Carbon Nanotube Wiring of Donor–Acceptor Nanograins by Self-Assembly and Efficient Charge Transport

Authors

  • Dr. Tomokazu Umeyama,

    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan), Fax: (+81) 75-383-2571
    2. PRESTO (Japan) Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 (Japan)
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  • Noriyasu Tezuka,

    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan), Fax: (+81) 75-383-2571
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  • Fumiaki Kawashima,

    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan), Fax: (+81) 75-383-2571
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  • Prof. Dr. Shu Seki,

    Corresponding author
    1. PRESTO (Japan) Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 (Japan)
    2. Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871 (Japan)
    • PRESTO (Japan) Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 (Japan)
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  • Prof. Dr. Yoshihiro Matano,

    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan), Fax: (+81) 75-383-2571
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  • Dr. Yoshihide Nakao,

    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan), Fax: (+81) 75-383-2571
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  • Prof. Dr. Tetsuya Shishido,

    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan), Fax: (+81) 75-383-2571
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  • Dr. Masayuki Nishi,

    1. Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan)
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  • Prof. Dr. Kazuyuki Hirao,

    1. Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan)
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  • Dr. Heli Lehtivuori,

    1. Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere (Finland)
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  • Prof. Dr. Nikolai V. Tkachenko,

    Corresponding author
    1. Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere (Finland)
    • Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere (Finland)
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  • Prof. Dr. Helge Lemmetyinen,

    1. Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere (Finland)
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  • Prof. Dr. Hiroshi Imahori

    Corresponding author
    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan), Fax: (+81) 75-383-2571
    2. Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan)
    3. Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103 (Japan)
    • Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan), Fax: (+81) 75-383-2571
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  • H.I. and H. Lemmetyinen thank the strategic international cooperative program with Finland (JST). T.U. is grateful for a Grant-in-Aid from Specific Area Research, MEXT (Japan) (Carbon Nanotube Nano-Electronics), the Murata Science Foundation, and the Noguchi Institute. N.T. thanks the JSPS fellowship for young scientists. H.L., N.V.T., and H.L. thank Academy of Finland.

Abstract

original image

Grain wiring: Functionalized single-wall carbon nanotube wiring between the nanograins of porphyrin (donor)–C60 (acceptor) dyads results in efficient charge transport between them, leading to the highest incident photon-to-current efficiency (22 %) ever reported for analogous photoelectrochemical devices utilizing donor–acceptor linked dyads.

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