Modulating MAPbI3 perovskite solar cells by amide molecules:Crystallographic regulation and surface passivation

作     者：Jin Xie Ziren Zhou Hongwei Qiao Mengjiong Chen Lijie Wang Shuang Yang Yu Hou Huagui Yang Jin Xie;Ziren Zhou;Hongwei Qiao;Mengjiong Chen;Lijie Wang;Shuang Yang;Yu Hou;Huagui Yang

作者机构：Key Laboratory for Ultrafine Materials of Ministry of EducationShanghai Engineering Research Center of Hierarchical NanomaterialsSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2021年第30卷第5期

页      面：179-185页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Funds for Distinguished Young Scholar(51725201) the National Natural Science Foundation of China(51972111,51902185,51602103) Young Elite Scientists Sponsorship Program by CAST(2017QNRC001) International(Regional)Cooperation and Exchange Projects of the National Natural Science Foundation of China(51920105003) Innovation Program of Shanghai Municipal Education Commission(E00014) the Fundamental Research Funds for the Central Universities(JKD012016025,JKD012016022) Shanghai Engineering Research Center of Hierarchical Nanomaterials(18DZ2252400) 

主　　题：Amide Methylammonium lead triiodide Crystallization Solar cell 

摘      要：A controllable crystallization is of practical importance to produce high-quality perovskite thin films with reduced structural *** bases as electron-pair donor chemicals can strongly coordinate to lead ions and have been extensively employed to manipulate the growth of perovskite *** this work,we demonstrate a series of Lewis-base amides,for morphological regulation of methylammonium lead triiodide(MAPbI3)thin *** screened acetamide was demonstrated to decently improve the grain size,along with a spatial distribution at grain boundaries(GBs).The mesostructured solar cells of acetamide-modified absorbers yielded an optimized power conversion efficiency(PCE)of 20.04%with a mitigated open-circuit voltage(V_(OC))deficit of 0.39 *** work provides a facile and cost-effective strategy toward controllable fabrication of high-performance MAPbI3 solar cells.