Nature Communications (Dec 2022)

Synergistic passivation and stepped-dimensional perovskite analogs enable high-efficiency near-infrared light-emitting diodes

  • Yongjie Liu,
  • Chen Tao,
  • Yu Cao,
  • Liangyan Chen,
  • Shuxin Wang,
  • Pei Li,
  • Cheng Wang,
  • Chenwei Liu,
  • Feihong Ye,
  • Shengyong Hu,
  • Meng Xiao,
  • Zheng Gao,
  • Pengbing Gui,
  • Fang Yao,
  • Kailian Dong,
  • Jiashuai Li,
  • Xuzhi Hu,
  • Hengjiang Cong,
  • Shuangfeng Jia,
  • Ti Wang,
  • Jianbo Wang,
  • Gang Li,
  • Wei Huang,
  • Weijun Ke,
  • Jianpu Wang,
  • Guojia Fang

DOI
https://doi.org/10.1038/s41467-022-35218-0
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 12

Abstract

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Defect-assisted nonradiative recombination and carrier aggregation at the interface hinder the potential of perovskites as emitter for light-emitting diodes. Here, Fang et al. achieve an external quantum efficiency of 24.1% by combining multidimensional perovskite with cascade conduction bands.