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Coherent growth of high-Miller-index facets enhances perovskite solar cells

Author

Listed:
  • Shunde Li

    (Peking University)

  • Yun Xiao

    (University of Oxford)

  • Rui Su

    (Peking University)

  • Weidong Xu

    (University of Cambridge
    University of Cambridge)

  • Deying Luo

    (Beihang University)

  • Pengru Huang

    (National University of Singapore)

  • Linjie Dai

    (University of Cambridge)

  • Peng Chen

    (Peking University)

  • Pietro Caprioglio

    (University of Oxford)

  • Karim A. Elmestekawy

    (University of Oxford)

  • Milos Dubajic

    (University of Cambridge)

  • Cullen Chosy

    (University of Cambridge
    University of Cambridge)

  • Juntao Hu

    (Yunnan University)

  • Irfan Habib

    (University of Oxford)

  • Akash Dasgupta

    (University of Oxford)

  • Dengyang Guo

    (University of Cambridge)

  • Yorrick Boeije

    (University of Cambridge
    University of Cambridge)

  • Szymon J. Zelewski

    (University of Cambridge
    University of Cambridge
    Wrocław University of Science and Technology)

  • Zhangyuchang Lu

    (Peking University)

  • Tianyu Huang

    (Peking University)

  • Qiuyang Li

    (Peking University)

  • Jingmin Wang

    (Nanjing Tech University (NanjingTech))

  • Haoming Yan

    (Peking University)

  • Hao-Hsin Chen

    (Peking University)

  • Chunsheng Li

    (Peking University)

  • Barnaby A. I. Lewis

    (University of Cambridge
    University of Cambridge)

  • Dengke Wang

    (Yunnan University)

  • Jiang Wu

    (Peking University)

  • Lichen Zhao

    (Peking University)

  • Bing Han

    (Eastern Institute of Technology)

  • Jianpu Wang

    (Nanjing Tech University (NanjingTech)
    Changzhou University)

  • Laura M. Herz

    (University of Oxford)

  • James R. Durrant

    (Imperial College London
    University of Swansea)

  • Kostya S. Novoselov

    (National University of Singapore)

  • Zheng-Hong Lu

    (Yunnan University
    University of Toronto)

  • Qihuang Gong

    (Peking University
    Peking University
    Shanxi University)

  • Samuel D. Stranks

    (University of Cambridge
    University of Cambridge)

  • Henry J. Snaith

    (University of Oxford)

  • Rui Zhu

    (Peking University
    Peking University
    Shanxi University)

Abstract

Obtaining micron-thick perovskite films of high quality is key to realizing efficient and stable positive (p)-intrinsic (i)-negative (n) perovskite solar cells1,2, but it remains a challenge. Here we report an effective method for producing high-quality, micron-thick formamidinium-based perovskite films by forming coherent grain boundaries, in which high-Miller-index-oriented grains grow on the low-Miller-index-oriented grains in a stabilized atmosphere. The resulting micron-thick perovskite films, with enhanced grain boundaries and grains, showed stable material properties and outstanding optoelectronic performances. The small-area solar cells achieved efficiencies of 26.1%. The 1-cm2 devices and 5 cm × 5 cm mini-modules delivered efficiencies of 24.3% and 21.4%, respectively. The devices processed in a stabilized atmosphere presented a high reproducibility across all four seasons. The encapsulated devices exhibited superior long-term stability under both light and thermal stressors in ambient air.

Suggested Citation

  • Shunde Li & Yun Xiao & Rui Su & Weidong Xu & Deying Luo & Pengru Huang & Linjie Dai & Peng Chen & Pietro Caprioglio & Karim A. Elmestekawy & Milos Dubajic & Cullen Chosy & Juntao Hu & Irfan Habib & Ak, 2024. "Coherent growth of high-Miller-index facets enhances perovskite solar cells," Nature, Nature, vol. 635(8040), pages 874-881, November.
    • Handle: RePEc:nat:nature:v:635:y:2024:i:8040:d:10.1038_s41586-024-08159-5
    DOI: 10.1038/s41586-024-08159-5
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