Efficient and ultra-stable perovskite light-emitting diodes

By Bingbing Guo, Runchen Lai, Sijie Jiang, Yaxiao Lian, Zhixiang Ren, Puyang Li, Xuhui Cao, Shiyu Xing, Yaxing Wang, Weiwei Li and 5 more. 2022

265 citations recorded by the source corpus.

Perovskite light-emitting diodes (PeLEDs) have emerged as a strong contender for next-generation display and information technologies. However, similar to perovskite solar cells, the poor operational stability remains the main obstacle toward commercial applications. Here we demonstrate ultra-stable and efficient PeLEDs with extraordinary operational lifetimes (T 50 ) of 1.0×10 4 h, 2.8×10 4 h, 5.4×10 5 h, and 1.9×10 6 h at initial radiance (or current densities) of 3.7 W sr -1 m -2 (~5 mA cm -2 ), 2.1 W sr -1 m -2 (~3.2 mA cm 2 ), 0.42 W sr -1 m -2 (~1.1 mA cm -2 ), and 0.21 W sr -1 m -2 (~0.7 mA cm -2 ) respectively, and external quantum efficiencies

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/a0afdd35f05100217588ba49a46d772baf1ae68a