Electrical Switching Behavior of a [60]Fullerene-Based Molecular Wire Encapsulated in a Syndiotactic Poly(methyl methacrylate) Helical Cavity

Authors

  • Dr. Shengli Qi,

    Corresponding author
    1. Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603 (Japan)
    2. Present address: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 (China)
    • Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603 (Japan)
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  • Dr. Hiroki Iida,

    1. Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603 (Japan)
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  • Dr. Lili Liu,

    1. Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya 464-8602 (Japan)
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  • Prof. Stephan Irle,

    Corresponding author
    1. Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya 464-8602 (Japan)
    • Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya 464-8602 (Japan)
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  • Prof. Wenping Hu,

    1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Science, Beijing 100190 (China)
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  • Prof. Eiji Yashima

    Corresponding author
    1. Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603 (Japan)
    • Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603 (Japan)
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  • This work was supported by a Grant-in-Aid for Scientific Research (S) from the Japan Society for the Promotion of Science (JSPS), the Knowledge Cluster Initiative “Nagoya Nano-Technology Manufacturing Cluster,” and the Global COE Program “Elucidation and Design of Materials and Molecular Functions” of the Ministry of Education, Culture, Sports, Science, and Technology (Japan). S.Q. thanks the JSPS for a postdoctoral fellowship for foreign researchers (P09252). L.L. thanks the Global COE Program for a doctoral fellowship. S.I. acknowledges support from the CMSI program, MEXT (Japan).

Abstract

original image

Exploding peapods? A helical syndiotactic poly(methyl methacrylate) encapsulates C60 molecules within its helical cavity to form a supramolecular peapod-like molecular wire. Sandwich devices using these molecular wires in the active layer exhibit an irreversible electrical switching effect. Calculations predict a violent Coulomb explosion in the peapod C60 wires during the charge injection process, which would account for the observed irreversible electrical switching.

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