Molecular locking of defects <i>via</i> H-bonding/coordination dual-interaction enables efficient perovskite solar cells
Yansen Guo, Hailong Huang, Yiqing Zhang, Zewu Feng, Yan‐Bo Wang, Jianjun Xu, Huanyu Zhang, Yi Ji, Le Li, Chenghao Ge, Xueqi Wu, Yitong Liu, Xin Li, Yige Peng, Chaopeng Huang, Yurou Zhang, Jingsong Sun, Shiyu Chen, Weichang Zhou, Dongsheng Tang, Jefferson Zhe Liu, Klaus Weber, Youyong Li, Bin Ding, Hualin Zhan, Xiaohong Zhang, Jun Peng
Abstract
A multifunctional additive, 4-methylsulfonylbenzoic acid (4-MeSBA), passivates Pb-site defects and stabilizes FA-based perovskites via coordination and hydrogen bonding, enabling inverted PSCs with a champion efficiency of 26.35%.
Topics & Concepts
Perovskite (structure)Dual (grammatical number)Materials scienceCrystallographyOptoelectronicsChemistryLiteratureArtPerovskite Materials and ApplicationsConducting polymers and applicationsOrganic Electronics and Photovoltaics