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Radical Polymer-Wrapped SWNTs at a Molecular Level: High-Rate Redox Mediation Through a Percolation Network for a Transparent Charge-Storage Material

Authors

  • Wonsung Choi,

    1. Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
    2. Department of Nanobio Materials and Electronics (WCU), Gwangju Institute of Science and Technology(GIST), Gwangju 500-712, South Korea
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  • Shota Ohtani,

    1. Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
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  • Kenichi Oyaizu,

    1. Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
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  • Hiroyuki Nishide,

    Corresponding author
    1. Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
    2. Department of Nanobio Materials and Electronics (WCU), Gwangju Institute of Science and Technology(GIST), Gwangju 500-712, South Korea
    • Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
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  • Kurt E. Geckeler

    Corresponding author
    1. Department of Nanobio Materials and Electronics (WCU), Gwangju Institute of Science and Technology(GIST), Gwangju 500-712, South Korea
    • Department of Nanobio Materials and Electronics (WCU), Gwangju Institute of Science and Technology(GIST), Gwangju 500-712, South Korea.
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Abstract

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A transparent nanocomposite of a radical polymer, the poly(2,2,6,6-tetramethylpiperidine-1-oxy-4-yl methacrylate) (PTMA), and single-walled carbon nanotubes (SWNTs) display a reversible charging and discharging, allowing for full discharging in seconds. This is ascribed to the reversible electrochemical reaction of the pendant radical group in PTMA aided by both PTMA wrapping at a molecular level and the SWNT network for electrical conduction.

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