Nature Communications (Feb 2018)

Minimising efficiency roll-off in high-brightness perovskite light-emitting diodes

  • Wei Zou,
  • Renzhi Li,
  • Shuting Zhang,
  • Yunlong Liu,
  • Nana Wang,
  • Yu Cao,
  • Yanfeng Miao,
  • Mengmeng Xu,
  • Qiang Guo,
  • Dawei Di,
  • Li Zhang,
  • Chang Yi,
  • Feng Gao,
  • Richard H. Friend,
  • Jianpu Wang,
  • Wei Huang

DOI
https://doi.org/10.1038/s41467-018-03049-7
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 7

Abstract

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Large drop in efficiency at high brightness has been holding back the development of various light-emitting diodes including halide perovskite. Here Zou et al. achieve high quantum efficiency of 10% under a high current density of 500 mA cm−2 in perovskite-based diodes by reducing luminescence quenching.