Control of carbon nanotube growth using cobalt nanoparticles as catalyst

Yoon Huh, Malcolm L H Green, Young Heon Kim, Jeong Yong Lee, Cheol Jin Lee

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

We have controllably grown carbon nanotubes using uniformly distributed cobalt nanoparticles as catalyst. Cobalt nanoparticles with a uniform size were synthesized by chemical reaction and colloidal solutions including the cobalt nanoparticles were prepared. The cobalt nanoparticles were uniformly distributed on silicon substrates by a spin-coating method. Carbon nanotubes with a uniform diameter were synthesized on the cobalt nanoparticles by thermal chemical vapor deposition of acetylene gas. The density and vertical alignment of carbon nanotubes could be controlled by adjusting the density of cobalt (Co) nanoparticles.

Original languageEnglish
Pages (from-to)145-150
Number of pages6
JournalApplied Surface Science
Volume249
Issue number1-4
DOIs
Publication statusPublished - 2005 Aug 15
Externally publishedYes

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Keywords

  • Carbon nanotubes
  • Catalyst nanoparticles
  • Chemical vapor deposition
  • Growth control

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Condensed Matter Physics

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