Growth of carbon nanotube arrays using the existing array as a substrate and their Raman characterization

L. F. Sun*, Z. Q. Liu, X. C. Ma, Z. Y. Zhong, S. B. Tang, Z. T. Xiong, D. S. Tang, W. Y. Zhou, X. P. Zou, Y. B. Li, K. L. Tan, S. S. Xie, J. Y. Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

In this Letter, we report that after oxidation in air and reduction in hydrogen the existing carbon nanotube arrays can be used as a substrate to grow another nanotube array. The two arrays are connected through a thin catalyst layer. Micro-Raman study of these two nanotube arrays shows that they have different characteristic spectra. Besides the small shift in the peak frequencies of the two kinds of arrays in Micro-Raman spectra, we have observed changes in the relative intensities of D, G and D lines and proposed the mechanism of this phenomenon.

Original languageEnglish
Pages (from-to)222-226
Number of pages5
JournalChemical Physics Letters
Volume340
Issue number3-4
DOIs
StatePublished - 1 Jun 2001
Externally publishedYes

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