Reduced graphene oxides: light-weight and high-efficiency electromagnetic interference shielding at elevated temperatures

Abstract

Chemical graphitized r-GOs, as the thinnest and lightest material in the carbon family, exhibit high-efficiency electromagnetic interference (EMI) shielding at elevated temperature, attributed to the cooperation of dipole polarization and hopping conductivity. The r-GO composites show different temperature-dependent imaginary permittivities and EMI shielding performances with changing mass ratio.

Keywords: chemical graphitization; electromagnetic shielding; permittivity; reduced graphene oxide; temperature dependence.