Letter pubs.acs.org/JPCL
Simple and Efficient Green-Light-Emitting Diodes Based on Thin Organolead Bromide Perovskite Films via Tuning Precursor Ratios and Postannealing Temperature Xiaofei Zhao,†,‡ Baohua Zhang,*,† Ruyan Zhao,†,‡ Bing Yao,†,‡ Xuejing Liu,†,‡ Jun Liu,† and Zhiyuan Xie*,† †
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China ‡ University of Chinese Academy of Sciences, Beijing 100049, P.R. China S Supporting Information *
ABSTRACT: Organometal halide perovskites (OHPs) are becoming a hot topic in the field of display and lighting. Unlike the strategy used for solar cells, that is, using several hundred nanometers thick OHP film for fully absorbing solar light to convert electricity, thin-film OHPs (
