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)

Abstract

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
Volume46
Issue number9 A
DOIs
Publication statusPublished - 2007 Sep 7

Fingerprint

Single-walled carbon nanotubes (SWCN)
Chemical vapor deposition
carbon nanotubes
Electric fields
electric fields
Electron emission
Metals
Threshold voltage
Field emission
metals
Ethanol
vapor deposition
Catalysts
Carbon
Electric potential
threshold voltage
low voltage
electron emission
field emission
apexes

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Direct growth of vertically aligned single-walled carbon nanotubes on metal tip by applying electric field. / Koizumi, Takayuki; Ikeda, Masato; Takagi, Daisuke; Chiashi, Shohei; Rokuta, Eiji; Oshima, Chuhei; Homma, Yoshikazu.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 46, No. 9 A, 07.09.2007, p. 6087-6090.

Research output: Contribution to journalArticle

Koizumi, Takayuki ; Ikeda, Masato ; Takagi, Daisuke ; Chiashi, Shohei ; Rokuta, Eiji ; Oshima, Chuhei ; Homma, Yoshikazu. / Direct growth of vertically aligned single-walled carbon nanotubes on metal tip by applying electric field. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2007 ; Vol. 46, No. 9 A. pp. 6087-6090.
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