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Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes

Author

Listed:
  • Max Karlsson

    (Linköping University)

  • Ziyue Yi

    (Linköping University
    University of Cambridge)

  • Sebastian Reichert

    (Technische Universität Chemnitz)

  • Xiyu Luo

    (Linköping University
    Tsinghua University Beijing)

  • Weihua Lin

    (Lund University)

  • Zeyu Zhang

    (Beijing University of Technology)

  • Chunxiong Bao

    (Linköping University)

  • Rui Zhang

    (Linköping University)

  • Sai Bai

    (Linköping University)

  • Guanhaojie Zheng

    (Linköping University)

  • Pengpeng Teng

    (Linköping University)

  • Lian Duan

    (Tsinghua University Beijing)

  • Yue Lu

    (Beijing University of Technology)

  • Kaibo Zheng

    (Lund University
    Technical University of Denmark)

  • Tönu Pullerits

    (Lund University)

  • Carsten Deibel

    (Technische Universität Chemnitz)

  • Weidong Xu

    (Linköping University)

  • Richard Friend

    (University of Cambridge)

  • Feng Gao

    (Linköping University)

Abstract

Bright and efficient blue emission is key to further development of metal halide perovskite light-emitting diodes. Although modifying bromide/chloride composition is straightforward to achieve blue emission, practical implementation of this strategy has been challenging due to poor colour stability and severe photoluminescence quenching. Both detrimental effects become increasingly prominent in perovskites with the high chloride content needed to produce blue emission. Here, we solve these critical challenges in mixed halide perovskites and demonstrate spectrally stable blue perovskite light-emitting diodes over a wide range of emission wavelengths from 490 to 451 nanometres. The emission colour is directly tuned by modifying the halide composition. Particularly, our blue and deep-blue light-emitting diodes based on three-dimensional perovskites show high EQE values of 11.0% and 5.5% with emission peaks at 477 and 467 nm, respectively. These achievements are enabled by a vapour-assisted crystallization technique, which largely mitigates local compositional heterogeneity and ion migration.

Suggested Citation

  • Max Karlsson & Ziyue Yi & Sebastian Reichert & Xiyu Luo & Weihua Lin & Zeyu Zhang & Chunxiong Bao & Rui Zhang & Sai Bai & Guanhaojie Zheng & Pengpeng Teng & Lian Duan & Yue Lu & Kaibo Zheng & Tönu Pul, 2021. "Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-020-20582-6
    DOI: 10.1038/s41467-020-20582-6
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    Cited by:

    1. Huihui Zhu & Ao Liu & Kyu In Shim & Haksoon Jung & Taoyu Zou & Youjin Reo & Hyunjun Kim & Jeong Woo Han & Yimu Chen & Hye Yong Chu & Jun Hyung Lim & Hyung-Jun Kim & Sai Bai & Yong-Young Noh, 2022. "High-performance hysteresis-free perovskite transistors through anion engineering," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Yang Bryan Cao & Daquan Zhang & Qianpeng Zhang & Xiao Qiu & Yu Zhou & Swapnadeep Poddar & Yu Fu & Yudong Zhu & Jin-Feng Liao & Lei Shu & Beitao Ren & Yucheng Ding & Bing Han & Zhubing He & Dai-Bin Kua, 2023. "High-efficiency, flexible and large-area red/green/blue all-inorganic metal halide perovskite quantum wires-based light-emitting diodes," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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