Changing the Behavior of Chromophores from Aggregation-Caused Quenching to Aggregation-Induced Emission: Development of Highly Efficient Light Emitters in the Solid State

Authors

  • Wang Zhang Yuan,

    1. Department of Chemistry Institute of Molecular Functional Materials The Hong Kong University of Science & Technology (HKUST) Clear Water Bay, Kowloon, Hong Kong (P. R. China)
    2. Fok Ying Tung Research Institute Nansha, Guangzhou (P. R. China)
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  • Ping Lu,

    1. Department of Chemistry Institute of Molecular Functional Materials The Hong Kong University of Science & Technology (HKUST) Clear Water Bay, Kowloon, Hong Kong (P. R. China)
    2. Fok Ying Tung Research Institute Nansha, Guangzhou (P. R. China)
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  • Shuming Chen,

    1. Center for Display Research, HKUST Clear Water Bay, Kowloon, Hong Kong (P. R. China)
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  • Jacky W. Y. Lam,

    1. Department of Chemistry Institute of Molecular Functional Materials The Hong Kong University of Science & Technology (HKUST) Clear Water Bay, Kowloon, Hong Kong (P. R. China)
    2. Fok Ying Tung Research Institute Nansha, Guangzhou (P. R. China)
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  • Zhiming Wang,

    1. State Key Laboratory for Supramolecular Structure and Materials Jilin University, Changchun 130023 (P. R. China)
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  • Yang Liu,

    1. Department of Chemistry Institute of Molecular Functional Materials The Hong Kong University of Science & Technology (HKUST) Clear Water Bay, Kowloon, Hong Kong (P. R. China)
    2. Fok Ying Tung Research Institute Nansha, Guangzhou (P. R. China)
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  • Hoi Sing Kwok,

    1. Center for Display Research, HKUST Clear Water Bay, Kowloon, Hong Kong (P. R. China)
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  • Yuguang Ma,

    1. State Key Laboratory for Supramolecular Structure and Materials Jilin University, Changchun 130023 (P. R. China)
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  • Ben Zhong Tang

    Corresponding author
    1. Department of Chemistry Institute of Molecular Functional Materials The Hong Kong University of Science & Technology (HKUST) Clear Water Bay, Kowloon, Hong Kong (P. R. China)
    2. Fok Ying Tung Research Institute Nansha, Guangzhou (P. R. China)
    3. Department of Polymer Science and Engineering Zhejiang University, Hangzhou 310027 (P. R. China)
    • Department of Chemistry Institute of Molecular Functional Materials The Hong Kong University of Science & Technology (HKUST) Clear Water Bay, Kowloon, Hong Kong (P. R. China).
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Abstract

original image

Efficient solid-state emitters developed by a new approach are described. While emission from triphenylamine (TPA) and its dimer (DTPA) is weakened by aggregation, attaching tetraphenylethene (TPE) units to the amines boosts their emission efficiencies up to 100% in the aggregate state without harming their hole-transport properties. The resultant 3TPETPA and 4TPEDTPA luminogens show excellent electroluminescence performance.

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