Growth behavior of carbon nanotubes on Fe-deposited (001) Si substrates
- 14 May 2001
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 78 (20), 3130-3132
- https://doi.org/10.1063/1.1371787
Abstract
Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) are used to investigate the growth behavior of carbon nanotubes on the Fe-deposited Si (001) substrates by thermal chemical vapor deposition (CVD). The Fe films are deposited for 20 s–20 min by pulse-laser deposition. SEM results show that the growth characteristics of carbon nanotubes strongly depend on the Fe film deposition time. TEM results show that the CVD growth at 800 °C causes the continuous Fe films to be broken up into nanoparticles 10–50 nm across and discontinuous islands 100 nm–1.1 μm in size. It is shown that the Fe nanoparticles are essentially required for the formation of aligned carbon nanotubes. We show direct evidence that a base growth mode is responsible for the growth of carbon nanotubes in the present work.Keywords
This publication has 11 references indexed in Scilit:
- Synthesis and Characterization of Aligned Carbon Nanotube ArraysAdvanced Materials, 1999
- Self-Oriented Regular Arrays of Carbon Nanotubes and Their Field Emission PropertiesScience, 1999
- Growth of highly oriented carbon nanotubes by plasma-enhanced hot filament chemical vapor depositionApplied Physics Letters, 1998
- Synthesis of Large Arrays of Well-Aligned Carbon Nanotubes on GlassScience, 1998
- Carbon nanotubule membranes for electrochemical energy storage and productionNature, 1998
- Large-scale production of single-walled carbon nanotubes by the electric-arc techniqueNature, 1997
- Controlled production of aligned-nanotube bundlesNature, 1997
- Storage of hydrogen in single-walled carbon nanotubesNature, 1997
- Large-Scale Synthesis of Aligned Carbon NanotubesScience, 1996
- Crystalline Ropes of Metallic Carbon NanotubesScience, 1996