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Temperature dependent microwave absorption of ultrathin graphene composites

Journal of Materials Chemistry C · 2015 · Vol. 3(38) · pp. 10017–10022
Wen‐Qiang CaoXixi WangJie YuanWenzhong WangMao‐Sheng Cao

Abstract

Ultrathin graphene exhibits highly efficient microwave absorption at elevated temperatures, which is attributed to the cooperation of dipole polarization and hopping conductivity. The ultrathin graphene composites show different dependences on concentrations and temperature towards imaginary permittivity and microwave absorptions.

Electromagnetic wave absorption materialsMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface TechnologiesMaterials scienceGrapheneMicrowavePermittivityDipoleComposite materialConductivityAbsorption (acoustics)Polarization (electrochemistry)Dielectric

Funding

  • National Science Foundation
  • Royal Society
  • Royal Society of Chemistry
  • National Natural Science Foundation of China
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