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Isothermally Reversible Fluorescence Switching of a Mechanochromic Perylene Bisimide Dye

Authors

  • Norihiro Mizoshita,

    Corresponding author
    1. Toyota Central R&D Laboratories, Inc., Nagakute, Aichi 480-1192, Japan, Fax: (+81)561-63-6498
    2. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
    • Toyota Central R&D Laboratories, Inc., Nagakute, Aichi 480-1192, Japan, Fax: (+81)561-63-6498.
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  • Takao Tani,

    1. Toyota Central R&D Laboratories, Inc., Nagakute, Aichi 480-1192, Japan, Fax: (+81)561-63-6498
    2. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
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  • Shinji Inagaki

    1. Toyota Central R&D Laboratories, Inc., Nagakute, Aichi 480-1192, Japan, Fax: (+81)561-63-6498
    2. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
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Abstract

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Isothermally rewritable fluorescence mechanochromism has been realized for a perylene bisimide dye with bulky and flexible substituents. Fluorescent patterns drawn by mechanical stimuli can be erased by thermal stimuli, treatment with solvent vapors, or spontaneous structural transition from orange-fluorescent to green-fluorescent states. The isothermal fluorescence switching of solid dye films is applicable to displays and sensory materials.

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