Infrared absorption properties of carbon nanotubes synthesized by chemical vapor deposition

We present an infrared optical absorbance study of highly uniform nanotubes grown by chemical vapor deposition in the self-assembled porous matrix in alumina

N. Kouklin; M. Tzolov; D. Straus; A. Yin; J. M. Xu

2004

Scholarcy highlights

  • We present an infrared optical absorbance study of highly uniform nanotubes grown by chemical vapor deposition in the self-assembled porous matrix in alumina
  • For unambiguous IR spectralmeasurement,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 ∼100meV
  • This suggests the potential of nanotube arrays for IR electro-optical device applications

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