文献类型：期刊文献

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

作者：Xie, Jin[1];Zhou, Ziren[1];Qiao, Hongwei[1];Chen, Mengjiong[1];Wang, Lijie[1];Yang, Shuang[1];Hou, Yu[1];Yang, Huagui[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China

年份：2021

卷号：56

起止页码：179

外文期刊名：JOURNAL OF ENERGY CHEMISTRY

收录：;EI(收录号：20203509115610);WOS:【SCI-EXPANDED(收录号:WOS:000634490000004)】；

基金：This work was 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) and Shanghai Engineering Research Center of Hierarchical Nanomaterials (18DZ2252400) .

语种：英文

外文关键词：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 defects. Lewis bases as electron-pair donor chemicals can strongly coordinate to lead ions and have been extensively employed to manipulate the growth of perovskite crystals. In this work, we demonstrate a series of Lewis-base amides, for morphological regulation of methylammonium lead triiodide (MAPbI3) thin films. The 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 (VOC) deficit of 0.39 V. This work provides a facile and cost-effective strategy toward controllable fabrication of high-performance MAPbI3 solar cells. ? 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.