Role of thin Fe catalyst in the synthesis of double- And single-wall carbon nanotubes via microwave chemical vapor deposition

Y. Y. Wang, S. Gupta, R. J. Nemanich

Research output: Contribution to journalArticle

99 Scopus citations

Abstract

The synthesis of aligned single- and the double-wall carbon nanotubes (CNT) was presented using microwave plasma-assisted chemical vapor deposition with C 2H 2/NH 3 gas mixture. The double- and single-wall carbon nanotubes with diameters ranging from 1 to 5 nm were identified using transmission electron microscopy and Raman spectroscopy. It was found that the higher deposition temperature with a controlled Fe catalyst and rapid growth allows growth of well-graphitized, high areal density nanotubes with reduced amorphous carbon and iron. The results show that the base growth is appropriate model to describe the growth mechanism for the nanotube films.

Original languageEnglish (US)
Pages (from-to)2601-2603
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number13
DOIs
StatePublished - Sep 27 2004
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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