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Molecular doping enabled scalable blading of efficient hole-transport-layer-free perovskite solar cells

Author

Listed:
  • Wu-Qiang Wu

    (University of North Carolina
    University of Nebraska–Lincoln)

  • Qi Wang

    (University of North Carolina
    University of Nebraska–Lincoln)

  • Yanjun Fang

    (University of Nebraska–Lincoln)

  • Yuchuan Shao

    (University of North Carolina
    University of Nebraska–Lincoln)

  • Shi Tang

    (University of Nebraska–Lincoln)

  • Yehao Deng

    (University of North Carolina
    University of Nebraska–Lincoln)

  • Haidong Lu

    (University of Nebraska–Lincoln)

  • Ye Liu

    (University of Nebraska–Lincoln)

  • Tao Li

    (University of Nebraska–Lincoln)

  • Zhibin Yang

    (University of North Carolina)

  • Alexei Gruverman

    (University of Nebraska–Lincoln)

  • Jinsong Huang

    (University of North Carolina
    University of Nebraska–Lincoln)

Abstract

The efficiencies of perovskite solar cells (PSCs) are now reaching such consistently high levels that scalable manufacturing at low cost is becoming critical. However, this remains challenging due to the expensive hole-transporting materials usually employed, and difficulties associated with the scalable deposition of other functional layers. By simplifying the device architecture, hole-transport-layer-free PSCs with improved photovoltaic performance are fabricated via a scalable doctor-blading process. Molecular doping of halide perovskite films improved the conductivity of the films and their electronic contact with the conductive substrate, resulting in a reduced series resistance. It facilitates the extraction of photoexcited holes from perovskite directly to the conductive substrate. The bladed hole-transport-layer-free PSCs showed a stabilized power conversion efficiency above 20.0%. This work represents a significant step towards the scalable, cost-effective manufacturing of PSCs with both high performance and simple fabrication processes.

Suggested Citation

  • Wu-Qiang Wu & Qi Wang & Yanjun Fang & Yuchuan Shao & Shi Tang & Yehao Deng & Haidong Lu & Ye Liu & Tao Li & Zhibin Yang & Alexei Gruverman & Jinsong Huang, 2018. "Molecular doping enabled scalable blading of efficient hole-transport-layer-free perovskite solar cells," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04028-8
    DOI: 10.1038/s41467-018-04028-8
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    Cited by:

    1. Xiang, Huimin & Liu, Pengyun & Ran, Ran & Wang, Wei & Zhou, Wei & Shao, Zongping, 2022. "Two-dimensional Dion-Jacobson halide perovskites as new-generation light absorbers for perovskite solar cells," Renewable and Sustainable Energy Reviews, Elsevier, vol. 166(C).
    2. Shariatinia, Zahra, 2020. "Recent progress in development of diverse kinds of hole transport materials for the perovskite solar cells: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 119(C).

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