Conduction mechanism of the bamboo-shaped multiwalled carbon nanotubes

J. W. Jang, S. H. Kim, Cheol Eui Lee, T. J. Lee, Cheol Jin Lee, H. S. Kim, E. H. Kim, S. J. Noh

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Temperature-dependent resistivity measurements were carried out on bamboo-shaped multiwalled carbon nanotubes (BS-MWNTs) vertically grown on cobalt catalyst deposited Al2O3/Ti substrates and iron catalysts deposited SiO2/Ti substrates at 750 - 950 °C by thermal chemical vapor deposition. The resistivity decreased with increasing growth temperature, and showed lower values in the case of SiO2/Ti substrates than in the case of the Al2O3/Ti substrates. A heterogeneous model, compromising quasi 1-D metal terms and the fluctuation-induced tunneling through thin barriers between metallic regions was introduced to explain the conduction mechanism. As a result, it was proposed that the important factor for the conduction mechanism of BS-MWNTs is the inter-sheet conduction by discontinuous graphitic sheets at the compartments.

Original languageEnglish
JournalJournal of the Korean Physical Society
Volume42
Issue numberSUPPL.2
Publication statusPublished - 2003 Feb 1

Fingerprint

carbon nanotubes
conduction
catalysts
electrical resistivity
compartments
cobalt
vapor deposition
iron
temperature
metals

Keywords

  • Bamboo-shape
  • Carbon nanotubes
  • Conduction mechanism

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Jang, J. W., Kim, S. H., Lee, C. E., Lee, T. J., Lee, C. J., Kim, H. S., ... Noh, S. J. (2003). Conduction mechanism of the bamboo-shaped multiwalled carbon nanotubes. Journal of the Korean Physical Society, 42(SUPPL.2).

Conduction mechanism of the bamboo-shaped multiwalled carbon nanotubes. / Jang, J. W.; Kim, S. H.; Lee, Cheol Eui; Lee, T. J.; Lee, Cheol Jin; Kim, H. S.; Kim, E. H.; Noh, S. J.

In: Journal of the Korean Physical Society, Vol. 42, No. SUPPL.2, 01.02.2003.

Research output: Contribution to journalArticle

Jang, JW, Kim, SH, Lee, CE, Lee, TJ, Lee, CJ, Kim, HS, Kim, EH & Noh, SJ 2003, 'Conduction mechanism of the bamboo-shaped multiwalled carbon nanotubes', Journal of the Korean Physical Society, vol. 42, no. SUPPL.2.
Jang, J. W. ; Kim, S. H. ; Lee, Cheol Eui ; Lee, T. J. ; Lee, Cheol Jin ; Kim, H. S. ; Kim, E. H. ; Noh, S. J. / Conduction mechanism of the bamboo-shaped multiwalled carbon nanotubes. In: Journal of the Korean Physical Society. 2003 ; Vol. 42, No. SUPPL.2.
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AU - Kim, H. S.

AU - Kim, E. H.

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