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Unveiling the operation mechanism of layered perovskite solar cells

Author

Listed:
  • Yun Lin

    (University of Nebraska-Lincoln)

  • Yanjun Fang

    (University of Nebraska-Lincoln)

  • Jingjing Zhao

    (University of Nebraska-Lincoln)

  • Yuchuan Shao

    (University of North Carolina)

  • Samuel J. Stuard

    (North Carolina State University)

  • Masrur Morshed Nahid

    (North Carolina State University)

  • Harald Ade

    (North Carolina State University)

  • Qi Wang

    (University of North Carolina)

  • Jeffrey E. Shield

    (University of Nebraska-Lincoln
    University of Nebraska-Lincoln)

  • Ninghao Zhou

    (University of North Carolina)

  • Andrew M. Moran

    (University of North Carolina)

  • Jinsong Huang

    (University of Nebraska-Lincoln
    University of North Carolina)

Abstract

Layered perovskites have been shown to improve the stability of perovskite solar cells while its operation mechanism remains unclear. Here we investigate the process for the conversion of light to electrical current in high performance layered perovskite solar cells by examining its real morphology. The layered perovskite films in this study are found to be a mixture of layered and three dimensional (3D)-like phases with phase separations at micrometer and nanometer scale in both vertical and lateral directions. This phase separation is explained by the surface initiated crystallization process and the competition of the crystallization between 3D-like and layered perovskites. We further propose that the working mechanisms of the layered perovskite solar cells involve energy transfer from layered to 3D-like perovskite network. The impact of morphology on efficiency and stability of the hot-cast layered perovskite solar cells are also discussed to provide guidelines for the future improvement.

Suggested Citation

  • Yun Lin & Yanjun Fang & Jingjing Zhao & Yuchuan Shao & Samuel J. Stuard & Masrur Morshed Nahid & Harald Ade & Qi Wang & Jeffrey E. Shield & Ninghao Zhou & Andrew M. Moran & Jinsong Huang, 2019. "Unveiling the operation mechanism of layered perovskite solar cells," Nature Communications, Nature, vol. 10(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08958-9
    DOI: 10.1038/s41467-019-08958-9
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    Cited by:

    1. Xixiang Zhu & Liping Peng & Jinpeng Li & Haomiao Yu & Yulin Xie, 2021. "Formation of a Fast Charge Transfer Channel in Quasi-2D Perovskite Solar Cells through External Electric Field Modulation," Energies, MDPI, vol. 14(21), pages 1-10, November.
    2. 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.
    3. Dejian Yu & Fei Cao & Jinfeng Liao & Bingzhe Wang & Chenliang Su & Guichuan Xing, 2022. "Direct observation of photoinduced carrier blocking in mixed-dimensional 2D/3D perovskites and the origin," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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