Publication:
A novel thermochemical metal halide treatment for high-performance Sb2Se3 photocathodes

Файлы
W3115211778.pdf(3.46 MB)
Дата
2021
Авторы
Polivtseva, S.
Adegite, J. O.
Kois, J.
Maricheva, J.
Mamedov, D.
Karazhanov, S. Zh.
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Научные группы
Организационные подразделения
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Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
Выпуск журнала
Аннотация
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.The fabrication of cost-effective photostable materials with optoelectronic properties suitable for commercial photoelectrochemical (PEC) water splitting represents a complex task. Herein, we present a simple route to produce Sb2Se3 that meets most of the requirements for high-performance photocathodes. Annealing of Sb2Se3 layers in a selenium-containing atmosphere persists as a necessary step for improving device parameters; however, it could complicate industrial processability. To develop a safe and scalable alternative to the selenium physical post-processing, we propose a novel SbCl3/glycerol-based thermochemical treatment for controlling anisotropy, a severe problem for Sb2Se3. Our procedure makes it possible to selectively etch antimony-rich oxyselenide presented in Sb2Se3, to obtain high-quality compact thin films with a favorable morphology, stoichiometric composition, and crystallographic orientation. The treated Sb2Se3 photoelectrode demonstrates a record photocurrent density of about 31 mA cm−2 at −248 mV against the calomel electrode and can thus offer a breakthrough option for industrial solar fuel fabrication.
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Цитирование
A novel thermochemical metal halide treatment for high-performance Sb2Se3 photocathodes / Polivtseva, S. [et al.] // Nanomaterials. - 2021. - 11. - № 1. - P. 1-14. - 10.3390/nano11010052
URI
https://www.doi.org/10.3390/nano11010052
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85098887686&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000610661200001
 https://openrepository.mephi.ru/handle/123456789/23569
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