BT/ZnO composite materials with improved functional properties
Аутори
Stanković, AnaFilipović, Suzana
Stojković Simatović, Ivana
Škapin, Srečo Davor
Mančić, Lidija
Marković, Smilja
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Due to a high-power conversion efficiency (PCE), perovskite solar cells (PSCs) are the most developing area of research in the past decade. Although lead−based inorganic−organic PSCs has achieved the highest PCE of 25.2%, the toxic nature of lead and poor stability of organic components strongly limits its commercialization. This problem can be overcome by developing of inorganic perovskites with a high PCE. Barium titanate (BaTiO3, BT) belongs to the perovskite crystal structure materials with remarkable dielectric, ferroelectric and ferromagnetic properties. In this research, to enhance functional properties of BT we employed functionalization with MEMO silane followed by in-situ alloying with ZnO in different BT to ZnO wt.%. Synthesized ZnO@MEMO@BT composites were tested as photo- and photo-electro catalysts under simulated sunlight irradiation. An enhanced catalytic activity of ZnO@MEMO@BT composites, compared to pure BT is probably due to the modified binding energy and an optimiz...ed band structure. In order to investigate the origin of improved catalytic efficiency, pristine BT and composites were characterized using a variety of techniques, including X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance and photoluminescence spectroscopy. The enhanced photo(electro)catalytic activity of the composite materials can be attributed to the synergetic effect of the surface defects and the ZnO/BT heterojunction particles, which enabled charge separation, thereby hindering the recombination of photogenerated carriers.
Кључне речи:
barium titanate / zinc oxide / photo(electro)catalysis / solar cellsИзвор:
Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2021,29 June - 02 July 2021, Zlatibor, Serbia, 2021, 81-81Издавач:
- Belgrade : Innovation Center of Faculty of Mechanical Engineering
Финансирање / пројекти:
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Stanković, Ana AU - Filipović, Suzana AU - Stojković Simatović, Ivana AU - Škapin, Srečo Davor AU - Mančić, Lidija AU - Marković, Smilja PY - 2021 UR - https://dais.sanu.ac.rs/123456789/12350 AB - Due to a high-power conversion efficiency (PCE), perovskite solar cells (PSCs) are the most developing area of research in the past decade. Although lead−based inorganic−organic PSCs has achieved the highest PCE of 25.2%, the toxic nature of lead and poor stability of organic components strongly limits its commercialization. This problem can be overcome by developing of inorganic perovskites with a high PCE. Barium titanate (BaTiO3, BT) belongs to the perovskite crystal structure materials with remarkable dielectric, ferroelectric and ferromagnetic properties. In this research, to enhance functional properties of BT we employed functionalization with MEMO silane followed by in-situ alloying with ZnO in different BT to ZnO wt.%. Synthesized ZnO@MEMO@BT composites were tested as photo- and photo-electro catalysts under simulated sunlight irradiation. An enhanced catalytic activity of ZnO@MEMO@BT composites, compared to pure BT is probably due to the modified binding energy and an optimized band structure. In order to investigate the origin of improved catalytic efficiency, pristine BT and composites were characterized using a variety of techniques, including X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance and photoluminescence spectroscopy. The enhanced photo(electro)catalytic activity of the composite materials can be attributed to the synergetic effect of the surface defects and the ZnO/BT heterojunction particles, which enabled charge separation, thereby hindering the recombination of photogenerated carriers. PB - Belgrade : Innovation Center of Faculty of Mechanical Engineering C3 - Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2021,29 June - 02 July 2021, Zlatibor, Serbia T1 - BT/ZnO composite materials with improved functional properties SP - 81 EP - 81 UR - https://hdl.handle.net/21.15107/rcub_dais_12350 ER -
@conference{ author = "Stanković, Ana and Filipović, Suzana and Stojković Simatović, Ivana and Škapin, Srečo Davor and Mančić, Lidija and Marković, Smilja", year = "2021", abstract = "Due to a high-power conversion efficiency (PCE), perovskite solar cells (PSCs) are the most developing area of research in the past decade. Although lead−based inorganic−organic PSCs has achieved the highest PCE of 25.2%, the toxic nature of lead and poor stability of organic components strongly limits its commercialization. This problem can be overcome by developing of inorganic perovskites with a high PCE. Barium titanate (BaTiO3, BT) belongs to the perovskite crystal structure materials with remarkable dielectric, ferroelectric and ferromagnetic properties. In this research, to enhance functional properties of BT we employed functionalization with MEMO silane followed by in-situ alloying with ZnO in different BT to ZnO wt.%. Synthesized ZnO@MEMO@BT composites were tested as photo- and photo-electro catalysts under simulated sunlight irradiation. An enhanced catalytic activity of ZnO@MEMO@BT composites, compared to pure BT is probably due to the modified binding energy and an optimized band structure. In order to investigate the origin of improved catalytic efficiency, pristine BT and composites were characterized using a variety of techniques, including X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance and photoluminescence spectroscopy. The enhanced photo(electro)catalytic activity of the composite materials can be attributed to the synergetic effect of the surface defects and the ZnO/BT heterojunction particles, which enabled charge separation, thereby hindering the recombination of photogenerated carriers.", publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering", journal = "Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2021,29 June - 02 July 2021, Zlatibor, Serbia", title = "BT/ZnO composite materials with improved functional properties", pages = "81-81", url = "https://hdl.handle.net/21.15107/rcub_dais_12350" }
Stanković, A., Filipović, S., Stojković Simatović, I., Škapin, S. D., Mančić, L.,& Marković, S.. (2021). BT/ZnO composite materials with improved functional properties. in Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2021,29 June - 02 July 2021, Zlatibor, Serbia Belgrade : Innovation Center of Faculty of Mechanical Engineering., 81-81. https://hdl.handle.net/21.15107/rcub_dais_12350
Stanković A, Filipović S, Stojković Simatović I, Škapin SD, Mančić L, Marković S. BT/ZnO composite materials with improved functional properties. in Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2021,29 June - 02 July 2021, Zlatibor, Serbia. 2021;:81-81. https://hdl.handle.net/21.15107/rcub_dais_12350 .
Stanković, Ana, Filipović, Suzana, Stojković Simatović, Ivana, Škapin, Srečo Davor, Mančić, Lidija, Marković, Smilja, "BT/ZnO composite materials with improved functional properties" in Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2021,29 June - 02 July 2021, Zlatibor, Serbia (2021):81-81, https://hdl.handle.net/21.15107/rcub_dais_12350 .