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Tailoring vertical phase distribution of quasi-two-dimensional perovskite films via surface modification of hole-transporting layer

Author

Listed:
  • Tiefeng Liu

    (Huazhong University of Science and Technology)

  • Youyu Jiang

    (Huazhong University of Science and Technology)

  • Minchao Qin

    (The Chinese University of Hong Kong)

  • Junxue Liu

    (Chinese Academy of Sciences)

  • Lulu Sun

    (Huazhong University of Science and Technology)

  • Fei Qin

    (Huazhong University of Science and Technology)

  • Lin Hu

    (Huazhong University of Science and Technology)

  • Sixing Xiong

    (Huazhong University of Science and Technology)

  • Xueshi Jiang

    (Huazhong University of Science and Technology)

  • Fangyuan Jiang

    (Huazhong University of Science and Technology)

  • Ping Peng

    (Huazhong University of Science and Technology)

  • Shengye Jin

    (Chinese Academy of Sciences)

  • Xinhui Lu

    (The Chinese University of Hong Kong)

  • Yinhua Zhou

    (Huazhong University of Science and Technology)

Abstract

Vertical phase distribution plays an important role in the quasi-two-dimensional perovskite solar cells. So far, the driving force and how to tailor the vertical distribution of layer numbers have been not discussed. In this work, we report that the vertical distribution of layer numbers in the quasi-two-dimensional perovskite films deposited on a hole-transporting layer is different from that on glass substrate. The vertical distribution could be explained by the sedimentation equilibrium because of the colloidal feature of the perovskite precursors. Acid addition will change the precursors from colloid to solution that therefore changes the vertical distribution. A self-assembly layer is used to modify the acidic surface property of the hole-transporting layer that induces the appearance of desired vertical distribution for charge transport. The quasi-two-dimensional perovskite cells with the surface modification display a higher open-circuit voltage and a higher efficiency comparing to reference quasi-two-dimensional cells.

Suggested Citation

  • Tiefeng Liu & Youyu Jiang & Minchao Qin & Junxue Liu & Lulu Sun & Fei Qin & Lin Hu & Sixing Xiong & Xueshi Jiang & Fangyuan Jiang & Ping Peng & Shengye Jin & Xinhui Lu & Yinhua Zhou, 2019. "Tailoring vertical phase distribution of quasi-two-dimensional perovskite films via surface modification of hole-transporting layer," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08843-5
    DOI: 10.1038/s41467-019-08843-5
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    Cited by:

    1. Dongyang Li & Qing Lian & Tao Du & Ruijie Ma & Heng Liu & Qiong Liang & Yu Han & Guojun Mi & Ouwen Peng & Guihua Zhang & Wenbo Peng & Baomin Xu & Xinhui Lu & Kuan Liu & Jun Yin & Zhiwei Ren & Gang Li , 2024. "Co-adsorbed self-assembled monolayer enables high-performance perovskite and organic solar cells," Nature Communications, Nature, vol. 15(1), pages 1-13, December.

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