TITLE

Infrared absorption properties of carbon nanotubes synthesized by chemical vapor deposition

AUTHOR(S)
Kouklin, N.; Tzolov, M.; Straus, D.; Yin, A.; Xu, J. M.
PUB. DATE
November 2004
SOURCE
Applied Physics Letters;11/8/2004, Vol. 85 Issue 19, p4463
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present an infrared (IR) optical absorbance study of highly uniform nanotubes grown by chemical vapor deposition in the self-assembled porous matrix in alumina. For unambiguous IR spectral measurement, nanotubes were extracted from their growth template, purified, and evenly dispersed on a reflecting substrate. The findings, which are consistent with previous results from conduction studies, reveal that the nanotubes are semiconducting with a band gap of ∼100 meV. This suggests the potential of nanotube arrays for IR electro-optical device applications.
ACCESSION #
14974947

 

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