Tuning of the thermoelectric properties of one-dimensional material networks by electric double layer techniques using ionic liquids

Kazuhiro Yanagi, Shouhei Kanda, Yuki Oshima, Yoshimasa Kitamura, Hideki Kawai, Takahiro Yamamoto, Taishi Takenobu, Yusuke Nakai, Yutaka Maniwa

    Research output: Contribution to journalArticle

    67 Citations (Scopus)

    Abstract

    We report across-bandgap p-type and n-type control over the Seebeck coefficients of semiconducting single-wall carbon nanotube networks through an electric double layer transistor setup using an ionic liquid as the electrolyte. All-around gating characteristics by electric double layer formation upon the surface of the nanotubes enabled the tuning of the Seebeck coefficient of the nanotube networks by the shift in gate voltage, which opened the path to Fermi-level-controlled three-dimensional thermoelectric devices composed of one-dimensional nanomaterials.

    Original languageEnglish
    Pages (from-to)6437-6442
    Number of pages6
    JournalNano Letters
    Volume14
    Issue number11
    DOIs
    Publication statusPublished - 2014 Nov 12

    Fingerprint

    Ionic Liquids
    Seebeck coefficient
    Seebeck effect
    Ionic liquids
    Nanotubes
    nanotubes
    Tuning
    tuning
    Carbon Nanotubes
    liquids
    Fermi level
    Nanostructured materials
    Electrolytes
    Carbon nanotubes
    Transistors
    Energy gap
    transistors
    carbon nanotubes
    electrolytes
    shift

    Keywords

    • electric double layer
    • ionic liquid
    • semiconducting
    • single-wall carbon nanotubes
    • Thermoelectrics

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Bioengineering
    • Chemistry(all)
    • Materials Science(all)
    • Mechanical Engineering

    Cite this

    Yanagi, K., Kanda, S., Oshima, Y., Kitamura, Y., Kawai, H., Yamamoto, T., ... Maniwa, Y. (2014). Tuning of the thermoelectric properties of one-dimensional material networks by electric double layer techniques using ionic liquids. Nano Letters, 14(11), 6437-6442. https://doi.org/10.1021/nl502982f

    Tuning of the thermoelectric properties of one-dimensional material networks by electric double layer techniques using ionic liquids. / Yanagi, Kazuhiro; Kanda, Shouhei; Oshima, Yuki; Kitamura, Yoshimasa; Kawai, Hideki; Yamamoto, Takahiro; Takenobu, Taishi; Nakai, Yusuke; Maniwa, Yutaka.

    In: Nano Letters, Vol. 14, No. 11, 12.11.2014, p. 6437-6442.

    Research output: Contribution to journalArticle

    Yanagi, K, Kanda, S, Oshima, Y, Kitamura, Y, Kawai, H, Yamamoto, T, Takenobu, T, Nakai, Y & Maniwa, Y 2014, 'Tuning of the thermoelectric properties of one-dimensional material networks by electric double layer techniques using ionic liquids', Nano Letters, vol. 14, no. 11, pp. 6437-6442. https://doi.org/10.1021/nl502982f
    Yanagi, Kazuhiro ; Kanda, Shouhei ; Oshima, Yuki ; Kitamura, Yoshimasa ; Kawai, Hideki ; Yamamoto, Takahiro ; Takenobu, Taishi ; Nakai, Yusuke ; Maniwa, Yutaka. / Tuning of the thermoelectric properties of one-dimensional material networks by electric double layer techniques using ionic liquids. In: Nano Letters. 2014 ; Vol. 14, No. 11. pp. 6437-6442.
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