Energy Transfer: Thermoresponsive Persistent Phosphorescent Color Change Using Efficient Thermally Activated Reverse Energy Transfer with a Large Energy Difference (Advanced Optical Materials 4/2013)

Authors

  • Kenro Totani,

    Corresponding author
    1. Division of Applied Chemistry Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
    • Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Tokyo, Japan
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  • Yuya Okada,

    1. Division of Applied Chemistry Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
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  • Shuzo Hirata,

    Corresponding author
    • Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Tokyo, Japan
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  • Martin Vacha,

    1. Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Tokyo, Japan
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  • Toshiyuki Watanabe

    1. Division of Applied Chemistry Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
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Abstract

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K. Totani, S. Hirata, and co-workers report on page 283 the efficient thermally activated reverse energy transfer from the lower excited state of a donor to the higher excited state of an acceptor when the energy difference between the two excited states is 0.4 eV. This energy transfer results in a temperaturedependent color change with persistent phosphorescence.

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