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 language | English |
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Pages (from-to) | 145-150 |
Number of pages | 6 |
Journal | Applied Surface Science |
Volume | 249 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - 2005 Aug 15 |
Externally published | Yes |
Keywords
- Carbon nanotubes
- Catalyst nanoparticles
- Chemical vapor deposition
- Growth control
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films