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2D perovskite stabilized phase-pure formamidinium perovskite solar cells

Author

Listed:
  • Jin-Wook Lee

    (University of California)

  • Zhenghong Dai

    (University of California)

  • Tae-Hee Han

    (University of California)

  • Chungseok Choi

    (University of California)

  • Sheng-Yung Chang

    (University of California)

  • Sung-Joon Lee

    (University of California)

  • Nicholas De Marco

    (University of California)

  • Hongxiang Zhao

    (University of California)

  • Pengyu Sun

    (University of California)

  • Yu Huang

    (University of California)

  • Yang Yang

    (University of California)

Abstract

Compositional engineering has been used to overcome difficulties in fabricating high-quality phase-pure formamidinium perovskite films together with its ambient instability. However, this comes alongside an undesirable increase in bandgap that sacrifices the device photocurrent. Here we report the fabrication of phase-pure formamidinium-lead tri-iodide perovskite films with excellent optoelectronic quality and stability. Incorporation of 1.67 mol% of 2D phenylethylammonium lead iodide into the precursor solution enables the formation of phase-pure formamidinium perovskite with an order of magnitude enhanced photoluminescence lifetime. The 2D perovskite spontaneously forms at grain boundaries to protect the formamidinium perovskite from moisture and suppress ion migration. A stabilized power conversion efficiency (PCE) of 20.64% (certified stabilized PCE of 19.77%) is achieved with a short-circuit current density exceeding 24 mA cm−2 and an open-circuit voltage of 1.130 V, corresponding to a loss-in-potential of 0.35 V, and significantly enhanced operational stability.

Suggested Citation

  • Jin-Wook Lee & Zhenghong Dai & Tae-Hee Han & Chungseok Choi & Sheng-Yung Chang & Sung-Joon Lee & Nicholas De Marco & Hongxiang Zhao & Pengyu Sun & Yu Huang & Yang Yang, 2018. "2D perovskite stabilized phase-pure formamidinium perovskite solar cells," Nature Communications, Nature, vol. 9(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05454-4
    DOI: 10.1038/s41467-018-05454-4
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    Cited by:

    1. Lee, Dong-Gun & Pandey, Padmini & Parida, Bhaskar & Ryu, Jun & Cho, SungWon & Kim, Jae-Kwang & Kang, Dong-Won, 2022. "Improving inorganic perovskite photovoltaic performance via organic cation addition for efficient solar energy utilization," Energy, Elsevier, vol. 257(C).
    2. 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.
    3. Nieto-Díaz, Balder A. & Crossland, Andrew F. & Groves, Christopher, 2021. "A levelized cost of energy approach to select and optimise emerging PV technologies: The relative impact of degradation, cost and initial efficiency," Applied Energy, Elsevier, vol. 299(C).
    4. Zhipeng Li & Xiao Wang & Zaiwei Wang & Zhipeng Shao & Lianzheng Hao & Yi Rao & Chen Chen & Dachang Liu & Qiangqiang Zhao & Xiuhong Sun & Caiyun Gao & Bingqian Zhang & Xianzhao Wang & Li Wang & Guangle, 2022. "Ammonia for post-healing of formamidinium-based Perovskite films," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    5. Ali, Nasir & Rauf, Sajid & Kong, Weiguang & Ali, Shahid & Wang, Xiaoyu & Khesro, Amir & Yang, Chang Ping & Zhu, Bin & Wu, Huizhen, 2019. "An overview of the decompositions in organo-metal halide perovskites and shielding with 2-dimensional perovskites," Renewable and Sustainable Energy Reviews, Elsevier, vol. 109(C), pages 160-186.
    6. Xiaopeng Feng & Yuhong He & Wei Qu & Jinmei Song & Wanting Pan & Mingrui Tan & Bai Yang & Haotong Wei, 2022. "Spray-coated perovskite hemispherical photodetector featuring narrow-band and wide-angle imaging," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    7. Raman, Rohith Kumar & Gurusamy Thangavelu, Senthil A. & Venkataraj, Selvaraj & Krishnamoorthy, Ananthanarayanan, 2021. "Materials, methods and strategies for encapsulation of perovskite solar cells: From past to present," Renewable and Sustainable Energy Reviews, Elsevier, vol. 151(C).

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