Photoinduced Dispersibility Tuning of Carbon Nanotubes by a Water-Soluble Stilbene as a Dispersant

Authors

  • Yoko Matsuzawa,

    Corresponding author
    1. Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, 305-8565, Japan
    • Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, 305-8565, Japan.
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  • Haruhisa Kato,

    1. National Metrology Institute of Japan, AIST, Tsukuba Central 5-2, 1-1-1 Higashi Tsukuba, 305-8565, Japan
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  • Harumi Ohyama,

    1. Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, 305-8565, Japan
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  • Daisuke Nishide,

    1. Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, 305-8565, Japan
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  • Hiromichi Kataura,

    1. Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, 305-8565, Japan
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  • Masaru Yoshida

    Corresponding author
    1. Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, 305-8565, Japan
    • Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, 305-8565, Japan.
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Abstract

original image

A water-soluble stilbene derivative with cationic charges enables tuning of the dispersibility of the single-walled carbon nanotubes (SWNTs) in aqueous solution by photoirradiation. The nearly coplanar core of the stilbene dispersant interacts with the SWNTs via ππ interactions, resulting in a stable dispersion of the SWNTs. Photoinduced cyclization for the dispersant-triggered reprecipitation of the SWNTs is due to detachment of the dispersant from SWNTs surfaces.

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