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Perovskite spin light-emitting diodes with simultaneously high electroluminescence dissymmetry and high external quantum efficiency

Author

Listed:
  • Shuai He

    (Harbin Institute of Technology (Shenzhen)
    Harbin Institute of Technology (Shenzhen))

  • Weixi Lin

    (Harbin Institute of Technology (Shenzhen)
    Shenzhen)

  • De Yu

    (Harbin Institute of Technology (Shenzhen))

  • Junwei Shi

    (Soochow University)

  • Zhen Yin

    (Harbin Institute of Technology (Shenzhen))

  • Changjiu Sun

    (Nankai University
    Nankai University)

  • Haoliang Liu

    (Harbin Institute of Technology (Shenzhen)
    Harbin Institute of Technology (Shenzhen))

  • Chen Zhang

    (Shenzhen)

  • Jianyu Yuan

    (Soochow University)

  • Sai Bai

    (University of Electronic Science and Technology of China)

  • Shumin Xiao

    (Harbin Institute of Technology (Shenzhen))

  • Guankui Long

    (Nankai University)

  • Mingjian Yuan

    (Nankai University
    Nankai University)

  • Yuanzhi Jiang

    (Nankai University
    Nankai University)

  • Yimu Chen

    (Harbin Institute of Technology (Shenzhen)
    Harbin Institute of Technology (Shenzhen))

  • Qinghai Song

    (Harbin Institute of Technology (Shenzhen)
    Harbin Institute of Technology (Shenzhen))

Abstract

Realizing high electroluminescence dissymmetric factor and high external quantum efficiency at the same time is challenging in light-emitting diodes with direct circularly polarized emission. Here, we show that high electroluminescence dissymmetric factor and high external quantum efficiency can be simultaneously achieved in light-emitting diodes based on chiral perovskite quantum dots. Specifically, chiral perovskite quantum dots with chiral-induced spin selectivity can concurrently serve as localized radiative recombination centers of spin-polarized carriers for circularly polarized emission, thereby suppressing the relaxation of spins, Meanwhile, improving the chiral ligand exchange efficiency is found to synergistically promote their spin selectivity and optoelectronic properties so that chiroptoelectronic performance of resulting devices can be facilitated. Our device simultaneously exhibits high electroluminescence dissymmetric factor (R: 0.285 and S: 0.251) and high external quantum efficiency (R: 16.8% and S: 16%), demonstrating their potential in constructing high-performance chiral light sources.

Suggested Citation

  • Shuai He & Weixi Lin & De Yu & Junwei Shi & Zhen Yin & Changjiu Sun & Haoliang Liu & Chen Zhang & Jianyu Yuan & Sai Bai & Shumin Xiao & Guankui Long & Mingjian Yuan & Yuanzhi Jiang & Yimu Chen & Qingh, 2025. "Perovskite spin light-emitting diodes with simultaneously high electroluminescence dissymmetry and high external quantum efficiency," Nature Communications, Nature, vol. 16(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-57472-8
    DOI: 10.1038/s41467-025-57472-8
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    References listed on IDEAS

    as
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    2. Yasser Hassan & Jong Hyun Park & Michael L. Crawford & Aditya Sadhanala & Jeongjae Lee & James C. Sadighian & Edoardo Mosconi & Ravichandran Shivanna & Eros Radicchi & Mingyu Jeong & Changduk Yang & H, 2021. "Ligand-engineered bandgap stability in mixed-halide perovskite LEDs," Nature, Nature, vol. 591(7848), pages 72-77, March.
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