Electrical performance of carbon nanotube-polymer composites at frequencies up to 220 GHz
Alshehri, AH, Jakubowska, M, Sloma, M, Horaczek, M, Rudka, D, Free, C and Carey, JD (2011) Electrical performance of carbon nanotube-polymer composites at frequencies up to 220 GHz APPLIED PHYSICS LETTERS, 99 (15), ARTN 1. p. 153109.
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We have measured the sub-THz electrical response of screen printed carbon nanotube-poly(methyl methacrylate) polymer composites up to 220 GHz. The measured electrical losses using mm long coplanar waveguide geometries averaged as low as 0.15 dB/mm in the frequency range 40 GHz–110 GHz and showed a reduction in signal loss with increasing frequency; a behaviour opposite to that found in conventional metallic conductors. Between 140 and 220 GHz, the electrical losses averaged 0.28 dB/mm. We show that the low electrical losses are associated with the capacitive coupling between the nanotubes and discuss potential high frequency applications.
|Divisions :||Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre|
|Date :||10 October 2011|
|Identification Number :||10.1063/1.3651278|
|Uncontrolled Keywords :||carbon nanotube composites, high frequency conduction, capacitive coupling, nanotubes, GHz and sub-THz conduction, nanomaterials, nanotubes, antenna materials, carbon nanotubes, sub-THz electrical, screen printed carbon nanotube, carbon nanotube-poly(methyl methacrylate) polymer composites, electrical losses, metallic conductors, the capacitive coupling, microwave materials, microwave materials and applications|
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|Additional Information :||
Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
The following article appeared in Applied Physics Letters, 99 (15) 153109 and may be found at A. H. Alshehri et al., Appl. Phys.Lett. 99, 153109 (2011)
|Depositing User :||Symplectic Elements|
|Date Deposited :||28 Jan 2013 12:01|
|Last Modified :||18 Sep 2014 01:41|
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