carrier mobility and stability compared to typical organic materials. To reduce the recombination of charge carriers, methylammonium lead bromide (MAPbBr3) perovskite was coupled with vertically aligned TiO2 nanorods (NRs) as an electron transport layer in this study. The TiO2 NRs were grown on commercial FTO glass in hydrothermal conditions. Titanium (IV) isopropoxide (TTIP) was added in drops, slowly, in the diluted solution of HCl. The obtained precursor solution was transferred into a Teflon-lined stainless steel autoclave which contained FTO substrates and heated at 150 °C for 2 h. Then, the substrates were cleaned using DI water and ethanol and annealed at 500 °C for 30 min. The solution of MAPbBr3 in dimethylformamide (DMF) was deposited on TiO2 NRs by spin coating technique. FESEM results showed that TiO2 NRs were porous and oriented vertically upwards to the substrate and that the perovskite material filled the space between TiO2 NRs. Diffuse reflectance spectroscopy measurement of the sample proved that the absorption edge of the prepared TiO2 NRs/MAPbBr3 was extended into the visible range. By measuring the I-V characteristics of the sample in the dark and under visible light, a hysteresis curve was obtained. Prepared TiO2 NRs/MAPbBr3 photodiode will be the basis for the construction of solar cells.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023",
title = "Vertically aligned TiO2 nanorod array as an electron transport layer in perovskite photodiode",
pages = "73-72",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6739"
}

Stefanović, M., Petrović, R.,& Janaćković, Đ.. (2023). Vertically aligned TiO2 nanorod array as an electron transport layer in perovskite photodiode. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
Belgrade : Serbian Ceramic Society., 72-73.
https://hdl.handle.net/21.15107/rcub_technorep_6739

Stefanović M, Petrović R, Janaćković Đ. Vertically aligned TiO2 nanorod array as an electron transport layer in perovskite photodiode. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023. 2023;:72-73.
https://hdl.handle.net/21.15107/rcub_technorep_6739 .

Stefanović, Milica, Petrović, Rada, Janaćković, Đorđe, "Vertically aligned TiO2 nanorod array as an electron transport layer in perovskite photodiode" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023 (2023):72-73,
https://hdl.handle.net/21.15107/rcub_technorep_6739 .

TY  - CONF
AU  - Antić, Nevena
AU  - Bertalan, László
AU  - Stefanović, Milica
AU  - Kašanin-Grubin, Milica
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7138
AB  - Badlands can develop under different climatic conditions ranging from arid to humid on materials that have a specific combination of physico-chemical properties depending on their mineralogical composition. Mostly these materials are fine-grained terrigenous, lacustrine or marine sediments of different age. However, badlands can also form in volcano-clasitc materials, and Cappadocia badlands in Turkey is the most prominent example. Less known in the literature are two sites also developed in this type of sediments: Đavolja Varoš, on Radan Moutain in SE Serbia and the Kazár badlands in NW Hungary. The Đavolja Varoš badlands, 0.7 km2 in size is formed by the intensive development of rills and gullies on slopes built from thick volcano-clastic material. The initial relief is reduced only to sharp ridges between adjacent gullies. This badland is developed in dacito-andesitic poorly-consolidated poorly-sorted tuffs. The weathering processes are intense and governed by high intensity precipitation and prolonged drying periods. The reddish earth pyramids built of these erodible materials are protected by the cap rock. Loss of balance and fall of the protective cap rock accelerates the erosion. The smaller Kazár badlands covering the area of 1ha are developed in rhyolitic poorly-consolidated highly porous tuffs. Rills and gullies are the dominant geomorphic processes and the weathering is dominated by freeze-thaw processes. At the Kazár badlands earth pyramids are not protected with the cap rock and weathering, disintegration and sheet wash erosion intensively shape the landscape. Although the materials differ slightly in composition, both being poorly sorted, clay-size rich materials make them sensitive to erosion, proving once more the importance of material composition, in this case namely grain size including sorting and mineralogical composition, for badlands development and future evolution.
C3  - 9th EUGEO Congress, Barcelona 4-7 September 2023
T1  - Badlands involcano-clastic rocks: examplesfrom Serbia and Hungary
SP  - 927
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7138
ER  - 

@conference{
author = "Antić, Nevena and Bertalan, László and Stefanović, Milica and Kašanin-Grubin, Milica",
year = "2023",
abstract = "Badlands can develop under different climatic conditions ranging from arid to humid on materials that have a specific combination of physico-chemical properties depending on their mineralogical composition. Mostly these materials are fine-grained terrigenous, lacustrine or marine sediments of different age. However, badlands can also form in volcano-clasitc materials, and Cappadocia badlands in Turkey is the most prominent example. Less known in the literature are two sites also developed in this type of sediments: Đavolja Varoš, on Radan Moutain in SE Serbia and the Kazár badlands in NW Hungary. The Đavolja Varoš badlands, 0.7 km2 in size is formed by the intensive development of rills and gullies on slopes built from thick volcano-clastic material. The initial relief is reduced only to sharp ridges between adjacent gullies. This badland is developed in dacito-andesitic poorly-consolidated poorly-sorted tuffs. The weathering processes are intense and governed by high intensity precipitation and prolonged drying periods. The reddish earth pyramids built of these erodible materials are protected by the cap rock. Loss of balance and fall of the protective cap rock accelerates the erosion. The smaller Kazár badlands covering the area of 1ha are developed in rhyolitic poorly-consolidated highly porous tuffs. Rills and gullies are the dominant geomorphic processes and the weathering is dominated by freeze-thaw processes. At the Kazár badlands earth pyramids are not protected with the cap rock and weathering, disintegration and sheet wash erosion intensively shape the landscape. Although the materials differ slightly in composition, both being poorly sorted, clay-size rich materials make them sensitive to erosion, proving once more the importance of material composition, in this case namely grain size including sorting and mineralogical composition, for badlands development and future evolution.",
journal = "9th EUGEO Congress, Barcelona 4-7 September 2023",
title = "Badlands involcano-clastic rocks: examplesfrom Serbia and Hungary",
pages = "927",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7138"
}

Antić, N., Bertalan, L., Stefanović, M.,& Kašanin-Grubin, M.. (2023). Badlands involcano-clastic rocks: examplesfrom Serbia and Hungary. in 9th EUGEO Congress, Barcelona 4-7 September 2023, 927.
https://hdl.handle.net/21.15107/rcub_technorep_7138

Antić N, Bertalan L, Stefanović M, Kašanin-Grubin M. Badlands involcano-clastic rocks: examplesfrom Serbia and Hungary. in 9th EUGEO Congress, Barcelona 4-7 September 2023. 2023;:927.
https://hdl.handle.net/21.15107/rcub_technorep_7138 .

Antić, Nevena, Bertalan, László, Stefanović, Milica, Kašanin-Grubin, Milica, "Badlands involcano-clastic rocks: examplesfrom Serbia and Hungary" in 9th EUGEO Congress, Barcelona 4-7 September 2023 (2023):927,
https://hdl.handle.net/21.15107/rcub_technorep_7138 .

TY  - JOUR
AU  - Stefanović, Milica
AU  - Šajnović, Aleksandra
AU  - Kašanin-Grubin, Milica
AU  - Vergari, Francesca
AU  - Troiani, Francesco
AU  - Moreno-de-las-Heras, Mariano
AU  - Gallart, Francesc
AU  - Desloges, Joseph
AU  - Jovančićević, Branimir
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6570
AB  - The aim of this study is to investigate the influence of weathering processes on the distribution of n-alkanes in
unweathered and weathered samples of badland material. Organic matter (OM) of both the weathered and
unweathered zones in badland environments is derived from the same sources such any differences between the
n-alkane pattern of the two zones can be attributed to the impact of weathering processes under different climate
conditions. Organic geochemical and mineralogical characterizations were employed to investigate twenty-one
samples from weathered badland environments in Italy, Spain, and Canada that originally derive from marine,
distal alluvial, and fluvial depositional settings, respectively.
According to the distribution of n-alkanes and diterpanes, unweathered samples from Italy have an original
mixed aquatic-terrestrial origin of OM, with a variable (low to moderate) contribution of terrestrial plants as
precursors, while unweathered samples from Spain predominantly contain OM originating from submerged/
floating macrophytes deposited under reducing conditions. Unweathered samples from Canada predominantly
consist of terrigenous OM.
Intensity of changes in n-alkanes distribution when subjected to weathering depends on the type of precursor
biomass and quantity of smectite. Predominantly terrigenous OM under semi-arid conditions shows the highest
affinity for adsorption is in contact with smectite surfaces. Mid- and long-chain odd n-alkanes have a tendency to
build colloidal particles with polar organic compounds such as fatty acids by strong binding and thus their
preservation from degradation is possible.
PB  - Elsevier
T2  - CATENA
T1  - Impact of weathering processes on n-alkane pattern in badlands
SP  - 107352
VL  - 231
DO  - 10.1016/j.catena.2023.107352
ER  - 

@article{
author = "Stefanović, Milica and Šajnović, Aleksandra and Kašanin-Grubin, Milica and Vergari, Francesca and Troiani, Francesco and Moreno-de-las-Heras, Mariano and Gallart, Francesc and Desloges, Joseph and Jovančićević, Branimir",
year = "2023",
abstract = "The aim of this study is to investigate the influence of weathering processes on the distribution of n-alkanes in
unweathered and weathered samples of badland material. Organic matter (OM) of both the weathered and
unweathered zones in badland environments is derived from the same sources such any differences between the
n-alkane pattern of the two zones can be attributed to the impact of weathering processes under different climate
conditions. Organic geochemical and mineralogical characterizations were employed to investigate twenty-one
samples from weathered badland environments in Italy, Spain, and Canada that originally derive from marine,
distal alluvial, and fluvial depositional settings, respectively.
According to the distribution of n-alkanes and diterpanes, unweathered samples from Italy have an original
mixed aquatic-terrestrial origin of OM, with a variable (low to moderate) contribution of terrestrial plants as
precursors, while unweathered samples from Spain predominantly contain OM originating from submerged/
floating macrophytes deposited under reducing conditions. Unweathered samples from Canada predominantly
consist of terrigenous OM.
Intensity of changes in n-alkanes distribution when subjected to weathering depends on the type of precursor
biomass and quantity of smectite. Predominantly terrigenous OM under semi-arid conditions shows the highest
affinity for adsorption is in contact with smectite surfaces. Mid- and long-chain odd n-alkanes have a tendency to
build colloidal particles with polar organic compounds such as fatty acids by strong binding and thus their
preservation from degradation is possible.",
publisher = "Elsevier",
journal = "CATENA",
title = "Impact of weathering processes on n-alkane pattern in badlands",
pages = "107352",
volume = "231",
doi = "10.1016/j.catena.2023.107352"
}

Stefanović, M., Šajnović, A., Kašanin-Grubin, M., Vergari, F., Troiani, F., Moreno-de-las-Heras, M., Gallart, F., Desloges, J.,& Jovančićević, B.. (2023). Impact of weathering processes on n-alkane pattern in badlands. in CATENA
Elsevier., 231, 107352.
https://doi.org/10.1016/j.catena.2023.107352

Stefanović M, Šajnović A, Kašanin-Grubin M, Vergari F, Troiani F, Moreno-de-las-Heras M, Gallart F, Desloges J, Jovančićević B. Impact of weathering processes on n-alkane pattern in badlands. in CATENA. 2023;231:107352.
doi:10.1016/j.catena.2023.107352 .

Stefanović, Milica, Šajnović, Aleksandra, Kašanin-Grubin, Milica, Vergari, Francesca, Troiani, Francesco, Moreno-de-las-Heras, Mariano, Gallart, Francesc, Desloges, Joseph, Jovančićević, Branimir, "Impact of weathering processes on n-alkane pattern in badlands" in CATENA, 231 (2023):107352,
https://doi.org/10.1016/j.catena.2023.107352 . .

TY  - CONF
AU  - Stefanović, Milica
AU  - Lukić, Ivana
AU  - Vujančević, Jelena
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6170
AB  - Supercritical carbon dioxide (sCO2) is an ideal low-temperature cosolvent for perovskite
deposition due to its relatively low critical point (31.2 °C, 73.8 bar), no surface tension, liquidlike density, gas-like viscosity, and diffusivity. It enables faster mass transfer which allows
penetration of crystals in nanoporous structure. The study investigates the influence of time of
deposition of perovskite assisted with supercritical carbon dioxide on the filling of nanotubes.
Perovskite solar cell technology has been developed so fast due to several factors including a
tunable band gap, high absorption coefficient, and low-cost fabrication. The quality of the
perovskite film is important for the high efficiency of perovskite solar cells. Perovskite precursors
are usually deposited from the solution onto a substrate using spin-coating followed by postdeposition treatments, but often it results in low-quality films that cannot provide good
photovoltaic performances. Deposition of perovskite in the presence of sCO2 is a promising
method for the formation of high-quality perovskite layers. In this work, methylammonium lead
bromide perovskite (MAPbBr3) was deposited on TiO2 nanotubes from the solution in
dimethylformamide (DMF) by application of sCO2 at 35 °C and 200 bar for 1 h, and 3 h. FESEM
results show that TiO2 nanotubes were filled with perovskite material in both cases. The diffuse
reflectance spectroscopy measurement of samples proved that the absorption edge of prepared
TiO2 nanotubes/MAPbBr3 was extended to the visible range. Measurement of I-V characteristics
showed that the sample made for 3 h had a higher value of current than the sample prepared for 1
h. The application of sCO2 during the deposition of perovskite has enabled the preparation of a
photodiode with a better contact between TiO2 nanotubes and perovskite which is important for
the future development of solar cells.
PB  - Materials Research Society of Serbia
C3  - 23th Annual Conference YUCOMAT 2022 and 12th WRTCS
T1  - Supercritical CO2 assisted deposition of MAPbBr3 perovskite onto TiO2 nanotubes
SP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6170
ER  - 

@conference{
author = "Stefanović, Milica and Lukić, Ivana and Vujančević, Jelena and Petrović, Rada and Janaćković, Đorđe",
year = "2022",
abstract = "Supercritical carbon dioxide (sCO2) is an ideal low-temperature cosolvent for perovskite
deposition due to its relatively low critical point (31.2 °C, 73.8 bar), no surface tension, liquidlike density, gas-like viscosity, and diffusivity. It enables faster mass transfer which allows
penetration of crystals in nanoporous structure. The study investigates the influence of time of
deposition of perovskite assisted with supercritical carbon dioxide on the filling of nanotubes.
Perovskite solar cell technology has been developed so fast due to several factors including a
tunable band gap, high absorption coefficient, and low-cost fabrication. The quality of the
perovskite film is important for the high efficiency of perovskite solar cells. Perovskite precursors
are usually deposited from the solution onto a substrate using spin-coating followed by postdeposition treatments, but often it results in low-quality films that cannot provide good
photovoltaic performances. Deposition of perovskite in the presence of sCO2 is a promising
method for the formation of high-quality perovskite layers. In this work, methylammonium lead
bromide perovskite (MAPbBr3) was deposited on TiO2 nanotubes from the solution in
dimethylformamide (DMF) by application of sCO2 at 35 °C and 200 bar for 1 h, and 3 h. FESEM
results show that TiO2 nanotubes were filled with perovskite material in both cases. The diffuse
reflectance spectroscopy measurement of samples proved that the absorption edge of prepared
TiO2 nanotubes/MAPbBr3 was extended to the visible range. Measurement of I-V characteristics
showed that the sample made for 3 h had a higher value of current than the sample prepared for 1
h. The application of sCO2 during the deposition of perovskite has enabled the preparation of a
photodiode with a better contact between TiO2 nanotubes and perovskite which is important for
the future development of solar cells.",
publisher = "Materials Research Society of Serbia",
journal = "23th Annual Conference YUCOMAT 2022 and 12th WRTCS",
title = "Supercritical CO2 assisted deposition of MAPbBr3 perovskite onto TiO2 nanotubes",
pages = "73",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6170"
}

Stefanović, M., Lukić, I., Vujančević, J., Petrović, R.,& Janaćković, Đ.. (2022). Supercritical CO2 assisted deposition of MAPbBr3 perovskite onto TiO2 nanotubes. in 23th Annual Conference YUCOMAT 2022 and 12th WRTCS
Materials Research Society of Serbia., 73.
https://hdl.handle.net/21.15107/rcub_technorep_6170

Stefanović M, Lukić I, Vujančević J, Petrović R, Janaćković Đ. Supercritical CO2 assisted deposition of MAPbBr3 perovskite onto TiO2 nanotubes. in 23th Annual Conference YUCOMAT 2022 and 12th WRTCS. 2022;:73.
https://hdl.handle.net/21.15107/rcub_technorep_6170 .

Stefanović, Milica, Lukić, Ivana, Vujančević, Jelena, Petrović, Rada, Janaćković, Đorđe, "Supercritical CO2 assisted deposition of MAPbBr3 perovskite onto TiO2 nanotubes" in 23th Annual Conference YUCOMAT 2022 and 12th WRTCS (2022):73,
https://hdl.handle.net/21.15107/rcub_technorep_6170 .

TY  - CONF
AU  - Stefanović, Milica
AU  - Lukić, Ivana
AU  - Vujančević, Jelena
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6172
PB  - Serbian Academy of Sciences and Arts
C3  - Second International conference ELMINA2022 Electron Microscopy of Nanostructures
T1  - Improving the contact surface between TiO2 nanotubes and MAPbBr3 to make perovskite solar cells
EP  - 190
SP  - 189
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6172
ER  - 

@conference{
author = "Stefanović, Milica and Lukić, Ivana and Vujančević, Jelena and Petrović, Rada and Janaćković, Đorđe",
year = "2022",
publisher = "Serbian Academy of Sciences and Arts",
journal = "Second International conference ELMINA2022 Electron Microscopy of Nanostructures",
title = "Improving the contact surface between TiO2 nanotubes and MAPbBr3 to make perovskite solar cells",
pages = "190-189",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6172"
}

Stefanović, M., Lukić, I., Vujančević, J., Petrović, R.,& Janaćković, Đ.. (2022). Improving the contact surface between TiO2 nanotubes and MAPbBr3 to make perovskite solar cells. in Second International conference ELMINA2022 Electron Microscopy of Nanostructures
Serbian Academy of Sciences and Arts., 189-190.
https://hdl.handle.net/21.15107/rcub_technorep_6172

Stefanović M, Lukić I, Vujančević J, Petrović R, Janaćković Đ. Improving the contact surface between TiO2 nanotubes and MAPbBr3 to make perovskite solar cells. in Second International conference ELMINA2022 Electron Microscopy of Nanostructures. 2022;:189-190.
https://hdl.handle.net/21.15107/rcub_technorep_6172 .

Stefanović, Milica, Lukić, Ivana, Vujančević, Jelena, Petrović, Rada, Janaćković, Đorđe, "Improving the contact surface between TiO2 nanotubes and MAPbBr3 to make perovskite solar cells" in Second International conference ELMINA2022 Electron Microscopy of Nanostructures (2022):189-190,
https://hdl.handle.net/21.15107/rcub_technorep_6172 .

TY  - CONF
AU  - Stefanović, Milica
AU  - Jovančićević, Branimir
AU  - Tosti, Tomislav
AU  - Dojčinović, Biljana
AU  - Antić, Nevena
AU  - Gallart, Francesc
AU  - Moreno de las Heras, Mariano
AU  - Kašanin-Grubin, Milica
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6169
C3  - EGU General Assembly 2022
T1  - The influence of mineralogical composition on degradation of badland materials under different climate conditions
DO  - 10.5194/egusphere-egu22-6290
ER  - 

@conference{
author = "Stefanović, Milica and Jovančićević, Branimir and Tosti, Tomislav and Dojčinović, Biljana and Antić, Nevena and Gallart, Francesc and Moreno de las Heras, Mariano and Kašanin-Grubin, Milica",
year = "2022",
journal = "EGU General Assembly 2022",
title = "The influence of mineralogical composition on degradation of badland materials under different climate conditions",
doi = "10.5194/egusphere-egu22-6290"
}

Stefanović, M., Jovančićević, B., Tosti, T., Dojčinović, B., Antić, N., Gallart, F., Moreno de las Heras, M.,& Kašanin-Grubin, M.. (2022). The influence of mineralogical composition on degradation of badland materials under different climate conditions. in EGU General Assembly 2022.
https://doi.org/10.5194/egusphere-egu22-6290

Stefanović M, Jovančićević B, Tosti T, Dojčinović B, Antić N, Gallart F, Moreno de las Heras M, Kašanin-Grubin M. The influence of mineralogical composition on degradation of badland materials under different climate conditions. in EGU General Assembly 2022. 2022;.
doi:10.5194/egusphere-egu22-6290 .

Stefanović, Milica, Jovančićević, Branimir, Tosti, Tomislav, Dojčinović, Biljana, Antić, Nevena, Gallart, Francesc, Moreno de las Heras, Mariano, Kašanin-Grubin, Milica, "The influence of mineralogical composition on degradation of badland materials under different climate conditions" in EGU General Assembly 2022 (2022),
https://doi.org/10.5194/egusphere-egu22-6290 . .

TY  - JOUR
AU  - Stefanović, Milica P.
AU  - Vujančević, Jelena D.
AU  - Petrović, Rada P.
AU  - Stevanović, Marija S.
AU  - Janaćković, Đorđe T.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5274
AB  - Organsko-neorganski perovskiti su privukli veliku pažnju istraživača zbog visoke apsorpcije u vidljivom
delu spektra i jeftine proizvodnje. Apsorbovanjem svetlosti dolazi do stvaranja para elektron-šupljina.
U cilju razdvajanja nosilaca naelektrisanja, perovskit se kombinuje sa TiO2 što ima za posledicu
spontani prelazak elektrona sa perovskita na TiO2. Ovo istraživanje je imalo za cilj povećanje dodirne
površine između nanocevi TiO2 i perovskita punjenjem nanocevi perovskitnim materijalom. Rastvor
metilamonijum olovo(II)-bromidnog perovskita (CH3NH3PbBr3) u dimetilformamidu (DMF) je
deponovan na anodizacijom sintetisane TiO2 nanocevi pomoću sistema visokog vakuuma i inertnog
gasa. Postupak je uključivao degazaciju uzorka u visokom vakuumu u trajanju od 3 h na 200 °C, hlađenje
uzorka, a zatim nanošenje rastvora CH3NH3PbBr3 u DMF-u, uz naknadni tretman inertnim gasom (N2)
u cilju ostvarenja natpritiska, što je omogućilo punjenje nanocevi perovskitnim materijalom. Difuznorefleksiona spektroskopija pokazala je da taloženje CH3NH3PbBr3 poboljšava apsorpciona svojstva
TiO2 nanocevi. I-V karakteristike uzorka pokazale su fotodiodno ponašanje i histerezisnu krivu, koja je
karakteristična za perovskitni materijal. Vrednost struje uzorka snimljenim pod vidljivom svetlošću
iznosila je 46 μA bez primene prednapona, dok je nakon primene prednapona iznosila 76 μA. Rezultati
rada ukazuju da je napravljena perovskitna fotodioda sa povećanim kontaktom između TiO2 i perovskita,
koja predstavlja osnovu za buduću konstrukciju solarnih ćelija.
AB  - Organic-inorganic perovskites have attracted much attention from researchers due to their high absorption in the visible part of the spectrum and low-cost fabrication. After absorption of the light, electron-hole pairs are formed. To separate electron-hole pairs and reduce recombination, perovskite is combined with TiO2 which has as a consequence, a spontaneous transition of electrons from perovskite to TiO2. This research aims to increase the contact surface of perovskite and TiO2 nanotubes by filling the nanotubes with perovskite material. The solution of methylammonium lead bromide perovskite (CH3NH3PbBr3) in dimethylformamide (DMF) was deposited on anodically synthesized TiO2 nanotubes by the high vacuum system and inert gas. The procedure involved degassation of the sample under high vacuum for 3 h at 200 °C, cooling of the sample, and putting the solution of CH3NH3PbBr3 in DMF, after which it was treated with inert gas (N2), as an overpressure which enabled the filling of the nanotubes with perovskite material. The diffuse reflectance spectroscopy measurement of the sample proved that deposition of CH3NH3PbBr3 improves the absorption properties of TiO2 nanotubes. The I-V characteristics of the sample showed photodiode behavior and characteristic hysteresis curve for perovskite material. The value of current under visible light for the sample without preconditioning was 46 mA, while after preconditioning value of current was 76 mA. The results indicate that a perovskite photodiode with increased contact between TiO2 and perovskite was made, which is the basis for future solar cell construction.
PB  - Savez inženjera i tehničara Srbije
T2  - Tehnika
T1  - Poboljšanje apsorpcionih svojstava TiO2 nanocevi pomoću CH3NH3PbBr3 perovskita kao fotosenzitivizatora
T1  - Improvement of absorption properties of TiO2 nanotubes by using CH3NH3PbBr3 perovskite as photosensitizer
EP  - 21
IS  - 1
SP  - 15
VL  - 31
DO  - 10.5937/tehnika2201015S
ER  - 

@article{
author = "Stefanović, Milica P. and Vujančević, Jelena D. and Petrović, Rada P. and Stevanović, Marija S. and Janaćković, Đorđe T.",
year = "2022",
abstract = "Organsko-neorganski perovskiti su privukli veliku pažnju istraživača zbog visoke apsorpcije u vidljivom
delu spektra i jeftine proizvodnje. Apsorbovanjem svetlosti dolazi do stvaranja para elektron-šupljina.
U cilju razdvajanja nosilaca naelektrisanja, perovskit se kombinuje sa TiO2 što ima za posledicu
spontani prelazak elektrona sa perovskita na TiO2. Ovo istraživanje je imalo za cilj povećanje dodirne
površine između nanocevi TiO2 i perovskita punjenjem nanocevi perovskitnim materijalom. Rastvor
metilamonijum olovo(II)-bromidnog perovskita (CH3NH3PbBr3) u dimetilformamidu (DMF) je
deponovan na anodizacijom sintetisane TiO2 nanocevi pomoću sistema visokog vakuuma i inertnog
gasa. Postupak je uključivao degazaciju uzorka u visokom vakuumu u trajanju od 3 h na 200 °C, hlađenje
uzorka, a zatim nanošenje rastvora CH3NH3PbBr3 u DMF-u, uz naknadni tretman inertnim gasom (N2)
u cilju ostvarenja natpritiska, što je omogućilo punjenje nanocevi perovskitnim materijalom. Difuznorefleksiona spektroskopija pokazala je da taloženje CH3NH3PbBr3 poboljšava apsorpciona svojstva
TiO2 nanocevi. I-V karakteristike uzorka pokazale su fotodiodno ponašanje i histerezisnu krivu, koja je
karakteristična za perovskitni materijal. Vrednost struje uzorka snimljenim pod vidljivom svetlošću
iznosila je 46 μA bez primene prednapona, dok je nakon primene prednapona iznosila 76 μA. Rezultati
rada ukazuju da je napravljena perovskitna fotodioda sa povećanim kontaktom između TiO2 i perovskita,
koja predstavlja osnovu za buduću konstrukciju solarnih ćelija., Organic-inorganic perovskites have attracted much attention from researchers due to their high absorption in the visible part of the spectrum and low-cost fabrication. After absorption of the light, electron-hole pairs are formed. To separate electron-hole pairs and reduce recombination, perovskite is combined with TiO2 which has as a consequence, a spontaneous transition of electrons from perovskite to TiO2. This research aims to increase the contact surface of perovskite and TiO2 nanotubes by filling the nanotubes with perovskite material. The solution of methylammonium lead bromide perovskite (CH3NH3PbBr3) in dimethylformamide (DMF) was deposited on anodically synthesized TiO2 nanotubes by the high vacuum system and inert gas. The procedure involved degassation of the sample under high vacuum for 3 h at 200 °C, cooling of the sample, and putting the solution of CH3NH3PbBr3 in DMF, after which it was treated with inert gas (N2), as an overpressure which enabled the filling of the nanotubes with perovskite material. The diffuse reflectance spectroscopy measurement of the sample proved that deposition of CH3NH3PbBr3 improves the absorption properties of TiO2 nanotubes. The I-V characteristics of the sample showed photodiode behavior and characteristic hysteresis curve for perovskite material. The value of current under visible light for the sample without preconditioning was 46 mA, while after preconditioning value of current was 76 mA. The results indicate that a perovskite photodiode with increased contact between TiO2 and perovskite was made, which is the basis for future solar cell construction.",
publisher = "Savez inženjera i tehničara Srbije",
journal = "Tehnika",
title = "Poboljšanje apsorpcionih svojstava TiO2 nanocevi pomoću CH3NH3PbBr3 perovskita kao fotosenzitivizatora, Improvement of absorption properties of TiO2 nanotubes by using CH3NH3PbBr3 perovskite as photosensitizer",
pages = "21-15",
number = "1",
volume = "31",
doi = "10.5937/tehnika2201015S"
}

Stefanović, M. P., Vujančević, J. D., Petrović, R. P., Stevanović, M. S.,& Janaćković, Đ. T.. (2022). Poboljšanje apsorpcionih svojstava TiO2 nanocevi pomoću CH3NH3PbBr3 perovskita kao fotosenzitivizatora. in Tehnika
Savez inženjera i tehničara Srbije., 31(1), 15-21.
https://doi.org/10.5937/tehnika2201015S

Stefanović MP, Vujančević JD, Petrović RP, Stevanović MS, Janaćković ĐT. Poboljšanje apsorpcionih svojstava TiO2 nanocevi pomoću CH3NH3PbBr3 perovskita kao fotosenzitivizatora. in Tehnika. 2022;31(1):15-21.
doi:10.5937/tehnika2201015S .

Stefanović, Milica P., Vujančević, Jelena D., Petrović, Rada P., Stevanović, Marija S., Janaćković, Đorđe T., "Poboljšanje apsorpcionih svojstava TiO2 nanocevi pomoću CH3NH3PbBr3 perovskita kao fotosenzitivizatora" in Tehnika, 31, no. 1 (2022):15-21,
https://doi.org/10.5937/tehnika2201015S . .

TY  - CONF
AU  - Antić, Nevena
AU  - Stefanović, Milica
AU  - Štrbac, Snežana
AU  - Stojadinović, Sanja
AU  - Tosti, Tomislav
AU  - Kašanin-Grubin, Milica
AU  - Jovančićević, Branimir
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6171
PB  - University of Ljubljana Press
C3  - 22nd European Meeting on Environmental Chemistry 2022
T1  - Role of Mineralogical Composition and Physico-chemical Properties of Sediment on Badlands Classification
SP  - 34
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6171
ER  - 

@conference{
author = "Antić, Nevena and Stefanović, Milica and Štrbac, Snežana and Stojadinović, Sanja and Tosti, Tomislav and Kašanin-Grubin, Milica and Jovančićević, Branimir",
year = "2022",
publisher = "University of Ljubljana Press",
journal = "22nd European Meeting on Environmental Chemistry 2022",
title = "Role of Mineralogical Composition and Physico-chemical Properties of Sediment on Badlands Classification",
pages = "34",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6171"
}

Antić, N., Stefanović, M., Štrbac, S., Stojadinović, S., Tosti, T., Kašanin-Grubin, M.,& Jovančićević, B.. (2022). Role of Mineralogical Composition and Physico-chemical Properties of Sediment on Badlands Classification. in 22nd European Meeting on Environmental Chemistry 2022
University of Ljubljana Press., 34.
https://hdl.handle.net/21.15107/rcub_technorep_6171

Antić N, Stefanović M, Štrbac S, Stojadinović S, Tosti T, Kašanin-Grubin M, Jovančićević B. Role of Mineralogical Composition and Physico-chemical Properties of Sediment on Badlands Classification. in 22nd European Meeting on Environmental Chemistry 2022. 2022;:34.
https://hdl.handle.net/21.15107/rcub_technorep_6171 .

Antić, Nevena, Stefanović, Milica, Štrbac, Snežana, Stojadinović, Sanja, Tosti, Tomislav, Kašanin-Grubin, Milica, Jovančićević, Branimir, "Role of Mineralogical Composition and Physico-chemical Properties of Sediment on Badlands Classification" in 22nd European Meeting on Environmental Chemistry 2022 (2022):34,
https://hdl.handle.net/21.15107/rcub_technorep_6171 .

TY  - CONF
AU  - Kašanin-Grubin, Milica
AU  - Antić, Nevena
AU  - Stefanović, Milica
AU  - Avciouğlu, Aydogan
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6168
C3  - EGU General Assembly 2022
T1  - Weathering experiments on badland materials – advantages and obstacles
DO  - 10.5194/egusphere-egu22-9429
ER  - 

@conference{
author = "Kašanin-Grubin, Milica and Antić, Nevena and Stefanović, Milica and Avciouğlu, Aydogan",
year = "2022",
journal = "EGU General Assembly 2022",
title = "Weathering experiments on badland materials – advantages and obstacles",
doi = "10.5194/egusphere-egu22-9429"
}

Kašanin-Grubin, M., Antić, N., Stefanović, M.,& Avciouğlu, A.. (2022). Weathering experiments on badland materials – advantages and obstacles. in EGU General Assembly 2022.
https://doi.org/10.5194/egusphere-egu22-9429

Kašanin-Grubin M, Antić N, Stefanović M, Avciouğlu A. Weathering experiments on badland materials – advantages and obstacles. in EGU General Assembly 2022. 2022;.
doi:10.5194/egusphere-egu22-9429 .

Kašanin-Grubin, Milica, Antić, Nevena, Stefanović, Milica, Avciouğlu, Aydogan, "Weathering experiments on badland materials – advantages and obstacles" in EGU General Assembly 2022 (2022),
https://doi.org/10.5194/egusphere-egu22-9429 . .

TY  - CONF
AU  - Antić, Nevena
AU  - Stefanović, Milica
AU  - Mijatović, Nevenka
AU  - Tosti, Tomislav
AU  - Xie, Chunxia
AU  - Kašanin-Grubin, Milica
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6167
C3  - EGU General Assembly 2022
T1  - Is snow more distructive agent than rain from the perspetive of land degradation
DO  - 10.5194/egusphere-egu22-577
ER  - 

@conference{
author = "Antić, Nevena and Stefanović, Milica and Mijatović, Nevenka and Tosti, Tomislav and Xie, Chunxia and Kašanin-Grubin, Milica",
year = "2022",
journal = "EGU General Assembly 2022",
title = "Is snow more distructive agent than rain from the perspetive of land degradation",
doi = "10.5194/egusphere-egu22-577"
}

Antić, N., Stefanović, M., Mijatović, N., Tosti, T., Xie, C.,& Kašanin-Grubin, M.. (2022). Is snow more distructive agent than rain from the perspetive of land degradation. in EGU General Assembly 2022.
https://doi.org/10.5194/egusphere-egu22-577

Antić N, Stefanović M, Mijatović N, Tosti T, Xie C, Kašanin-Grubin M. Is snow more distructive agent than rain from the perspetive of land degradation. in EGU General Assembly 2022. 2022;.
doi:10.5194/egusphere-egu22-577 .

Antić, Nevena, Stefanović, Milica, Mijatović, Nevenka, Tosti, Tomislav, Xie, Chunxia, Kašanin-Grubin, Milica, "Is snow more distructive agent than rain from the perspetive of land degradation" in EGU General Assembly 2022 (2022),
https://doi.org/10.5194/egusphere-egu22-577 . .

TY  - CONF
AU  - Stefanović, Milica
AU  - Vujančević, Jelena
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6110
AB  - The organo-inorganic perovskites are materials that have recently revolutionized the field of photovoltaics due to their low-cost fabrication and high optical absorption. The hybrid organo-inorganic perovskite absorbs the visible part of the spectrum resulting in the creation of electron-hole pair. To decrease the recombination of charge carriers, the construction of solar cells requires the existence of separate layers for holes and for electrons. TiO2 is usually used as an electron transport layer because its conduction band (CB) lies under the CB of perovskite. In that way, electrons diffuse from CB of perovskite to CB of TiO2. For these experiments, TiO2 nanotubular structure was used as an electron transport layer due to its advantages compared to nanoparticular TiO2. TiO2 nanotubes can provide a one-dimensional transmission channel for the charge carriers, so it will reduce the recombination rate of the carriers and provide a channel for fast carrier transport. However, there is a problem with the contact surface between perovskite and TiO2 nanotubes. The aim of this study is to increase the contact surface of perovskite and TiO2 nanotubes by filling the nanotubes with perovskite material in order to improve electron transport. Methylammonium lead bromide perovskite (MAPbBr3) was deposited on anodically synthesized TiO2 nanotubes which were annealed at 450 °C for 1 h. After degassation of the sample under high vacuum for 3 h at 200 °C, the cooled sample was put in a solution of MAPbBr3 in dimethylformamide (DMF) and it was treated with inert gas (N2), which enabled the filling of the nanotubes with perovskite material to some extent. FESEM and XRD analyses were used for morphological and chemical characterization of the sample. The diffuse reflectance spectroscopy measurement of the sample proved that deposition of MAPbBr3 improves the absorption properties of TiO2 nanotubes. By measuring the I-V characteristics of the sample in the dark and under visible light, a hysteresis curve was obtained.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and the Book of Abstracts, 22nd Annual Conference YUCOMAT 2021
T1  - Synthesis and deposition of MAPbBr3 perovskite on titania nanotube arrays
SP  - 111
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6110
ER  - 

@conference{
author = "Stefanović, Milica and Vujančević, Jelena and Petrović, Rada and Janaćković, Đorđe",
year = "2021",
abstract = "The organo-inorganic perovskites are materials that have recently revolutionized the field of photovoltaics due to their low-cost fabrication and high optical absorption. The hybrid organo-inorganic perovskite absorbs the visible part of the spectrum resulting in the creation of electron-hole pair. To decrease the recombination of charge carriers, the construction of solar cells requires the existence of separate layers for holes and for electrons. TiO2 is usually used as an electron transport layer because its conduction band (CB) lies under the CB of perovskite. In that way, electrons diffuse from CB of perovskite to CB of TiO2. For these experiments, TiO2 nanotubular structure was used as an electron transport layer due to its advantages compared to nanoparticular TiO2. TiO2 nanotubes can provide a one-dimensional transmission channel for the charge carriers, so it will reduce the recombination rate of the carriers and provide a channel for fast carrier transport. However, there is a problem with the contact surface between perovskite and TiO2 nanotubes. The aim of this study is to increase the contact surface of perovskite and TiO2 nanotubes by filling the nanotubes with perovskite material in order to improve electron transport. Methylammonium lead bromide perovskite (MAPbBr3) was deposited on anodically synthesized TiO2 nanotubes which were annealed at 450 °C for 1 h. After degassation of the sample under high vacuum for 3 h at 200 °C, the cooled sample was put in a solution of MAPbBr3 in dimethylformamide (DMF) and it was treated with inert gas (N2), which enabled the filling of the nanotubes with perovskite material to some extent. FESEM and XRD analyses were used for morphological and chemical characterization of the sample. The diffuse reflectance spectroscopy measurement of the sample proved that deposition of MAPbBr3 improves the absorption properties of TiO2 nanotubes. By measuring the I-V characteristics of the sample in the dark and under visible light, a hysteresis curve was obtained.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and the Book of Abstracts, 22nd Annual Conference YUCOMAT 2021",
title = "Synthesis and deposition of MAPbBr3 perovskite on titania nanotube arrays",
pages = "111",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6110"
}

Stefanović, M., Vujančević, J., Petrović, R.,& Janaćković, Đ.. (2021). Synthesis and deposition of MAPbBr3 perovskite on titania nanotube arrays. in Programme and the Book of Abstracts, 22nd Annual Conference YUCOMAT 2021
Belgrade : Materials Research Society of Serbia., 111.
https://hdl.handle.net/21.15107/rcub_technorep_6110

Stefanović M, Vujančević J, Petrović R, Janaćković Đ. Synthesis and deposition of MAPbBr3 perovskite on titania nanotube arrays. in Programme and the Book of Abstracts, 22nd Annual Conference YUCOMAT 2021. 2021;:111.
https://hdl.handle.net/21.15107/rcub_technorep_6110 .

Stefanović, Milica, Vujančević, Jelena, Petrović, Rada, Janaćković, Đorđe, "Synthesis and deposition of MAPbBr3 perovskite on titania nanotube arrays" in Programme and the Book of Abstracts, 22nd Annual Conference YUCOMAT 2021 (2021):111,
https://hdl.handle.net/21.15107/rcub_technorep_6110 .

TY  - CONF
AU  - Stefanović, Milica
AU  - Petrović, Rada
AU  - Lukić, Ivana
AU  - Janaćković, Đorđe
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6163
AB  - Organo-inorganic perovskites have attracted much attention of researchers due to their low-cost fabrication and high optical absorption. When perovskite materials were applied for the first time in solar cells (2006), power conversion efficiency (PCE) was 2.2 %. Up to now, PCE is over 25.5 %. Despite the conveniences that perovskites have, there are problems regarding the stability of the material and the recombination of charge carriers. To decrease charge carriers recombination, perovskite methylammonium lead bromide (MAPbBr3) was coupled with TiO2 nanotube arrays which were synthesized by anodisation of Ti foil and annealed at 450 °C for 1 h. The inner diameter of the nanotubes was ~ 103 ± 17 nm while the length was ~ 350 nm. The solution of MAPbBr3 in dimethylformamide (DMF) was deposited on TiO2 nanotubes by supercritical carbon dioxide at different pressures and temperatures. The supercritical CO2 has the role of a cosolvent that would help to fill the nanotubes with perovskite material. It has been observed that supercritical CO2 improves the filling of nanotubes by the perovskite. Morphological and chemical characterization of samples was carried out by FESEM and XRD analysis. The diffuse reflectance spectroscopy measurement of samples proved that the absorption edge of prepared TiO2 nanotubes/MAPbBr3 was extended to the visible range. By measuring the I-V characteristics of these samples in the dark and under visible light, a hysteresis curve was obtained with values of current in the range of 40 to 600 μA.
PB  - Faculty of Technology, University of Novi Sad
C3  - 14th ECERS Conference for Young Scientists in Ceramics 2021
T1  - Deposition of methylammonium lead bromide perovskite on titania nanotube arrays assisted by supercritical carbon dioxide
SP  - 75
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6163
ER  - 

@conference{
author = "Stefanović, Milica and Petrović, Rada and Lukić, Ivana and Janaćković, Đorđe",
year = "2021",
abstract = "Organo-inorganic perovskites have attracted much attention of researchers due to their low-cost fabrication and high optical absorption. When perovskite materials were applied for the first time in solar cells (2006), power conversion efficiency (PCE) was 2.2 %. Up to now, PCE is over 25.5 %. Despite the conveniences that perovskites have, there are problems regarding the stability of the material and the recombination of charge carriers. To decrease charge carriers recombination, perovskite methylammonium lead bromide (MAPbBr3) was coupled with TiO2 nanotube arrays which were synthesized by anodisation of Ti foil and annealed at 450 °C for 1 h. The inner diameter of the nanotubes was ~ 103 ± 17 nm while the length was ~ 350 nm. The solution of MAPbBr3 in dimethylformamide (DMF) was deposited on TiO2 nanotubes by supercritical carbon dioxide at different pressures and temperatures. The supercritical CO2 has the role of a cosolvent that would help to fill the nanotubes with perovskite material. It has been observed that supercritical CO2 improves the filling of nanotubes by the perovskite. Morphological and chemical characterization of samples was carried out by FESEM and XRD analysis. The diffuse reflectance spectroscopy measurement of samples proved that the absorption edge of prepared TiO2 nanotubes/MAPbBr3 was extended to the visible range. By measuring the I-V characteristics of these samples in the dark and under visible light, a hysteresis curve was obtained with values of current in the range of 40 to 600 μA.",
publisher = "Faculty of Technology, University of Novi Sad",
journal = "14th ECERS Conference for Young Scientists in Ceramics 2021",
title = "Deposition of methylammonium lead bromide perovskite on titania nanotube arrays assisted by supercritical carbon dioxide",
pages = "75",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6163"
}

Stefanović, M., Petrović, R., Lukić, I.,& Janaćković, Đ.. (2021). Deposition of methylammonium lead bromide perovskite on titania nanotube arrays assisted by supercritical carbon dioxide. in 14th ECERS Conference for Young Scientists in Ceramics 2021
Faculty of Technology, University of Novi Sad., 75.
https://hdl.handle.net/21.15107/rcub_technorep_6163

Stefanović M, Petrović R, Lukić I, Janaćković Đ. Deposition of methylammonium lead bromide perovskite on titania nanotube arrays assisted by supercritical carbon dioxide. in 14th ECERS Conference for Young Scientists in Ceramics 2021. 2021;:75.
https://hdl.handle.net/21.15107/rcub_technorep_6163 .

Stefanović, Milica, Petrović, Rada, Lukić, Ivana, Janaćković, Đorđe, "Deposition of methylammonium lead bromide perovskite on titania nanotube arrays assisted by supercritical carbon dioxide" in 14th ECERS Conference for Young Scientists in Ceramics 2021 (2021):75,
https://hdl.handle.net/21.15107/rcub_technorep_6163 .

TY  - CONF
AU  - Stefanović, Milica
AU  - Petrović, Rada
AU  - Lukić, Ivana
AU  - Vujančević, Jelena
AU  - Janaćković, Đorđe
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6166
PB  - Institute of Technical Sciences of SASA
C3  - 19th Young Researchers’ Conference Materials Science And Engineering 2021
T1  - Application of supercritical carbon dioxide for making perovskite photodiode
SP  - 70
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6166
ER  - 

@conference{
author = "Stefanović, Milica and Petrović, Rada and Lukić, Ivana and Vujančević, Jelena and Janaćković, Đorđe",
year = "2021",
publisher = "Institute of Technical Sciences of SASA",
journal = "19th Young Researchers’ Conference Materials Science And Engineering 2021",
title = "Application of supercritical carbon dioxide for making perovskite photodiode",
pages = "70",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6166"
}

Stefanović, M., Petrović, R., Lukić, I., Vujančević, J.,& Janaćković, Đ.. (2021). Application of supercritical carbon dioxide for making perovskite photodiode. in 19th Young Researchers’ Conference Materials Science And Engineering 2021
Institute of Technical Sciences of SASA., 70.
https://hdl.handle.net/21.15107/rcub_technorep_6166

Stefanović M, Petrović R, Lukić I, Vujančević J, Janaćković Đ. Application of supercritical carbon dioxide for making perovskite photodiode. in 19th Young Researchers’ Conference Materials Science And Engineering 2021. 2021;:70.
https://hdl.handle.net/21.15107/rcub_technorep_6166 .

Stefanović, Milica, Petrović, Rada, Lukić, Ivana, Vujančević, Jelena, Janaćković, Đorđe, "Application of supercritical carbon dioxide for making perovskite photodiode" in 19th Young Researchers’ Conference Materials Science And Engineering 2021 (2021):70,
https://hdl.handle.net/21.15107/rcub_technorep_6166 .

TY  - CONF
AU  - Antić, Nevena
AU  - Stefanović, Milica
AU  - Mijatović, Nevenka
AU  - Kašanin-Grubin, Milica
AU  - Veselinović, Gorica
AU  - Stojadinović, Sanja
AU  - Jovančićević, Branimir
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6165
PB  - Serbian Chemical Society
C3  - EMEC 21st European Meeting on Environmental Chemistry 2021
T1  - Anthropogenic and Climate Influence on Land Degradation
SP  - 141
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6165
ER  - 

@conference{
author = "Antić, Nevena and Stefanović, Milica and Mijatović, Nevenka and Kašanin-Grubin, Milica and Veselinović, Gorica and Stojadinović, Sanja and Jovančićević, Branimir",
year = "2021",
publisher = "Serbian Chemical Society",
journal = "EMEC 21st European Meeting on Environmental Chemistry 2021",
title = "Anthropogenic and Climate Influence on Land Degradation",
pages = "141",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6165"
}

Antić, N., Stefanović, M., Mijatović, N., Kašanin-Grubin, M., Veselinović, G., Stojadinović, S.,& Jovančićević, B.. (2021). Anthropogenic and Climate Influence on Land Degradation. in EMEC 21st European Meeting on Environmental Chemistry 2021
Serbian Chemical Society., 141.
https://hdl.handle.net/21.15107/rcub_technorep_6165

Antić N, Stefanović M, Mijatović N, Kašanin-Grubin M, Veselinović G, Stojadinović S, Jovančićević B. Anthropogenic and Climate Influence on Land Degradation. in EMEC 21st European Meeting on Environmental Chemistry 2021. 2021;:141.
https://hdl.handle.net/21.15107/rcub_technorep_6165 .

Antić, Nevena, Stefanović, Milica, Mijatović, Nevenka, Kašanin-Grubin, Milica, Veselinović, Gorica, Stojadinović, Sanja, Jovančićević, Branimir, "Anthropogenic and Climate Influence on Land Degradation" in EMEC 21st European Meeting on Environmental Chemistry 2021 (2021):141,
https://hdl.handle.net/21.15107/rcub_technorep_6165 .

TY  - CONF
AU  - Stefanović, Milica
AU  - Jovančićević, Branimir
AU  - Šajnović, Aleksandra
AU  - Francesc, Gallart
AU  - Mariano, Moreno-de la Heras
AU  - Antić, Nevena
AU  - Kašanin-Grubin, Milica
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6164
PB  - Serbian Chemical Society
C3  - EMEC 21st European Meeting on Environmental Chemistry 2021
T1  - The response of badland materials from Spain with different mineralogical content on seasonal changes
SP  - 52
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6164
ER  - 

@conference{
author = "Stefanović, Milica and Jovančićević, Branimir and Šajnović, Aleksandra and Francesc, Gallart and Mariano, Moreno-de la Heras and Antić, Nevena and Kašanin-Grubin, Milica",
year = "2021",
publisher = "Serbian Chemical Society",
journal = "EMEC 21st European Meeting on Environmental Chemistry 2021",
title = "The response of badland materials from Spain with different mineralogical content on seasonal changes",
pages = "52",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6164"
}

Stefanović, M., Jovančićević, B., Šajnović, A., Francesc, G., Mariano, M. l. H., Antić, N.,& Kašanin-Grubin, M.. (2021). The response of badland materials from Spain with different mineralogical content on seasonal changes. in EMEC 21st European Meeting on Environmental Chemistry 2021
Serbian Chemical Society., 52.
https://hdl.handle.net/21.15107/rcub_technorep_6164

Stefanović M, Jovančićević B, Šajnović A, Francesc G, Mariano MLH, Antić N, Kašanin-Grubin M. The response of badland materials from Spain with different mineralogical content on seasonal changes. in EMEC 21st European Meeting on Environmental Chemistry 2021. 2021;:52.
https://hdl.handle.net/21.15107/rcub_technorep_6164 .

Stefanović, Milica, Jovančićević, Branimir, Šajnović, Aleksandra, Francesc, Gallart, Mariano, Moreno-de la Heras, Antić, Nevena, Kašanin-Grubin, Milica, "The response of badland materials from Spain with different mineralogical content on seasonal changes" in EMEC 21st European Meeting on Environmental Chemistry 2021 (2021):52,
https://hdl.handle.net/21.15107/rcub_technorep_6164 .

TY  - CONF
AU  - Kašanin-Grubin, Milica
AU  - Stefanović, Milica
AU  - Jovančićević, Branimir
AU  - Šajnović, Aleksandra
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6162
AB  - Badlands are worldwide erosional landforms. The
formation of different badland morphologies is due to
the type of sedimentary bedrock, especially texture
and cementation degree, as well as climate.
In this study badlandes mudstones which have high
silt and clay contents from different locations in Italy,
Spain and Canada (Figure 1) were investigated from
organic-geochemical point of view. It is known that
vegetation is commonly identified as a significant
controlling mechanism of land degradation in
sensitive, semi-arid environments [1].
Total of 18 samples were analysed from 9 different
locations. From each location unweathered mudstone
and crust were taken. Qualitative and semiquantitative composition of the mineral part of
samples was determined using X-ray diffractometer.
Additionally, chemical properties such as pH, EC, Eh,
SAR are determined. The content of organic carbon
(Corg), was determined by elemental analysis after
removal of carbonates with diluted hydrochloric acid
(1:3, v/v). Soluble organic matter, bitumen, was
extracted from sediments using the Soxhlet extraction
with an azeotrope mixture of dichloromethan and
methanol (88:12, volume %). Isolation of the
saturated and aromatic fraction was done using
column chromatography. Organic compound were
analyzed by gas chromatography-mass spectrometry
(GC-MS) technique in the fractions of saturated
hydrocarbons.
Many study has shown that clay mineralogy is
extremely important for the behaviour of different
materials undergone weathering/erosional processes as well as smectite-containing sediments have been
shown to be more erodable [2]. Additonally, the
presence of enough amount of organic matter, iron
and aluminum oxides causes to make marls durable
while, sodium ions cause more erosion associated
with dispersed clay particles [3].
In this study, it was observed that major changes in
the distribution of saturated hydrocarbons occurred in
samples containing smectite compared to those
samples where mentioned mineral was not identified.
This confirms that the presence of smectite is crucial
factor for changes inorganic and organic matter
during erosional processes.
Mentioned changes in distribution of saturated
hydrocarbons are most pronounced for n-alkanes,
whereby higher odd-numbered n-alkanes are most
sensitive during erosive processes. For that reason
parameters which reflect the ratio of higher and lower
n-alkanes (for example, TAR, TAR/MAR, CPI)
decrease in eroded samples compared to unweathered
mudstones.
Significant changes in distribution of polycyclic
alkanes of sterane and terpane types were not
observed.
PB  - Lodz University of Technology
C3  - 20th European Meeting on Environmental Chemistry 2019
T1  - Distribution of saturated hydrocarbons in unweathered and erosional landforms
SP  - 116
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6162
ER  - 

@conference{
author = "Kašanin-Grubin, Milica and Stefanović, Milica and Jovančićević, Branimir and Šajnović, Aleksandra",
year = "2019",
abstract = "Badlands are worldwide erosional landforms. The
formation of different badland morphologies is due to
the type of sedimentary bedrock, especially texture
and cementation degree, as well as climate.
In this study badlandes mudstones which have high
silt and clay contents from different locations in Italy,
Spain and Canada (Figure 1) were investigated from
organic-geochemical point of view. It is known that
vegetation is commonly identified as a significant
controlling mechanism of land degradation in
sensitive, semi-arid environments [1].
Total of 18 samples were analysed from 9 different
locations. From each location unweathered mudstone
and crust were taken. Qualitative and semiquantitative composition of the mineral part of
samples was determined using X-ray diffractometer.
Additionally, chemical properties such as pH, EC, Eh,
SAR are determined. The content of organic carbon
(Corg), was determined by elemental analysis after
removal of carbonates with diluted hydrochloric acid
(1:3, v/v). Soluble organic matter, bitumen, was
extracted from sediments using the Soxhlet extraction
with an azeotrope mixture of dichloromethan and
methanol (88:12, volume %). Isolation of the
saturated and aromatic fraction was done using
column chromatography. Organic compound were
analyzed by gas chromatography-mass spectrometry
(GC-MS) technique in the fractions of saturated
hydrocarbons.
Many study has shown that clay mineralogy is
extremely important for the behaviour of different
materials undergone weathering/erosional processes as well as smectite-containing sediments have been
shown to be more erodable [2]. Additonally, the
presence of enough amount of organic matter, iron
and aluminum oxides causes to make marls durable
while, sodium ions cause more erosion associated
with dispersed clay particles [3].
In this study, it was observed that major changes in
the distribution of saturated hydrocarbons occurred in
samples containing smectite compared to those
samples where mentioned mineral was not identified.
This confirms that the presence of smectite is crucial
factor for changes inorganic and organic matter
during erosional processes.
Mentioned changes in distribution of saturated
hydrocarbons are most pronounced for n-alkanes,
whereby higher odd-numbered n-alkanes are most
sensitive during erosive processes. For that reason
parameters which reflect the ratio of higher and lower
n-alkanes (for example, TAR, TAR/MAR, CPI)
decrease in eroded samples compared to unweathered
mudstones.
Significant changes in distribution of polycyclic
alkanes of sterane and terpane types were not
observed.",
publisher = "Lodz University of Technology",
journal = "20th European Meeting on Environmental Chemistry 2019",
title = "Distribution of saturated hydrocarbons in unweathered and erosional landforms",
pages = "116",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6162"
}

Kašanin-Grubin, M., Stefanović, M., Jovančićević, B.,& Šajnović, A.. (2019). Distribution of saturated hydrocarbons in unweathered and erosional landforms. in 20th European Meeting on Environmental Chemistry 2019
Lodz University of Technology., 116.
https://hdl.handle.net/21.15107/rcub_technorep_6162

Kašanin-Grubin M, Stefanović M, Jovančićević B, Šajnović A. Distribution of saturated hydrocarbons in unweathered and erosional landforms. in 20th European Meeting on Environmental Chemistry 2019. 2019;:116.
https://hdl.handle.net/21.15107/rcub_technorep_6162 .

Kašanin-Grubin, Milica, Stefanović, Milica, Jovančićević, Branimir, Šajnović, Aleksandra, "Distribution of saturated hydrocarbons in unweathered and erosional landforms" in 20th European Meeting on Environmental Chemistry 2019 (2019):116,
https://hdl.handle.net/21.15107/rcub_technorep_6162 .

TY  - CONF
AU  - Kovačević, Marija
AU  - Simić, Marija
AU  - Stefanović, Milica
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6173
PB  - Српско хемијско друштво
C3  - Knjiga izvoda sa 29. Stručno usavršavanje nastavnika hemije i 2. Konferencija metodike nastave hemije
T1  - Ispitivanje konvergentnog i divergentnog mišljenja kod učenika drugog razreda gimnazije prirodno-matematičkog smera na sadržajima iz neorganske hemije
SP  - 17
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6173
ER  - 

@conference{
author = "Kovačević, Marija and Simić, Marija and Stefanović, Milica",
year = "2018",
publisher = "Српско хемијско друштво",
journal = "Knjiga izvoda sa 29. Stručno usavršavanje nastavnika hemije i 2. Konferencija metodike nastave hemije",
title = "Ispitivanje konvergentnog i divergentnog mišljenja kod učenika drugog razreda gimnazije prirodno-matematičkog smera na sadržajima iz neorganske hemije",
pages = "17",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6173"
}

Kovačević, M., Simić, M.,& Stefanović, M.. (2018). Ispitivanje konvergentnog i divergentnog mišljenja kod učenika drugog razreda gimnazije prirodno-matematičkog smera na sadržajima iz neorganske hemije. in Knjiga izvoda sa 29. Stručno usavršavanje nastavnika hemije i 2. Konferencija metodike nastave hemije
Српско хемијско друштво., 17.
https://hdl.handle.net/21.15107/rcub_technorep_6173

Kovačević M, Simić M, Stefanović M. Ispitivanje konvergentnog i divergentnog mišljenja kod učenika drugog razreda gimnazije prirodno-matematičkog smera na sadržajima iz neorganske hemije. in Knjiga izvoda sa 29. Stručno usavršavanje nastavnika hemije i 2. Konferencija metodike nastave hemije. 2018;:17.
https://hdl.handle.net/21.15107/rcub_technorep_6173 .

Kovačević, Marija, Simić, Marija, Stefanović, Milica, "Ispitivanje konvergentnog i divergentnog mišljenja kod učenika drugog razreda gimnazije prirodno-matematičkog smera na sadržajima iz neorganske hemije" in Knjiga izvoda sa 29. Stručno usavršavanje nastavnika hemije i 2. Konferencija metodike nastave hemije (2018):17,
https://hdl.handle.net/21.15107/rcub_technorep_6173 .