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

Lingmei Kong; Yun Luo; Qianqian Wu; Xiangtian Xiao; Yuanzhi Wang; Guo Chen; Jianhua Zhang; Kai Wang; Wallace C. H. Choy; Yong-Biao Zhao; Hongbo Li; Takayuki Chiba; Junji Kido; Xuyong Yang

doi:10.1038/s41377-024-01500-7

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

Original Articles

- Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent
- Light: Science & Applications Vol. 13, Issue 7, Pages: 1364-1371(2024)
- Affiliations：
  
  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
- Author bio：
  
  Jianhua Zhang (jhzhang@shu.edu.cn)
  Kai Wang (wangk@sustech.edu.cn)
  Xuyong Yang (yangxy@shu.edu.cn)
- Funds：
- DOI：10.1038/s41377-024-01500-7
  CLC：
- Published：31 July 2024，
  
  Published Online：12 June 2024，
  
  Received：03 December 2023，
  
  Revised：19 May 2024，
  
  Accepted：30 May 2024
- Accepted：
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Kong, L. M. et al. Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent. Light: Science & Applications, 13, 1364-1371 (2024).
DOI：

Kong, L. M. et al. Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent. Light: Science & Applications, 13, 1364-1371 (2024). DOI： 10.1038/s41377-024-01500-7.

摘要

Abstract

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

−2

a maximum external quantum efficiency of over 40%

and an operational half-lifetime of over 42

000 h.

关键词

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references

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