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Transcending the slow bimolecular recombination in lead-halide perovskites for electroluminescence

Author

Listed:
  • Guichuan Xing

    (Institute of Applied Physics and Materials Engineering, University of Macau)

  • Bo Wu

    (School of Physical and Mathematical Sciences, Nanyang Technological University)

  • Xiangyang Wu

    (School of Physical and Mathematical Sciences, Nanyang Technological University)

  • Mingjie Li

    (School of Physical and Mathematical Sciences, Nanyang Technological University)

  • Bin Du

    (Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech))

  • Qi Wei

    (Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech))

  • Jia Guo

    (Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech))

  • Edwin K. L. Yeow

    (School of Physical and Mathematical Sciences, Nanyang Technological University)

  • Tze Chien Sum

    (School of Physical and Mathematical Sciences, Nanyang Technological University)

  • Wei Huang

    (Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech)
    Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), SICAM, Nanjing University of Posts & Telecommunications, 9 Wenyuan Road)

Abstract

The slow bimolecular recombination that drives three-dimensional lead-halide perovskites’ outstanding photovoltaic performance is conversely a fundamental limitation for electroluminescence. Under electroluminescence working conditions with typical charge densities lower than 1015 cm−3, defect-states trapping in three-dimensional perovskites competes effectively with the bimolecular radiative recombination. Herein, we overcome this limitation using van-der-Waals-coupled Ruddlesden-Popper perovskite multi-quantum-wells. Injected charge carriers are rapidly localized from adjacent thin few layer (n≤4) multi-quantum-wells to the thick (n≥5) multi-quantum-wells with extremely high efficiency (over 85%) through quantum coupling. Light emission originates from excitonic recombination in the thick multi-quantum-wells at much higher decay rate and efficiency than bimolecular recombination in three-dimensional perovskites. These multi-quantum-wells retain the simple solution processability and high charge carrier mobility of two-dimensional lead-halide perovskites. Importantly, these Ruddlesden-Popper perovskites offer new functionalities unavailable in single phase constituents, permitting the transcendence of the slow bimolecular recombination bottleneck in lead-halide perovskites for efficient electroluminescence.

Suggested Citation

  • Guichuan Xing & Bo Wu & Xiangyang Wu & Mingjie Li & Bin Du & Qi Wei & Jia Guo & Edwin K. L. Yeow & Tze Chien Sum & Wei Huang, 2017. "Transcending the slow bimolecular recombination in lead-halide perovskites for electroluminescence," Nature Communications, Nature, vol. 8(1), pages 1-9, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14558
    DOI: 10.1038/ncomms14558
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    Cited by:

    1. Songhao Guo & Willa Mihalyi-Koch & Yuhong Mao & Xinyu Li & Kejun Bu & Huilong Hong & Matthew P. Hautzinger & Hui Luo & Dong Wang & Jiazhen Gu & Yifan Zhang & Dongzhou Zhang & Qingyang Hu & Yang Ding &, 2024. "Exciton engineering of 2D Ruddlesden–Popper perovskites by synergistically tuning the intra and interlayer structures," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Abyl Muradov & Daria Frolushkina & Vadim Samusenkov & Gulsara Zhamanbayeva & Sebastian Kot, 2021. "Methods of Stability Control of Perovskite Solar Cells for High Efficiency," Energies, MDPI, vol. 14(10), pages 1-16, May.
    3. Qi Han & Jun Wang & Shuangshuang Tian & Shen Hu & Xuefeng Wu & Rongxu Bai & Haibin Zhao & David W. Zhang & Qingqing Sun & Li Ji, 2024. "Inorganic perovskite-based active multifunctional integrated photonic devices," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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