Porphyrin Molecular Nanodevices Wired Using Single-Walled Carbon Nanotubes

Authors

  • H. Tanaka,

    1. Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
    2. CREST, Japan Science and Technology Corporation, 4-1-8 Hon-machi, Kawaguchi, Saitama 332-0012, Japan
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  • T. Yajima,

    1. Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
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  • T. Matsumoto,

    1. CREST, Japan Science and Technology Corporation, 4-1-8 Hon-machi, Kawaguchi, Saitama 332-0012, Japan
    2. The Institute of Scientific and Industrial Research, Osaka University, 8-1 Miohogaoka, Ibaraki 567-0047, Japan
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  • Y. Otsuka,

    1. The Institute of Scientific and Industrial Research, Osaka University, 8-1 Miohogaoka, Ibaraki 567-0047, Japan
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  • T. Ogawa

    1. Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
    2. CREST, Japan Science and Technology Corporation, 4-1-8 Hon-machi, Kawaguchi, Saitama 332-0012, Japan
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  • This work was supported by Grants-in-Aid for Scientific Research (Nos. 15 201 028 and 14 654 135) from the Ministry of Education, Culture, Sports, Science, and Technology of Japan. One of the authors (HT) thanks Visionarts Inc. and Ishikawa Carbon Foundation for financial support. Supporting Information, including details of the synthesis and UV-vis characterization, is available online from Wiley InterScience or from the author.

Abstract

original image

The electronic properties of porphyrin zinc aggregates wired using single-walled carbon nanotubes (SWNTs) are described. A self-assembled structure is formed by casting a solution of SWNTs and 5,15-bispentylporphyrinato zinc(II) (BPP-Zn) onto a substrate (see figure). Rectifying behavior has been observed at SWNT/BPP-Zn junctions, although no rectification is seen for bare SWNTs. The results show that aggregates of even a few BPP-Zn molecules work as a rectifying device with SWNT wiring.

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