文献类型：期刊文献

英文题名：Thermally Induced Crystallization of High Quality CH3NH3PbI3 Film with Large Grains for Highly Efficient Perovskite Solar Cells

作者：Hou, Yu[1,2];Yang, Shuang[1];Chen, Xiao[1];Li, Chunzhong[1];Zhao, Huijun[2];Yang, Hua Gui[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Griffith Univ, Ctr Clean Environm & Energy, Gold Coast Campus, Southport, Qld 4222, Australia

年份：2017

卷号：23

期号：24

起止页码：5658

外文期刊名：CHEMISTRY-A EUROPEAN JOURNAL

收录：;EI(收录号：20171703591376);WOS:【SCI-EXPANDED(收录号:WOS:000400044400003)】；

基金：This work was financially supported by the National Natural Science Foundation of China (21373083, 21573068 and 51602103), SRF for ROCS, SEM, SRFDP, Fundamental Research Funds for the Central Universities (WD1514301), the China Postdoctoral Science Foundation Funded Project (2015M581547, 2016T90342), the "Chen Guang" Project supported by the Shanghai Municipal Education Commission and the Shanghai Education Development Foundation (15CG26), the Major Research plan of the National Natural Science Foundation of China (91534202), the 111 Project (B14018), the Shanghai Sailing Program (16YF1402100) and ARC Discovery Projects (DP150103775).

语种：英文

外文关键词：crystallization; micrometer size; perovskites; solar cells; thin films

摘要：Recently, fully covered and smooth perovskite films could be fabricated by optimized coating methods; however, it is still hard to prepare perovskite films with large grain sizes and high crystallinity. Given the fact that thermal energy can promote crystallization, we combine high-temperature crystallization with the application of a solvent featuring a high boiling point, in order to produce high quality perovskite films with micrometer-sized grains. We further investigated the temperature dependence of the thermally induced synthetic strategy, whereby the grains become larger as the temperature is elevated. After solar cell device fabrication, the efficiency of the best cell can attain a high value of 15.53% with reduced hysteresis behavior.