Dopant-free hole-transporting materials featuring intramolecular π-π interactions for efficient and stable perovskite solar cells

Xiaofan Gai,Huayu Bao,Cancan Gu,Zhenhu Zhang,Jianye Li,Xiaohui Cao,Shirong Wang,Xianggao Li,Guohui Yin

Chemical Engineering Journal（2023）

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摘要

•A new strategy of developing high-performance dopant-free HTMs for PSCs is presented.•Two novel HTMs with intramolecular π-π interactions were developed for PSCs.•Crystal structures offer information on molecular configuration and interactions.•PSCs based on BFM-C6 showed a PCE of 19.06% with enhanced long-term stability.

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关键词

Hole-transporting materials,Intramolecular π-π interactions,Dopant-free,Perovskite solar cells,Stability

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