Wide-range optical spectra of carbon nanotubes; a comparative study

Kamarás, Katalin and Pekker, Áron and Bruckner, M. and Borondics, Ferenc (2008) Wide-range optical spectra of carbon nanotubes; a comparative study. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 245. pp. 2229-2232. ISSN 0370-1972

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Abstract

We present optical spectra from the far infrared through the ultraviolet spectral region of freestanding transparent carbon nanotube films: single-, double- and multiwalled, and containing varying amounts of tubes of different chirality. By comparing the spectral features in the far infrared and the near infrared/visible, we can estimate the metallic/semiconducting content. We show by spectroscopic methods that doping the tubes increases both the conductivity and the transparency for visible light.We also discuss the influence of sample preparation and subsequent treatment on application possibilities.

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