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. 153109 - 153109. ISSN 0003-6951
Appl. Phys. Lett. 99, 153109 (2011).pdf - Accepted Version
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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.
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 153109 and may be found at A. H. Alshehri et al., Appl. Phys.Lett. 99, 153109 (2011)
|Uncontrolled Keywords:||carbon nanotube composites, high frequency conduction, capacitive coupling, nanotubes, GHz and sub-THz conduction, nanomaterials, nanotubes, antenna materials|
|Divisions:||Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre|
|Depositing User:||Symplectic Elements|
|Date Deposited:||08 Dec 2011 13:24|
|Last Modified:||28 Nov 2013 14:16|
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