Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent  

作　　者：Lingmei Kong Yun Luo Qianqian Wu Xiangtian Xiao Yuanzhi Wang Guo Chen Jianhua Zhang Kai Wang Wallace CHChoy Yong-Biao Zhao Hongbo Li Takayuki Chiba Junji Kido Xuyong Yang 

机构地区：[1]Key Laboratory of Advanced Display and System Applications of Ministry of Education,Shanghai University,Shanghai 200072,China. [2]Institute of Nanoscience and Applications,Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen 518055,China. [3]Department of Electrical and Electronic Engineering,The University of Hong Kong,Hong Kong,China. [4]Department of Physics and Lakeside AR/VR Laboratory,International Joint Research Center for Optoelectronic and Engineering Research,Yunnan University,Kunming 650091,China. [5]Experimental Center of Advanced Materials,School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China. [6]Graduate School of Organic Materials Science,Frontier Center for Organic Materials,Yamagata University,4-3-16 Jonan,Yonezawa 992–8510,Japan

出　　处：《Light(Science & Applications)》2024年第7期1364-1371,共8页光（科学与应用)（英文版）

基　　金：the National Key Research and Development Program of China(2022YFE0200200 and 2022YFB3606504);National Natural Science Foundation of China(62174104 and 62122034);Program of Shanghai Academic/Technology Research Leader(22XD1421200);G.C.also thanks financial support from Shanghai S&T Committee Project 20392001100.

摘　　要：Light-emitting diodes(LEDs)based on perovskite semiconductor materials with tunable emission wavelength in visible light range as well as narrow linewidth are potential competitors among current light-emitting display technologies,but still suffer from severe instability driven by electric field.Here,we develop a stable,efficient and highcolor purity hybrid LED with a tandem structure by combining the perovskite LED and the commercial organic LED technologies to accelerate the practical application of perovskites.Perovskite LED and organic LED with close photoluminescence peak are selected to maximize photon emission without photon reabsorption and to achieve the narrowed emission spectra.By designing an efficient interconnecting layer with p-type interface doping that provides good opto-electric coupling and reduces Joule heating,the resulting green emitting hybrid LED shows a narrow linewidth of around 30 nm,a peak luminance of over 176,000 cd m^(−2),a maximum external quantum efficiency of over 40%,and an operational half-lifetime of over 42,000 h.

关 键 词：DIODES NARROW quantum 

分 类 号：TN312.8[电子电信—物理电子学]