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

研究成果: Article査読

5 被引用数 (Scopus)


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.

ジャーナルApplied Physics Letters
出版ステータスPublished - 2015 5月 25

ASJC Scopus subject areas

  • 物理学および天文学(その他)


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