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Getting to the Heart of the Matter: Control over the Photolysis of PbI2 Through Partial Lead Substitutionстатья
- Авторы: Ustinova Marina I., Shilov Gennadii V., Troshin Pavel A., Aldoshin Sergey M., Frolova Lyubov A.
- Журнал: INORGANICS
- Том: 13
- Номер: 1
- Год издания: 2025
- Издательство: Molecular Diversity Preservation International (MDPI)
- Местоположение издательства: Basel, Switzerland
- Первая страница: 13
- Последняя страница: 13
- DOI: 10.3390/inorganics13010013
- Аннотация: A crucial problem of the photoinduced degradation of perovskite semiconductors based on complex lead halides has been addressed here by suppressing PbI2 photolysis to metallic lead. The systematic screening of >30 modifying cations introduced as substituents for 5% of Pb2+ in the PbI2 composition has revealed their tremendous effects on the rate of material degradation under light exposure. Thus, the most successful stabilizing cations could maintain a high absorbance of the Pb0.95M0.1/nI2 films and block Pb0 formation after 400 h of continuous illumination, when the non-modified PbI2 films completely decomposed to Pb0 and I2. The obtained results present a promising solution for the problem of metallic lead formation in the active layer of perovskite solar cells during their operation, which can pave the way for the development of a new generation of highly efficient and stable perovskite photovoltaics.
- Добавил в систему: Алдошин Сергей Михайлович