학술논문
Structure of multiwalled carbon nanotubes grown by chemical vapor deposition.
Document Type
Article
Author
Source
Subject
*STRUCTURAL analysis (Science)
*CARBON nanotubes
*CHEMICAL vapor deposition
*ARGON
*ATMOSPHERE
*BUTANE
*PROPANE
*TRANSMISSION electron microscopy
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Language
ISSN
0020-1685
Abstract
Carbon nanotubes have been grown by chemical vapor deposition at 650°C in an argon atmosphere using a butane-propane mixture and a nickel catalyst and have been characterized by scanning and transmission electron microscopy and Raman spectroscopy. The results indicate that the multiwalled nanotubes have an imperfect graphite-like structure with a conical supramolecular configuration. A phenomenological technique is proposed for statistical analysis of the state of carbon nanotubes in measurements of the intensity of the defect zone D in their Raman spectra. [ABSTRACT FROM AUTHOR]