Facile synthesis of flexible graphene–silver composite papers with promising electrical and thermal conductivity performances

Abstract

Free-standing and flexible graphene–silver (GE–Ag) composite paper has been successfully fabricated through an evaporation of graphene oxide–AgNO₃ aqueous aerosol followed by a chemical reduction. The size, thickness and shape of the GE–Ag paper can be tuned according to the Teflon substrate used. The GE–Ag paper presents the advantages of good flexibility, high electrical conductivity (159 Ω per sq) and good thermal conductivity in the vertical direction (3.3 W mK⁻¹), which are more optimal than the pure GE paper.