Graphene Composites as Efficient Electromagnetic Absorbers in the Extremely High Frequency Band

We report on the synthesis of the epoxy-based composites with graphene fillers and testing their electromagnetic shielding efficiency by the quasi-optic free-space method in the extremely high frequency (EHF) band (220 - 325 GHz). The curing adhesive composites were produced by a scalable technique...

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Veröffentlicht in:	arXiv.org 2020-04
Hauptverfasser:	Barani, Zahra, Kargar, Fariborz, Godziszewski, Konrad, Rehman, Adil, Yashchyshyn, Yevhen, Rumyantsev, Sergey, Cywiński, Grzegorz, Knap, Wojciech, Balandin, Alexander A
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorbers Composite materials Electromagnetic shielding Electromagnetic wave transmission Extremely high frequencies Fillers Frequencies Graphene High frequencies Local area networks Millimeter waves Optical scanners Physics - Applied Physics Physics - Materials Science Physics - Mesoscale and Nanoscale Physics Remote sensors
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Zusammenfassung:	We report on the synthesis of the epoxy-based composites with graphene fillers and testing their electromagnetic shielding efficiency by the quasi-optic free-space method in the extremely high frequency (EHF) band (220 - 325 GHz). The curing adhesive composites were produced by a scalable technique with a mixture of single-layer and few-layer graphene layers of a few-micron lateral dimensions. It was found that the electromagnetic transmission, T, is low even at small concentrations of graphene fillers: T
ISSN:	2331-8422
DOI:	10.48550/arxiv.2004.06026