Electron emission properties of carbon nanotubes

Masaaki Hirakawa, Saki Sonoda, Chiaki Tanaka, Hirohiko Murakami, Hiroyuki Yamakawa

研究成果: ジャーナルへの寄稿学術誌査読

50 被引用数 (Scopus)

抄録

We report on the field emission properties of carbon nanotubes, focusing on current density versus electric field (J-F) characteristics and the spacing between the emitter and collector. We grew carbon nanotubes on SUS304, nickel, Inconel-600, and Invar-42 substrates using plasma-enhanced chemical vapor deposition, using methane gas as the carbon source and hydrogen gas as the catalyst and dilution gas. We found that nanotubes grew fastest on Invar-42. Nanotubes were distributed from 50 to 100 nm in diameter and from 1 to 30 μm long. Onset field of the field emission was 0.7 V/μm and the current density was 1 mA/cm2 at an electric field of 3.0 V/μm. A Fowler-Nordheim plot was made. Field enhancement factor β and emission area α were calculated and compared between substrates. Using nickel on quartz glass, carbon nanotubes were selectively fabricated on metal lines on quartz glass.

本文言語英語
ページ(範囲)662-665
ページ数4
ジャーナルApplied Surface Science
169
170
DOI
出版ステータス出版済み - 1月 15 2001
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 凝縮系物理学
  • 物理学および天文学(全般)
  • 表面および界面
  • 表面、皮膜および薄膜

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