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Thin single crystal perovskite solar cells to harvest below-bandgap light absorption

Author

Listed:
  • Zhaolai Chen

    (University of Nebraska)

  • Qingfeng Dong

    (University of Nebraska)

  • Ye Liu

    (University of Nebraska)

  • Chunxiong Bao

    (University of Nebraska)

  • Yanjun Fang

    (University of Nebraska)

  • Yun Lin

    (University of Nebraska)

  • Shi Tang

    (University of Nebraska)

  • Qi Wang

    (University of Nebraska)

  • Xun Xiao

    (University of Nebraska)

  • Yang Bai

    (University of Nebraska)

  • Yehao Deng

    (University of Nebraska)

  • Jinsong Huang

    (University of Nebraska
    University of North Carolina)

Abstract

The efficiency of perovskite solar cells has surged in the past few years, while the bandgaps of current perovskite materials for record efficiencies are much larger than the optimal value, which makes the efficiency far lower than the Shockley–Queisser efficiency limit. Here we show that utilizing the below-bandgap absorption of perovskite single crystals can narrow down their effective optical bandgap without changing the composition. Thin methylammonium lead triiodide single crystals with tuned thickness of tens of micrometers are directly grown on hole-transport-layer covered substrates by a hydrophobic interface confined lateral crystal growth method. The spectral response of the methylammonium lead triiodide single crystal solar cells is extended to 820 nm, 20 nm broader than the corresponding polycrystalline thin-film solar cells. The open-circuit voltage and fill factor are not sacrificed, resulting in an efficiency of 17.8% for single crystal perovskite solar cells.

Suggested Citation

  • Zhaolai Chen & Qingfeng Dong & Ye Liu & Chunxiong Bao & Yanjun Fang & Yun Lin & Shi Tang & Qi Wang & Xun Xiao & Yang Bai & Yehao Deng & Jinsong Huang, 2017. "Thin single crystal perovskite solar cells to harvest below-bandgap light absorption," Nature Communications, Nature, vol. 8(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-02039-5
    DOI: 10.1038/s41467-017-02039-5
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    Cited by:

    1. Yurou Zhang & Miaoqiang Lyu & Tengfei Qiu & Ekyu Han & Il Ku Kim & Min-Cherl Jung & Yun Hau Ng & Jung-Ho Yun & Lianzhou Wang, 2020. "Halide Perovskite Single Crystals: Optoelectronic Applications and Strategical Approaches," Energies, MDPI, vol. 13(16), pages 1-27, August.
    2. Yajie Yan & Yingguo Yang & Mingli Liang & Mohamed Abdellah & Tõnu Pullerits & Kaibo Zheng & Ziqi Liang, 2021. "Implementing an intermittent spin-coating strategy to enable bottom-up crystallization in layered halide perovskites," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    3. Jiangang Feng & Xi Wang & Jia Li & Haoming Liang & Wen Wen & Ezra Alvianto & Cheng-Wei Qiu & Rui Su & Yi Hou, 2023. "Resonant perovskite solar cells with extended band edge," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    4. Takeo Oku & Satsuki Kandori & Masaya Taguchi & Atsushi Suzuki & Masanobu Okita & Satoshi Minami & Sakiko Fukunishi & Tomoharu Tachikawa, 2020. "Polysilane-Inserted Methylammonium Lead Iodide Perovskite Solar Cells Doped with Formamidinium and Potassium," Energies, MDPI, vol. 13(18), pages 1-11, September.
    5. Da Liu & Yichu Zheng & Xin Yuan Sui & Xue Feng Wu & Can Zou & Yu Peng & Xinyi Liu & Miaoyu Lin & Zhanpeng Wei & Hang Zhou & Ye-Feng Yao & Sheng Dai & Haiyang Yuan & Hua Gui Yang & Shuang Yang & Yu Hou, 2024. "Universal growth of perovskite thin monocrystals from high solute flux for sensitive self-driven X-ray detection," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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