Direct growth of vertically aligned single-walled carbon nanotubes on metal tip by applying electric field

Takayuki Koizumi, Masato Ikeda, Daisuke Takagi, Shohei Chiashi, Eiji Rokuta, Chuhei Oshima, Yoshikazu Homma

Research output: Contribution to journalArticle

4 Citations (Scopus)


We investigated single-walled carbon nanotube (SWNT) growth on electrochemically etched W tips by Co/Al catalyst-assisted chemical vapor deposition using ethanol as the carbon source. Vertically aligned SWNTs on the W tip apex were obtained by applying a voltage of 50 V to the W tip during the chemical vapor deposition. Also, we examined the field emission property of the vertically aligned single-walled carbon nanotube tip, and showed that it exhibits a low threshold voltage for electron emission. This growth method is useful for investigating the emission properties of individual SWNTs.

Original languageEnglish
Pages (from-to)6087-6090
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number9 A
Publication statusPublished - 2007 Sep 7



  • Chemical vapor deposition
  • CVD
  • Field emission
  • Single-walled carbon nanotube
  • SWNT

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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