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Flexible all-perovskite tandem solar cells approaching 25% efficiency with molecule-bridged hole-selective contact

Author

Listed:
  • Ludong Li

    (Nanjing University)

  • Yurui Wang

    (Nanjing University)

  • Xiaoyu Wang

    (Jilin University)

  • Renxing Lin

    (Nanjing University)

  • Xin Luo

    (Nanjing University)

  • Zhou Liu

    (Nanjing University)

  • Kun Zhou

    (Jilin University)

  • Shaobing Xiong

    (East China Normal University)

  • Qinye Bao

    (East China Normal University)

  • Gang Chen

    (ShanghaiTech University)

  • Yuxi Tian

    (Nanjing University)

  • Yu Deng

    (Nanjing University)

  • Ke Xiao

    (Nanjing University)

  • Jinlong Wu

    (Nanjing University)

  • Makhsud I. Saidaminov

    (University of Victoria)

  • Hongzhen Lin

    (Chinese Academy of Sciences)

  • Chang-Qi Ma

    (Chinese Academy of Sciences)

  • Zhisheng Zhao

    (Yanshan University)

  • Yingju Wu

    (Yanshan University)

  • Lijun Zhang

    (Jilin University)

  • Hairen Tan

    (Nanjing University)

Abstract

Lightweight flexible perovskite solar cells are promising for building integrated photovoltaics, wearable electronics, portable energy systems and aerospace applications. However, their highest certified efficiency of 19.9% lags behind their rigid counterparts (highest 25.7%), mainly due to defective interfaces at charge-selective contacts with perovskites on top. Here we use a mixture of two hole-selective molecules based on carbazole cores and phosphonic acid anchoring groups to form a self-assembled monolayer and bridge perovskite with a low temperature-processed NiO nanocrystal film. The hole-selective contact mitigates interfacial recombination and facilitates hole extraction. We show flexible all-perovskite tandem solar cells with an efficiency of 24.7% (certified 24.4%), outperforming all types of flexible thin-film solar cell. We also report 23.5% efficiency for larger device areas of 1.05 cm2. The molecule-bridged interfaces enable significant bending durability of flexible all-perovskite tandem solar cells that retain their initial performance after 10,000 cycles of bending at a radius of 15 mm.

Suggested Citation

  • Ludong Li & Yurui Wang & Xiaoyu Wang & Renxing Lin & Xin Luo & Zhou Liu & Kun Zhou & Shaobing Xiong & Qinye Bao & Gang Chen & Yuxi Tian & Yu Deng & Ke Xiao & Jinlong Wu & Makhsud I. Saidaminov & Hongz, 2022. "Flexible all-perovskite tandem solar cells approaching 25% efficiency with molecule-bridged hole-selective contact," Nature Energy, Nature, vol. 7(8), pages 708-717, August.
    • Handle: RePEc:nat:natene:v:7:y:2022:i:8:d:10.1038_s41560-022-01045-2
    DOI: 10.1038/s41560-022-01045-2
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    Cited by:

    1. Yurui Wang & Renxing Lin & Xiaoyu Wang & Chenshuaiyu Liu & Yameen Ahmed & Zilong Huang & Zhibin Zhang & Hongjiang Li & Mei Zhang & Yuan Gao & Haowen Luo & Pu Wu & Han Gao & Xuntian Zheng & Manya Li & , 2023. "Oxidation-resistant all-perovskite tandem solar cells in substrate configuration," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Dongdong Xu & Zhiming Gong & Yue Jiang & Yancong Feng & Zhen Wang & Xingsen Gao & Xubing Lu & Guofu Zhou & Jun-Ming Liu & Jinwei Gao, 2022. "Constructing molecular bridge for high-efficiency and stable perovskite solar cells based on P3HT," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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