Infrared absorption coefficients of vertically aligned carbon nanotube films

H. Ye; X. J. Wang; W. Lin; C. P. Wong; Z. M. Zhang

doi:10.1063/1.4757395

Infrared absorption coefficients of vertically aligned carbon nanotube films

H. Ye, X. J. Wang, W. Lin, C. P. Wong, Z. M. Zhang

Mechanical Engineering

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Abstract

Vertically aligned carbon nanotube (VACNT) films have promising applications in solar cells, radiometers, and photonic devices. We have fabricated VACNT films with thicknesses of 10, 36, 45, and 120 μm on silicon substrates. The absorption coefficient of each film is obtained from the measured regular transmittance from 1 to 19 μm wavelengths, using a ratio method. The degree of alignment of the VACNT films is estimated by comparison of experiments with an analysis based on the effective medium theory. The effect of thickness on the absorption coefficient of the VACNT films is elucidated according to their morphologies.

Original language	English (US)
Article number	141909
Journal	Applied Physics Letters
Volume	101
Issue number	14
DOIs	https://doi.org/10.1063/1.4757395
State	Published - Oct 1 2012

Bibliographical note

Funding Information:
This work was supported by the Department of Energy (DE-FG02-06ER46343). H.Y. acknowledges the support from the National Basic Research Program of China (2009CB939900) and the program of Study Abroad for USTC Sponsored Outstanding Young Teachers.

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Infrared absorption coefficients of vertically aligned carbon nanotube films

Abstract

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