Microwave shielding of transparent and conducting single-walled carbon nanotube films

Details Microwave shielding of transparent and conducting single-walled carbon nanotube films Microwave shielding of transparent and conducting single-walled carbon nanotube films

2006-11-29

arxiv.org/abs/cond-mat/0611755v2

Appl. Phys. Lett., 90, 183119 (2007)

Physics

Condensed Matter

Materials Science

4 pages, 4 figures

Scientific paper

10.1063/1.2734897

The authors measured the transport properties of single-walled carbon nanotube (SWCNT) films in the microwave frequency range from 10 MHz to 30 GHz by using the Corbino reflection technique from temperatures of 20-400 K. Based on the real and imaginary parts of the microwave conductivity, they calculated the shielding effectiveness for various film thicknesses. Shielding effectiveness of 43 dB at 10 MHz and 28 dB at 10 GHz are found for films with 90% optical transmittance, which suggests that SWCNT films are promising as a type of transparent microwave shielding material. By combining their data with those from the literature, the conductivity of SWCNT films was established in a broad frequency range from dc to visible.

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