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Published in: Journal of Materials Science 34/2020

31-08-2020 | Composites & nanocomposites

Combining carbon nanotube foam with nanosilver/silicone resin or graphene foam for advanced metamaterial design

Authors: Zhenmin Jiao, Dagmar R. D’hooge, Ludwig Cardon, Jun Qiu

Published in: Journal of Materials Science | Issue 34/2020

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Abstract

Advanced metamaterials are designed upon the combination of (1) carbon nanotube (CNT) foam, which is obtained from chemical vapor deposition by fully consuming the initial nickel foam, and (2) nanosilver/silicone resin or graphene (Gr) foam. The CNT foam/nanosilver/silicone composite simultaneously exhibits a negative permittivity and permeability in the frequency range from 1 MHz to 1 GHz provided that the appropriate CNT foam amount is considered (20 m%). Double-negative performance in a similar frequency range is obtained with both 3/1 and 1/1 (mass basis) Gr/CNT-based composites. On the other hand, 3/2 (mass basis) Gr/CNT exhibits a negative permeability in the shared frequency range from 6 × 102 MHz to 1 GHz with still negative permittivity in the full range. The Gr amount allows to control the frequency behavior, with a variation in absolute permittivity and permeability values and a switch between a concave and convex behavior. Hence, the work contributes to the further expanding of the application range of metamaterials.

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Literature
Metadata
Title
Combining carbon nanotube foam with nanosilver/silicone resin or graphene foam for advanced metamaterial design
Authors
Zhenmin Jiao
Dagmar R. D’hooge
Ludwig Cardon
Jun Qiu
Publication date
31-08-2020
Publisher
Springer US
Published in
Journal of Materials Science / Issue 34/2020
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-020-05144-x

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