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Hybrid Self‐Assembled Molecular Interlayers for Efficient and Stable Inverted Perovskite Solar Cellsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 7 мая 2025 г.
- Авторы: Cao Shuguang, Luo Shizi, Zheng Tongjun, Bi Zhuoneng, Mo Jiamei, Gutsev Lavrenty G., Emelianov Nikita A., Ozerova Victoria V., Slesarenko Nikita A., Gutsev Gennady L., Aldoshin Sergey M., Sun Fangyuan, Tian Yanqing, Ramachandran Bala R., Troshin Pavel A., Xu Xueqing
- Журнал: Advanced Energy Materials
- Год издания: 2025
- Первая страница: 2405367
- DOI: 10.1002/aenm.202405367
- Аннотация: Self-assembled molecules (SAMs) have been widely employed as holetransport layers (HTLs) in inverted perovskite solar cells (PSCs). However,the carbazole core of [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid(Me-4PACz) is insufficiently effective for passivating defects at the “bottom” ofperovskite films, and the weak anchoring ability of phosphate groups towardthe NiOx substrate appears to promote the formation of dimers, trimers, andhigher-order oligomers, resulting in molecular accumulation. Herein, a noveltechnique is proposed to combine Me-4PACz with different thiol moleculesto modify the buried interface of PSCs. Molecular dynamics simulations andinfrared scattering-type scanning near-field optical microscopy (IR s-SNOM)results show that co-depositing Me-4PACz with thiol molecules forms hybridSAMs that densely and uniformly cover the NiOx surface. The island-likestructure of the hybrid SAMs serves as a template for forming the perovskitebulk heterojunction composed of interpenetrating networks of MA-richand FA-rich domains, enabling efficient charge generation and suppressedbimolecular recombination. Particularly, (3-mercaptopropyl) trimethoxysilane(MPTMS) effectively prevents Me-4PACz aggregation by forminga multi-dentate anchor on the NiOx surface through hydrolytic condensationof ─OCH3 groups, while its ─SH groups passivate uncoordinatedPb2+ at the perovskite/HTL interface. Consequently, the resultinghybrid SAMs-modified PSC achieve a champion photoelectric conversionefficiency (PCE) of 25.4% and demonstrated better operational stability.
- Добавил в систему: Алдошин Сергей Михайлович