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Robust metal ion-chelated polymer interfacial layer for ultraflexible non-fullerene organic solar cells

Author

Listed:
  • Fei Qin

    (Huazhong University of Science and Technology)

  • Wen Wang

    (Huazhong University of Science and Technology)

  • Lulu Sun

    (Huazhong University of Science and Technology)

  • Xueshi Jiang

    (Huazhong University of Science and Technology)

  • Lin Hu

    (Huazhong University of Science and Technology)

  • Sixing Xiong

    (Huazhong University of Science and Technology)

  • Tiefeng Liu

    (Huazhong University of Science and Technology)

  • Xinyun Dong

    (Huazhong University of Science and Technology)

  • Jing Li

    (Huazhong University of Science and Technology)

  • Youyu Jiang

    (Huazhong University of Science and Technology)

  • Jianhui Hou

    (Chinese Academy of Sciences)

  • Kenjiro Fukuda

    (RIKEN)

  • Takao Someya

    (RIKEN
    The University of Tokyo)

  • Yinhua Zhou

    (Huazhong University of Science and Technology)

Abstract

Achieving high power conversion efficiency and good mechanical robustness is still challenging for the ultraflexible organic solar cells. Interlayers simultaneously having good mechanical robustness and good chemical compatibility with the active layer are highly desirable. In this work, we present an interlayer of Zn2+-chelated polyethylenimine (denoted as PEI-Zn), which can endure a maximum bending strain over twice as high as that of ZnO and is chemically compatible with the recently emerging efficient nonfullerene active layers. On 1.3 μm polyethylene naphthalate substrates, ultraflexible nonfullerene solar cells with the PEI-Zn interlayer display a power conversion efficiency of 12.3% on PEDOT:PSS electrodes and 15.0% on AgNWs electrodes. Furthermore, the ultraflexible cells show nearly unchanged power conversion efficiency during 100 continuous compression-flat deformation cycles with a compression ratio of 45%. At the end, the ultraflexible cell is demonstrated to be attached onto the finger joint and displays reversible current output during the finger bending-spreading.

Suggested Citation

  • Fei Qin & Wen Wang & Lulu Sun & Xueshi Jiang & Lin Hu & Sixing Xiong & Tiefeng Liu & Xinyun Dong & Jing Li & Youyu Jiang & Jianhui Hou & Kenjiro Fukuda & Takao Someya & Yinhua Zhou, 2020. "Robust metal ion-chelated polymer interfacial layer for ultraflexible non-fullerene organic solar cells," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-18373-0
    DOI: 10.1038/s41467-020-18373-0
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    Cited by:

    1. Xue Lai, & Shiyan Chen, & Xiaoyu Gu, & Hanjian Lai, & Yunpeng Wang, & Yulin Zhu, & Hui Wang, & Jianfei Qu, & Aung Ko Ko Kyaw & Haiping Xia & Feng He, 2023. "Phenanthroline-carbolong interface suppress chemical interactions with active layer enabling long-time stable organic solar cells," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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