Mihailescu, Andreea

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  • Mihailescu, Andreea (1)
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C-doped TiO2 nanotubes with pulsed laser deposited Bi2O3 films for photovoltaic application

Bjelajac, Anđelika; Petrović, Rada; Stan, George E.; Socol, Gabriel; Mihailescu, Andreea; Mihailescu, Ion N.; Veltruska, Katerina; Matolin, Vladimir; Siketic, Zdravko; Provatas, George; Jaksic, Milko; Janaćković, Đorđe

(2022)

TY  - JOUR
AU  - Bjelajac, Anđelika
AU  - Petrović, Rada
AU  - Stan, George E.
AU  - Socol, Gabriel
AU  - Mihailescu, Andreea
AU  - Mihailescu, Ion N.
AU  - Veltruska, Katerina
AU  - Matolin, Vladimir
AU  - Siketic, Zdravko
AU  - Provatas, George
AU  - Jaksic, Milko
AU  - Janaćković, Đorđe
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4996
AB  - Anodization was used to obtain a nanotubular TiO2 photoanode on F-SnO2 glass. Subsequent annealing in the CH4 atmosphere promoted the C-doping and improved the crystallinity of the TiO2 nanotubes. The pulsed laser deposition was applied to cover the nanotubes with Bi2O3, serving as a hole transport material. X-ray photoelectron spectroscopy analyses of the doped samples reveal a shift in the valence band's maximum position towards lower binding energy as compared to those observed for the undoped samples (annealed in the air). The doping positively affects the absorption by shifting the absorption edge to 567 nm. I-V measurements under illumination show that the C-doping of TiO2 increases the current density following the absorbance results. The highest open circuit voltage was reached for the samples with the 300 degrees C-deposited Bi2O3 layer, pointing to better quality of the p-n junction, hence of the contact between Bi2O3 and TiO2. This in situ annealing provided the formation of close contact between Bi2O3 and TiO2, which enabled a faster charge transport as compared to the contact obtained with no annealing or even with post annealing.
T2  - Ceramics International
T1  - C-doped TiO2 nanotubes with pulsed laser deposited Bi2O3 films for photovoltaic application
EP  - 4657
IS  - 4
SP  - 4649
VL  - 48
DO  - 10.1016/j.ceramint.2021.10.251
ER  - 
@article{
author = "Bjelajac, Anđelika and Petrović, Rada and Stan, George E. and Socol, Gabriel and Mihailescu, Andreea and Mihailescu, Ion N. and Veltruska, Katerina and Matolin, Vladimir and Siketic, Zdravko and Provatas, George and Jaksic, Milko and Janaćković, Đorđe",
year = "2022",
abstract = "Anodization was used to obtain a nanotubular TiO2 photoanode on F-SnO2 glass. Subsequent annealing in the CH4 atmosphere promoted the C-doping and improved the crystallinity of the TiO2 nanotubes. The pulsed laser deposition was applied to cover the nanotubes with Bi2O3, serving as a hole transport material. X-ray photoelectron spectroscopy analyses of the doped samples reveal a shift in the valence band's maximum position towards lower binding energy as compared to those observed for the undoped samples (annealed in the air). The doping positively affects the absorption by shifting the absorption edge to 567 nm. I-V measurements under illumination show that the C-doping of TiO2 increases the current density following the absorbance results. The highest open circuit voltage was reached for the samples with the 300 degrees C-deposited Bi2O3 layer, pointing to better quality of the p-n junction, hence of the contact between Bi2O3 and TiO2. This in situ annealing provided the formation of close contact between Bi2O3 and TiO2, which enabled a faster charge transport as compared to the contact obtained with no annealing or even with post annealing.",
journal = "Ceramics International",
title = "C-doped TiO2 nanotubes with pulsed laser deposited Bi2O3 films for photovoltaic application",
pages = "4657-4649",
number = "4",
volume = "48",
doi = "10.1016/j.ceramint.2021.10.251"
}
Bjelajac, A., Petrović, R., Stan, G. E., Socol, G., Mihailescu, A., Mihailescu, I. N., Veltruska, K., Matolin, V., Siketic, Z., Provatas, G., Jaksic, M.,& Janaćković, Đ.. (2022). C-doped TiO2 nanotubes with pulsed laser deposited Bi2O3 films for photovoltaic application. in Ceramics International, 48(4), 4649-4657.
https://doi.org/10.1016/j.ceramint.2021.10.251
Bjelajac A, Petrović R, Stan GE, Socol G, Mihailescu A, Mihailescu IN, Veltruska K, Matolin V, Siketic Z, Provatas G, Jaksic M, Janaćković Đ. C-doped TiO2 nanotubes with pulsed laser deposited Bi2O3 films for photovoltaic application. in Ceramics International. 2022;48(4):4649-4657.
doi:10.1016/j.ceramint.2021.10.251 .
Bjelajac, Anđelika, Petrović, Rada, Stan, George E., Socol, Gabriel, Mihailescu, Andreea, Mihailescu, Ion N., Veltruska, Katerina, Matolin, Vladimir, Siketic, Zdravko, Provatas, George, Jaksic, Milko, Janaćković, Đorđe, "C-doped TiO2 nanotubes with pulsed laser deposited Bi2O3 films for photovoltaic application" in Ceramics International, 48, no. 4 (2022):4649-4657,
https://doi.org/10.1016/j.ceramint.2021.10.251 . .
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