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The geometry change of carbon nanofilaments by SF6 incorporation in a thermal chemical vapor deposition system

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2011, 21(3), pp.119-123
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

Kim Sung-Hoon 1

1신라대학교

Accredited

ABSTRACT

Carbon nanofilaments (CNFs) could be synthesized on nickel catalyst layer-deposited silicon oxide substrate using C2H2 and H2 as source gases under thermal chemical vapor deposition system. By the incorporation of SF6 as a cyclic modulation manner, the geometries of carbon coils-related materials, such as nano-sized coil and wave-like nanosized coil could be observed on the substrate. The characteristics (formation density and morphology) of as-grown CNFs with or without SF6 incorporation were investigated. Diameter size reduction for the individual CNFs-related shape and the enhancement of the formation density of CNFs-related material could be achieved by the incorporation of SF6 as a cyclic modulation manner. The cause for these results was discussed in association with the slightly increased etching ability by SF6 addition and the sulfur role in SF6 for the geometry change.

Citation status

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