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Functionalization of perovskite thin films with moisture-tolerant molecules

Author

Listed:
  • Shuang Yang

    (Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology)

  • Yun Wang

    (Centre for Clean Environment and Energy, Gold Coast Campus, Griffith University)

  • Porun Liu

    (Centre for Clean Environment and Energy, Gold Coast Campus, Griffith University)

  • Yi-Bing Cheng

    (Monash University)

  • Hui Jun Zhao

    (Centre for Clean Environment and Energy, Gold Coast Campus, Griffith University)

  • Hua Gui Yang

    (Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology)

Abstract

Organic–inorganic hybrid perovskites are particularly suited as light-harvesting materials in photovoltaic devices. The power conversion efficiency of perovskite solar cells has reached certified values of over 20% in just a few years. However, one of the major hindrances for application of these materials in real-world devices is the performance degradation in humid conditions, leading to a rapid loss of photovoltaic response. Here, we demonstrate that hydrophobic tertiary and quaternary alkyl ammonium cations can be successfully assembled on the perovskite surface as efficient water-resisting layers via a facile surface functionalization technique. Such layers can protect the perovskite film under high relative humidity (90 ± 5%) over 30 days. More importantly, devices based on such films can retain the photovoltaic capacities of bulk perovskites, with power conversion efficiencies over 15%. Improving the humidity tolerance of perovskite materials is a necessary step towards large-scale production of high-performance perovskite-based devices under ambient humidity.

Suggested Citation

  • Shuang Yang & Yun Wang & Porun Liu & Yi-Bing Cheng & Hui Jun Zhao & Hua Gui Yang, 2016. "Functionalization of perovskite thin films with moisture-tolerant molecules," Nature Energy, Nature, vol. 1(2), pages 1-7, February.
    • Handle: RePEc:nat:natene:v:1:y:2016:i:2:d:10.1038_nenergy.2015.16
    DOI: 10.1038/nenergy.2015.16
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    Cited by:

    1. Zhang, Lei & Chen, Zhiqiao & Su, Jing & Li, Jingfa, 2019. "Data mining new energy materials from structure databases," Renewable and Sustainable Energy Reviews, Elsevier, vol. 107(C), pages 554-567.
    2. Xiang, Huimin & Liu, Pengyun & Ran, Ran & Wang, Wei & Zhou, Wei & Shao, Zongping, 2022. "Two-dimensional Dion-Jacobson halide perovskites as new-generation light absorbers for perovskite solar cells," Renewable and Sustainable Energy Reviews, Elsevier, vol. 166(C).

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