文献类型：期刊文献

中文题名：CsPbX3钙钛矿材料与光伏器件稳定性强化研究进展

英文题名：Research progress on stability enhancement of CsPbX3 perovskite and photovoltaic devices

作者：许晓佳[1];吴永真[1];朱为宏[1]

机构：[1]华东理工大学化学与分子工程学院,上海200237

年份：2020

卷号：71

期号：9

起止页码：3933

中文期刊名：化工学报

外文期刊名：CIESC Journal

收录：CSTPCD;;EI(收录号：20203909249095);Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：国家自然科学基金项目(21706070,21822504)。

语种：中文

中文关键词：全无机钙钛矿;太阳能电池;相变;稳定性;结晶;效率

外文关键词：all-inorganic perovskite;solar cells;phase change;stability;crystallization;efficiency

摘要：基于CsPbX3(X为卤素阴离子)的全无机钙钛矿与含甲胺、甲脒等有机阳离子的有机-无机杂化钙钛矿相比,具有更优异的热稳定性,是近几年来钙钛矿光电领域最具吸引力的研究热点之一。目前全无机钙钛矿太阳电池的最高光电转换效率已经达到19.03%,具有很好的发展潜力。然而,这类钙钛矿材料的Goldschmidt容忍因子接近临界值,存在相不稳定的问题。近年来已经有相当多的研究聚焦于CsPbX3钙钛矿材料与器件的稳定性强化工作。从增大容忍因子、提高相转变能垒、减小表面能、调控结晶过程等策略与方法入手,系统总结了近年来在制备稳定高效全无机CsPbX3钙钛矿太阳能电池方面的进展,并对面临的挑战和未来的发展方向做出了展望。
The CsPbX3(X is halide anions)based all-inorganic perovskites are regarded to be one of the most appealing research hotspots among perovskite photovoltaics in the past few years,mainly due to their superior thermal stability compared to the organic-inorganic hybrid counterparts.At present,the highest photoelectric conversion efficiency of all-inorganic perovskite solar cells has reached 19.03%,which has good development potential.However,the Goldschmidt tolerance factor of this type of perovskite is close to the critical boundary value,which leads to phase instability.Accordingly,numerous works have been published on the stability enhancement of CsPbX3 perovskite in recent years.This review summarizes the progress and strategies in the preparation of stable and efficient all-inorganic perovskite solar cells(PSCs),including the enlargement of tolerance factor,enhancement of activation energy barrier for phase transition(black phase to yellow phase),and decreasing the surface energy as well as modulation of the crystallization procedure.Finally,challenges and perspective of the future development of all-inorganic CsPbX3 based PSCs are presented.