Experimental determination of microwave attenuation and electrical permittivity of double-walled carbon nanotubes

被引：28
作者：
Dragoman, M
Grenier, K
Dubuc, D
Bary, L
Fourn, E
Plana, R
Flahaut, E
机构：
[1] CNRS, LAAS, F-31077 Toulouse 4, France
[2] Natl Res & Dev Inst Microtechnol, Bucharest 077190, Romania
[3] Univ Toulouse 3, CNRS, Ctr Interuniv Rech & Ingn Mat, UMR 5085, F-31062 Toulouse, France
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 15期
关键词：
D O I：
10.1063/1.2193464
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The attenuation and the electrical permittivity of the double-walled carbon nanotubes (DWCNTs) were determined in the frequency range of 1-65 GHz. A micromachined coplanar waveguide transmission line supported on a Si membrane with a thickness of 1.4 mu m was filled with a mixture of DWCNTs. The propagation constants were then determined from the S parameter measurements. The DWCNTs mixture behaves like a dielectric in the range of 1-65 GHz with moderate losses and an abrupt change of the effective permittivity that is very useful for gas sensor detection.
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页数：3
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