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Meniscus-assisted solution printing of large-grained perovskite films for high-efficiency solar cells

Author

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  • Ming He

    (School of Materials Science and Engineering, Georgia Institute of Technology)

  • Bo Li

    (School of Materials Science and Engineering, Georgia Institute of Technology)

  • Xun Cui

    (School of Materials Science and Engineering, Georgia Institute of Technology)

  • Beibei Jiang

    (School of Materials Science and Engineering, Georgia Institute of Technology)

  • Yanjie He

    (School of Materials Science and Engineering, Georgia Institute of Technology)

  • Yihuang Chen

    (School of Materials Science and Engineering, Georgia Institute of Technology)

  • Daniel O’Neil

    (Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology)

  • Paul Szymanski

    (Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology)

  • Mostafa A. EI-Sayed

    (Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology)

  • Jinsong Huang

    (University of Nebraska–Lincoln)

  • Zhiqun Lin

    (School of Materials Science and Engineering, Georgia Institute of Technology)

Abstract

Control over morphology and crystallinity of metal halide perovskite films is of key importance to enable high-performance optoelectronics. However, this remains particularly challenging for solution-printed devices due to the complex crystallization kinetics of semiconductor materials within dynamic flow of inks. Here we report a simple yet effective meniscus-assisted solution printing (MASP) strategy to yield large-grained dense perovskite film with good crystallization and preferred orientation. Intriguingly, the outward convective flow triggered by fast solvent evaporation at the edge of the meniscus ink imparts the transport of perovskite solutes, thus facilitating the growth of micrometre-scale perovskite grains. The growth kinetics of perovskite crystals is scrutinized by in situ optical microscopy tracking to understand the crystallization mechanism. The perovskite films produced by MASP exhibit excellent optoelectronic properties with efficiencies approaching 20% in planar perovskite solar cells. This robust MASP strategy may in principle be easily extended to craft other solution-printed perovskite-based optoelectronics.

Suggested Citation

  • Ming He & Bo Li & Xun Cui & Beibei Jiang & Yanjie He & Yihuang Chen & Daniel O’Neil & Paul Szymanski & Mostafa A. EI-Sayed & Jinsong Huang & Zhiqun Lin, 2017. "Meniscus-assisted solution printing of large-grained perovskite films for high-efficiency solar cells," Nature Communications, Nature, vol. 8(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms16045
    DOI: 10.1038/ncomms16045
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    Cited by:

    1. Sajid, Sajid & Huang, Hao & Ji, Jun & Jiang, Haoran & Duan, Mingjun & Liu, Xin & Liu, Benyu & Li, Meicheng, 2021. "Quest for robust electron transporting materials towards efficient, hysteresis-free and stable perovskite solar cells," Renewable and Sustainable Energy Reviews, Elsevier, vol. 152(C).

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