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Color-Tunable Solid-State Emission of 2,2′-Biindenyl-Based Fluorophores

Authors

  • Zhiyun Zhang,

    1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237 (P.R. China)
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  • Bo Xu,

    1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237 (P.R. China)
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  • Prof. Dr. Jianhua Su,

    1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237 (P.R. China)
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  • Leiping Shen,

    1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237 (P.R. China)
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  • Prof. Dr. Yongshu Xie,

    1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237 (P.R. China)
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  • Prof. Dr. He Tian

    Corresponding author
    1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237 (P.R. China)
    • Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237 (P.R. China)
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  • This work was supported by NSFC/China (20972053) and the National Basic Research 973 Program (2011CB808400). Z.Z. thanks Dr. Z.-Y. Xia, Dr. J.-H. Huang, and Dr. X. Li for the helpful discussion.

Abstract

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A colorful bunch: Dyes based on 2,2′-biindenyl fluorophores exhibit tunable solid-state emission colors that cover the whole visible region from blue to red. The nonplanar conformation of the dyes in crystals result in bright deep-blue emission for 13, and green emission for 4. Furthermore, the two crystalline forms of BDY-IN (BDY-O and BDY-R) exhibit different optical properties.

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