Efficient field emission from triode-type 1D arrays of carbon nanotubes

Yosuke Shiratori*, Koji Furuichi, Yoshiko Tsuji, Hisashi Sugime, Suguru Noda


研究成果: Article査読

7 被引用数 (Scopus)


Carbon nanotube(CNT) emitters were formed on line-patterned cathodes in microtrenches through a thermal CVD process. Single-walled carbon nanotubes(SWCNTs) self-organized along the trench lines with a submicron inter-CNT spacing. Excellent field emission(FE) properties were obtained: current densities at the anode (Ja) of 1νAcm-2, 10mAcm-2 and 100mAcm-2 were recorded at gate voltages (Vg) of 16, 25 and 36V, respectively. The required voltage difference to gain a 1:10 000 contrast of the anode current was as low as 9V, indicating that a very low operating voltage is possible for these devices. Not only a large number of emission sites but also the optimal combination of trench structure and emitter morphology are crucial to achieve the full FE potential of thin CNTs with a practical lifetime. The FE properties of 1D arrays of CNT emitters and their optimal design are discussed. Self-organization of thin CNTs is an attractive prospect to tailor preferable emitter designs in FE devices.

出版ステータスPublished - 2009 11月 25

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 化学 (全般)
  • 材料科学(全般)
  • 材料力学
  • 機械工学
  • 電子工学および電気工学


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