Electron emission properties of carbon nanotubes

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

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49 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)662-665
Number of pages4
JournalApplied Surface Science
Volume169
Issue number170
DOIs
Publication statusPublished - Jan 15 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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    Hirakawa, M., Sonoda, S., Tanaka, C., Murakami, H., & Yamakawa, H. (2001). Electron emission properties of carbon nanotubes. Applied Surface Science, 169(170), 662-665. https://doi.org/10.1016/S0169-4332(00)00808-4