Perovskite Light‐Emitting Diodes with External Quantum Efficiency Exceeding 22% via Small‐Molecule Passivation

• Published in: Advanced materials (Weinheim) Vol. 33; no. 18; pp. e2007169 - n/a
• Main Authors: Chu, Zema, Ye, Qiufeng, Zhao, Yang, Ma, Fei, Yin, Zhigang, Zhang, Xingwang, You, Jingbi
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.05.2021
• Subjects: Defects; ETPTA; Materials science; non‐radiative recombination; Optoelectronics; Passivity; perovskite light‐emitting diodes; Perovskites; Polycrystals; Quantum efficiency; Radiative recombination; Spinning (materials); non-radiative recombination; ETPTA; perovskite light-emitting diodes

Perovskite light‐emitting diodes (PeLEDs) are considered as particularly attractive candidates for high‐quality lighting and displays, due to possessing the features of wide gamut and real color expression. However, most PeLEDs are made from polycrystalline perovskite films that contain a high conce...