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A donor–acceptor-type hole-selective contact reducing non-radiative recombination losses in both subcells towards efficient all-perovskite tandems

Author

Listed:
  • Jingwei Zhu

    (Sichuan University)

  • Yi Luo

    (Sichuan University)

  • Rui He

    (Sichuan University)

  • Cong Chen

    (Sichuan University)

  • Yang Wang

    (Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE))

  • Jincheng Luo

    (Sichuan University)

  • Zongjin Yi

    (Sichuan University)

  • Jarla Thiesbrummel

    (University of Potsdam
    University of Oxford)

  • Changlei Wang

    (Soochow University)

  • Felix Lang

    (University of Potsdam)

  • Huagui Lai

    (Laboratory for Thin Films and Photovoltaics, Empa-Swiss Federal Laboratories for Materials Science and Technology)

  • Yuliang Xu

    (Sichuan University)

  • Juncheng Wang

    (Sichuan University)

  • Zhihao Zhang

    (Sichuan University)

  • Wenqing Liang

    (Sichuan University)

  • Guangyao Cui

    (Sichuan University)

  • Shengqiang Ren

    (Sichuan University)

  • Xia Hao

    (Sichuan University)

  • Hao Huang

    (Guangxi University)

  • Ye Wang

    (Zhengzhou University)

  • Fang Yao

    (Wuhan University)

  • Qianqian Lin

    (Wuhan University)

  • Lili Wu

    (Sichuan University)

  • Jingquan Zhang

    (Sichuan University)

  • Martin Stolterfoht

    (University of Potsdam)

  • Fan Fu

    (Laboratory for Thin Films and Photovoltaics, Empa-Swiss Federal Laboratories for Materials Science and Technology)

  • Dewei Zhao

    (Sichuan University)

Abstract

The efficiency of all-perovskite tandem solar cells has surpassed that of single-junction perovskite solar cells, yet they still suffer from interfacial non-radiative recombination losses. Charge-selective materials that can reduce such losses as well as fabrication cost “applicable” to both subcells should be developed. Here we design a donor–acceptor-type molecule, MPA2FPh-BT-BA (2F), as a hole-selective contact suitable to both wide-bandgap (WBG) and low-bandgap (LBG) subcells for high-performance all-perovskite tandem solar cells. In the WBG cell, 2F enables efficient hole extraction and minimizes interfacial non-radiative recombination losses by passivating interfacial defects. In the LBG cell, 2F suppresses interfacial losses, regulates the crystal growth and enhances Sn–Pb perovskite film quality. As a result, 2F-treated WBG and LBG devices yield efficiencies of 19.33% (certified 19.09%) and 23.24%, respectively, enabling monolithic all-perovskite tandem solar cells with an efficiency of 27.22% (certified 26.3%) and improved operational stability.

Suggested Citation

  • Jingwei Zhu & Yi Luo & Rui He & Cong Chen & Yang Wang & Jincheng Luo & Zongjin Yi & Jarla Thiesbrummel & Changlei Wang & Felix Lang & Huagui Lai & Yuliang Xu & Juncheng Wang & Zhihao Zhang & Wenqing L, 2023. "A donor–acceptor-type hole-selective contact reducing non-radiative recombination losses in both subcells towards efficient all-perovskite tandems," Nature Energy, Nature, vol. 8(7), pages 714-724, July.
    • Handle: RePEc:nat:natene:v:8:y:2023:i:7:d:10.1038_s41560-023-01274-z
    DOI: 10.1038/s41560-023-01274-z
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    Cited by:

    1. Jin Wen & Yicheng Zhao & Pu Wu & Yuxuan Liu & Xuntian Zheng & Renxing Lin & Sushu Wan & Ke Li & Haowen Luo & Yuxi Tian & Ludong Li & Hairen Tan, 2023. "Heterojunction formed via 3D-to-2D perovskite conversion for photostable wide-bandgap perovskite solar cells," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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