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

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (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.

Original languageEnglish
Article number475707
Issue number47
Publication statusPublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering


Dive into the research topics of 'Efficient field emission from triode-type 1D arrays of carbon nanotubes'. Together they form a unique fingerprint.

Cite this