Charge dynamics in transparent single-walled carbon nanotube films from optical transmission measurements

Type: Article

Publication Date: 2006-07-31

Citations: 123

DOI: https://doi.org/10.1103/physrevb.74.045431

Abstract

We report the transmission over a wide frequency range (far infrared - visible) of pristine and hole-doped, free-standing carbon nanotube films at temperatures between 50 K and 300 K. Optical constants are estimated by Kramers-Kronig analysis of transmittance. We see evidence in the far infrared for a gap below 10 meV. Hole doping causes a shift of spectral weight from the first interband transition into the far infrared. Temperature dependence in both the doped and undoped samples is restricted to the far-infrared region.

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  • arXiv (Cornell University) - View - PDF
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  • Physical Review B - View

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