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A Thin-Film Infrared Absorber using CNT/Nanodiamond Nanocomposite

Published online by Cambridge University Press:  07 June 2012

Yu Sui ,
Vikrant J. Gokhale ,
Olga A. Shenderova ,
Gary E. McGuire  and
Mina Rais-Zadeh
Yu Sui
Affiliation:
Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48105, USA
Vikrant J. Gokhale
Affiliation:
Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48105, USA
Olga A. Shenderova
Affiliation:
International Technology Center, Raleigh, NC, 27617, USA
Gary E. McGuire
Affiliation:
International Technology Center, Raleigh, NC, 27617, USA
Mina Rais-Zadeh
Affiliation:
Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48105, USA
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Abstract

This paper reports on the fabrication and characterization of thin-film nanocomposites comprised of tangled carbon nanotubes in a polymer matrix. The concentration of nanotubes in the polymer was significantly increased using detonation nanodiamonds. Nanodiamonds reduce the surface forces between the polymer and the nanotubes and mitigate the agglomeration problem of nanotubes in polymer. This resulted in thinner and more uniform networks that are efficient absorbers of infrared energy over a broad spectrum, ranging from the visible to the mid-wavelength infrared. An infrared absorbance of 97% was achieved for a 1.6 μm thick nanocomposite film across the spectral range of 714 nm to 5 μm. The films are mechanically and thermally stable up to 300 °C, and can be integrated with microbolometers to enhance their responsivity.

Keywords

nanostructurecompositediamond
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1452: Symposium FF – Nanodiamond Particles and Related Materials—From Basic Science to Applications , 2012 , mrss12-1452-ff05-04
Copyright
Copyright © Materials Research Society 2012

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References

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