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Locally collective hydrogen bonding isolates lead octahedra for white emission improvement

Author

Listed:
  • Bin-Bin Cui

    (Beijing Institute of Technology (BIT)
    School of Chemistry and Chemical Engineering, BIT)

  • Ying Han

    (Beijing Institute of Technology (BIT)
    School of Chemistry and Chemical Engineering, BIT
    School of Materials Science and Engineering, BIT)

  • Bolong Huang

    (The Hong Kong Polytechnic University Hung Hom, Kowloon)

  • Yizhou Zhao

    (School of Materials Science and Engineering, BIT)

  • Xianxin Wu

    (National Center for Nanoscience and Technology
    University of Chinese Academy of Sciences)

  • Lang Liu

    (School of Materials Science and Engineering, BIT)

  • Guangyue Cao

    (Beijing Institute of Technology (BIT)
    School of Materials Science and Engineering, BIT)

  • Qin Du

    (School of Materials Science and Engineering, BIT)

  • Na Liu

    (School of Materials Science and Engineering, BIT)

  • Wei Zou

    (Nanjing Tech University)

  • Mingzi Sun

    (The Hong Kong Polytechnic University Hung Hom, Kowloon)

  • Lin Wang

    (School of Mechatronical Engineering, BIT)

  • Xinfeng Liu

    (National Center for Nanoscience and Technology)

  • Jianpu Wang

    (Nanjing Tech University)

  • Huanping Zhou

    (Peking University)

  • Qi Chen

    (Beijing Institute of Technology (BIT)
    School of Materials Science and Engineering, BIT)

Abstract

As one of next-generation semiconductors, hybrid halide perovskites with tailorable optoelectronic properties are promising for photovoltaics, lighting, and displaying. This tunability lies on variable crystal structures, wherein the spatial arrangement of halide octahedra is essential to determine the assembly behavior and materials properties. Herein, we report to manipulate their assembling behavior and crystal dimensionality by locally collective hydrogen bonding effects. Specifically, a unique urea-amide cation is employed to form corrugated 1D crystals by interacting with bromide atoms in lead octahedra via multiple hydrogen bonds. Further tuning the stoichiometry, cations are bonded with water molecules to create a larger spacer that isolates individual lead bromide octahedra. It leads to zero-dimension (0D) single crystals, which exhibit broadband ‘warm’ white emission with photoluminescence quantum efficiency 5 times higher than 1D counterpart. This work suggests a feasible strategy to modulate the connectivity of octahedra and consequent crystal dimensionality for the enhancement of their optoelectronic properties.

Suggested Citation

  • Bin-Bin Cui & Ying Han & Bolong Huang & Yizhou Zhao & Xianxin Wu & Lang Liu & Guangyue Cao & Qin Du & Na Liu & Wei Zou & Mingzi Sun & Lin Wang & Xinfeng Liu & Jianpu Wang & Huanping Zhou & Qi Chen, 2019. "Locally collective hydrogen bonding isolates lead octahedra for white emission improvement," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13264-5
    DOI: 10.1038/s41467-019-13264-5
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