Hydrogen-bonded cation-composition-engineered color-stable blue PeLEDs  

氢键键合阳离子组分设计——稳定蓝光PeLEDs发射颜色

作　　者：Fengjun Chun Kyung Yeon Jang Tae-Woo Lee 

机构地区：[1]Department of Materials Science and Engineering,Seoul National University,Seoul 08826,Republic of Korea [2]School of Chemical and Biological Engineering,Seoul National University,Seoul 08826,Republic of Korea [3]Institute of Engineering Research.Research Institute of Advanced Materials.Nano Systems Institute,Seoul National University,Seoul 08826,Republic of Korea

出　　处：《Science Bulletin》2021年第21期2159-2161,M0003,共4页科学通报（英文版）

基　　金：supported by the National Research Foundation of Korea(NRF)grants funded by the Korea government(Ministry of Science and Information&Communication Technology(ICT))(NRF-2016R1A3B1908431)。

摘　　要：Perovskite light-emitting diodes(PeLEDs)have been considered to be the most promising candidate for solid-state lighting and high-definition full-color display due to their attractive properties such as tunable emission wavelengths,narrow full width at half maximum(FWHM),and high photoluminescence quantum yield(PLQY)[1–3].The external quantum efficiencies(EQEs)of greenand red-emitting Pe LEDs have exceeded 20%,rocketing toward the theoretical limit[4,5],but the blue Pe LEDs still suffer from the obstacles of low efficiency and poor operational stability,which largely overshadows their real applications and industrialscale adoption.

关 键 词：TUNABLE quantum ATTRACTIVE 

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