Metallic conductivity in bamboo-shaped multiwalled carbon nanotubes

J. W. Jang, D. K. Lee, C. E. Lee, T. J. Lee, C. J. Lee, S. J. Noh

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

Temperature-dependent resistivity measurements were carried out on bamboo-shaped multiwalled carbon nanotubes (MWNTs) grown by thermal chemical vapor deposition. They were deposited on Al2O3/Ti and SiO2/Ti substrates using cobalt and iron catalysts, respectively. As a result, a metallic conductivity, i.e. resistivities with a positive temperature slope, was observed for the MWNTs grown on the SiO2/Ti substrates. The different temperature behaviors of the resistivity for the MWNTs grown on different substrates are discussed in view of the substrate morphology and crystallinity.

Original languageEnglish
Pages (from-to)619-622
Number of pages4
JournalSolid State Communications
Volume122
Issue number11
DOIs
Publication statusPublished - 2002 Jun

Bibliographical note

Funding Information:
This work was supported by the Korea Ministry of Science and Technology (National Research Laboratory), the Korea Research Foundation (BK21), and was also supported by Electronics and Telecommunications Research Institute.

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Keywords

  • A. Carbon nanotubes
  • B. Thermal chemical vapor deposition
  • C. Scanning and transmission electron microscopy
  • D. Electronic transport

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry

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