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A prenucleation strategy for ambient fabrication of perovskite solar cells with high device performance uniformity

Author

Listed:
  • Kai Zhang

    (Peking University)

  • Zheng Wang

    (Peking University)

  • Gaopeng Wang

    (Peking University)

  • Jian Wang

    (Peking University)

  • Yu Li

    (Peking University)

  • Wei Qian

    (Peking University)

  • Shizhao Zheng

    (Peking University)

  • Shuang Xiao

    (Peking University)

  • Shihe Yang

    (Peking University)

Abstract

Humidity is known to be inimical to the halide perovskites and thus typically avoided during fabrication. The poor fundamental understanding of chemical interactions between water and the precursors hampers the further development of perovskite fabrication in ambient atmosphere. Here, we disclose a key finding that the ambient water could promote the formation of lead complexes, which when uncontrolled would make their way into large intermediate fibrillar crystallites and thus discontinuous perovskite films unfavorable for photovoltaics among others. To counter this effect, a prenucleation strategy is proposed, which embodies the controlled burst of profuse intermediate nuclei. Consequently, we are able to obtain a compact and uniform perovskite layer, which affords high efficiency perovskite solar cells. More excitingly, the solar cells show high performance uniformity, demonstrating the distinctive advantages of our prenucleation strategy. This work sheds light on developing reliable and cost-effective fabrication methods for industrial production of perovskite solar cells.

Suggested Citation

  • Kai Zhang & Zheng Wang & Gaopeng Wang & Jian Wang & Yu Li & Wei Qian & Shizhao Zheng & Shuang Xiao & Shihe Yang, 2020. "A prenucleation strategy for ambient fabrication of perovskite solar cells with high device performance uniformity," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
  • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-14715-0
    DOI: 10.1038/s41467-020-14715-0
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    Cited by:

    1. Fangfang Wang & Mubai Li & Qiushuang Tian & Riming Sun & Hongzhuang Ma & Hongze Wang & Jingxi Chang & Zihao Li & Haoyu Chen & Jiupeng Cao & Aifei Wang & Jingjin Dong & You Liu & Jinzheng Zhao & Ying C, 2023. "Monolithically-grained perovskite solar cell with Mortise-Tenon structure for charge extraction balance," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Mubai Li & Riming Sun & Jingxi Chang & Jingjin Dong & Qiushuang Tian & Hongze Wang & Zihao Li & Pinghui Yang & Haokun Shi & Chao Yang & Zichao Wu & Renzhi Li & Yingguo Yang & Aifei Wang & Shitong Zhan, 2023. "Orientated crystallization of FA-based perovskite via hydrogen-bonded polymer network for efficient and stable solar cells," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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