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

Mircea Dragoman | Zendy; K. Grenier | Zendy; D. Dubuc | Zendy; L. Bary | Zendy; E. Fourn | Zendy; R. Plana | Zendy; Emmanuel Flahaut | Zendy

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

Author(s) -

Mircea Dragoman,

K. Grenier,

D. Dubuc,

L. Bary,

E. Fourn,

R. Plana,

Emmanuel Flahaut

Publication year - 2006

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2193464

Subject(s) - permittivity , carbon nanotube , materials science , attenuation , microwave , dielectric , coplanar waveguide , relative permittivity , electrical resistivity and conductivity , transmission line , optoelectronics , analytical chemistry (journal) , composite material , optics , chemistry , electrical engineering , physics , chromatography , quantum mechanics , engineering

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 µm 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. ©2006 American Institute of Physic

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