Affordable Access

Dependence of the single walled carbon nanotube length with growth temperature and catalyst density by chemical vapor deposition.

Authors
  • López, Vicente
  • Welte, Lorena
  • Fernández, Miguel A
  • Moreno-Moreno, Miriam
  • Gómez-Herrero, Julio
  • de Pablo, Pedro J
  • Zamora, Félix
Type
Published Article
Journal
Journal of Nanoscience and Nanotechnology
Publisher
American Scientific Publishers
Publication Date
May 01, 2009
Volume
9
Issue
5
Pages
2830–2835
Identifiers
PMID: 19452937
Source
Medline
License
Unknown

Abstract

We report the growth of isolated single walled carbon nanotubes (SWCNTs) on a silicon surface by chemical vapor deposition, in the temperature range from 800 to 950 degrees C using two different iron catalyst precursors, Fe(NO3)3 x 9H2O and Fe(CO)5. The results show that while for the first catalyst precursor temperature is the key factor in determining nanotube length, for the second it is the density of catalyst precursor on the surface. Solutions of Fe(CO)5 adsorbed on silicon oxide result in a suitable catalyst precursor to obtain SWCNTs of controllable diameter and with clean surfaces.

Report this publication

Statistics

Seen <100 times