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

Kong，Lingmei1; Luo，Yun1; Wu，Qianqian1; Xiao，Xiangtian2; Wang，Yuanzhi1; Chen，Guo1; Zhang，Jianhua1; Wang，Kai2; Choy，Wallace C.H.3; Zhao，Yong Biao4; Li，Hongbo5; Chiba，Takayuki6; Kido，Junji6; Yang，Xuyong1

2024-12-01

10.1038/s41377-024-01500-7

Light: Science and Applications   影响因子和分区

2095-5545

2047-7538

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 high-color 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, a maximum external quantum efficiency of over 40%, and an operational half-lifetime of over 42,000 h.

SCI

英语

其他

2-s2.0-85195985327

Scopus

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
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

Kong，Lingmei,Luo，Yun,Wu，Qianqian,et al. Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent[J]. Light: Science and Applications,2024,13(1).

Kong，Lingmei.,Luo，Yun.,Wu，Qianqian.,Xiao，Xiangtian.,Wang，Yuanzhi.,...&Yang，Xuyong.(2024).Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent.Light: Science and Applications,13(1).

Kong，Lingmei,et al."Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent".Light: Science and Applications 13.1(2024).