Journal
CHEMICAL PHYSICS LETTERS
Volume 386, Issue 1-3, Pages 89-94Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2003.12.126
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Catalytic CVD generation of high-purity single-walled carbon nanotubes (SWNTs) without use of an electric furnace or a hot-filament is demonstrated. High-purity SWNTs were generated from alcohol used as a carbon source with Fe/Co particles supported on zeolite by Joule heating of a silicon base plate. This technique was applied for an in situ measurement of Raman scattering during the growth stage in a vacuum chamber equipped with an SPM/Raman detector. The surface temperature was measured by a systematic shift in the silicon signal and kept at 850 degreesC. The G-band intensity of the SWNT Raman spectrum increased nearly linearly with time in the growth stage after an initial rapid increase. (C) 2004 Elsevier B.V. All rights reserved.
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