文献类型：期刊文献

英文题名：Enhancing Interfacial Contact of Hole-Collecting Monolayer via Coassembly with Multiped Triphenylamine for Mechanically Stable Inverted Perovskite Solar Cells

作者：Wang, Songran[1,2];Zhan, Liqing[1,2];Zhang, Shuo[1,2,3];Zhang, Huidong[1,2];Ji, Xiaoyu[1,2];Zhou, Lihui[1,2];Tan, Haijun[4];Zhu, Wei-Hong[1,2,3];Wu, Yongzhen[1,2,3]

机构：[1]East China Univ Sci & Technol, Inst Fine Chem, Sch Chem & Mol Engn, Key Lab Adv Mat,Frontiers Sci Ctr Materiobiol & Dy, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Inst Fine Chem,Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem,Frontiers Sci Ctr, Joint Int Res Lab Precis Chem & Mol Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Ctr Photosensit Chem Engn, Shanghai 200237, Peoples R China;[4]Guilin Univ Technol, Coll Chem & Bioengn, Guangxi Key Lab Electrochem & Magnetochem Funct Ma, Guilin 541004, Peoples R China

年份：2025

外文期刊名：CCS CHEMISTRY

收录：WOS:【ESCI(收录号:WOS:001632214300001)】；

基金：The work was supported by the National Natural Science Foundation of China (grant nos. 22425502, T2488302, W2412114, and 22179037) , Shanghai Municipal Science and Technology Major Project, China (grant nos. 24DX1400200 and 24DZ3001003) , Shanghai Pilot-Program for Basic Research, China (grant no. 22TQ14001001) , Program of Introducing Talents of Discipline to Universities, China (grant no. B16017) , Shanghai Sailing Program (grant no. 24YF2708200) , Fundamental Research Funds for the Central Universities, Postdoctoral Fellowship Program of China Postdoctoral Science Foundation (CPSF) (grant no. BX20240117) . We are thankful to the staff of the Shanghai Synchrotron Radiation Facility of BL14B1 (https://cstr.cn/31124.02.SSRF.BL14B1) for their assistance with GIWAXS measurements and the Research Center of Analysis and Test of East China University of Science and Technology (ECUST) for their help with various testing and data acquisition techniques.

语种：英文

外文关键词：inverted perovskite solar cells; selfassembled monolayers; coassembly; interfacial contact; mechanical stability

摘要：Inverted perovskite solar cells (PSCs) have gained significant attention for their high efficiency and flexibility, with carbazole-based self-assembled monolayers emerging as promising hole-collecting layers due to their precise molecule control for efficient charge transfer and minimized recombination. However, their poor interfacial contact often leads to inadequate wettability and mechanical instability. Here, we address these challenges by designing cyanoethyl phosphonic acid-based multiped triphenylamines and constructing coassembly of hole-collecting monolayers. Our approach not only significantly improved the wettability of perovskite precursor solutions for better film formation but also exhibited superior interfacial adhesion to strengthen the mechanical durability of the perovskite layer. Consequently, the resulting rigid inverted PSCs demonstrated a remarkable power conversion efficien-cy of 26.27%. Furthermore, this strategy enhanced device stability, particularly the fatigue resistance of flexible devices, which retained 90% of their initial efficiency after 5000 bending cycles at a curvature radius of 5 mm, demonstrating outstanding mechanical robustness.