Large-current-controllable carbon nanotube field-effect transistor in electrolyte solution

Miho Myodo, Masafumi Inaba, Kazuyoshi Ohara, Ryogo Kato, Mikinori Kobayashi, Yu Hirano, Kazuma Suzuki, Hiroshi Kawarada

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Large-current-controllable carbon nanotube field-effect transistors (CNT-FETs) were fabricated with mm-long CNT sheets. The sheets, synthesized by remote-plasma-enhanced CVD, contained both single- and double-walled CNTs. Titanium was deposited on the sheet as source and drain electrodes, and an electrolyte solution was used as a gate electrode (solution gate) to apply a gate voltage to the CNTs through electric double layers formed around the CNTs. The drain current came to be well modulated as electrolyte solution penetrated into the sheets, and one of the solution gate CNT-FETs was able to control a large current of over 2.5 A. In addition, we determined the transconductance parameter per tube and compared it with values for other CNT-FETs. The potential of CNT sheets for applications requiring the control of large current is exhibited in this study.

    Original languageEnglish
    Article number213503
    JournalApplied Physics Letters
    Volume106
    Issue number21
    DOIs
    Publication statusPublished - 2015 May 25

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    field effect transistors
    carbon nanotubes
    electrolytes
    electrodes
    transconductance
    titanium
    vapor deposition
    tubes
    electric potential

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Large-current-controllable carbon nanotube field-effect transistor in electrolyte solution. / Myodo, Miho; Inaba, Masafumi; Ohara, Kazuyoshi; Kato, Ryogo; Kobayashi, Mikinori; Hirano, Yu; Suzuki, Kazuma; Kawarada, Hiroshi.

    In: Applied Physics Letters, Vol. 106, No. 21, 213503, 25.05.2015.

    Research output: Contribution to journalArticle

    Myodo, M, Inaba, M, Ohara, K, Kato, R, Kobayashi, M, Hirano, Y, Suzuki, K & Kawarada, H 2015, 'Large-current-controllable carbon nanotube field-effect transistor in electrolyte solution', Applied Physics Letters, vol. 106, no. 21, 213503. https://doi.org/10.1063/1.4921454
    Myodo, Miho ; Inaba, Masafumi ; Ohara, Kazuyoshi ; Kato, Ryogo ; Kobayashi, Mikinori ; Hirano, Yu ; Suzuki, Kazuma ; Kawarada, Hiroshi. / Large-current-controllable carbon nanotube field-effect transistor in electrolyte solution. In: Applied Physics Letters. 2015 ; Vol. 106, No. 21.
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    AU - Suzuki, Kazuma

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