Ion migration in metal halide perovskite QLEDs and its inhibition  

作　　者：董宇辉 严丹妮 杨帅 魏乃炜 邹友生 曾海波 Yuhui Dong;Danni Yan;Shuai Yang;Naiwei Wei;Yousheng Zou;Haibo Zeng(Institute of Optoelectronics&Nanomaterials,College of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Key Laboratory of Advanced Display Materials and Devices,Ministry of Industry and Information Technology,Nanjing 210094,China)

机构地区：[1]Institute of Optoelectronics&Nanomaterials,College of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China [2]Key Laboratory of Advanced Display Materials and Devices,Ministry of Industry and Information Technology,Nanjing 210094,China

出　　处：《Chinese Physics B》2023年第1期11-21,共11页中国物理B（英文版）

基　　金：supported by the Natural Natural Science Foundation of China (Grant Nos.61904081 and 51672132);the Natural Science Foundation of Jiangsu Province,China (Grant No.BK20190449);the Postdoctoral Research Funding Program of Jiangsu Province,China (Grant No.2020Z144)。

摘　　要：Benefiting from the excellent properties such as high photoluminescence quantum yield(PLQY), wide gamut range,and narrow emission linewidth, as well as low-temperature processability, metal halide perovskite quantum dots(QDs)have attracted wide attention from researchers. Despite tremendous progress has been made during the past several years,the commercialization of perovskite QDs-based LEDs(PeQLEDs) is still plagued by the instability. The ion migration in halide perovskites is recognized as the key factor causing the performance degradation of PeQLEDs. In this review, the elements species of ion migration, the effects of ion migration on device performance and stability, and effective strategies to hinder/mitigate ion migration in PeQLEDs are successively discussed. Finally, the forward insights on the future research are highlighted.

关 键 词：perovskite quantum dots light-emitting diodes ion migration STABILITY 

分 类 号：TB34[一般工业技术—材料科学与工程] TN312.8[电子电信—物理电子学]