Graphene-Ag composite film as thermal interface materials

Significant enhancement in thermal diffusivity and thermal conductivity of graphene film, made from individual graphene oxide sheets, can be achieved upon modification with a small amount of Ag nanoparticles. It is readily rationalized in terms of not only the crosslink between the graphene sheets and Ag nanoparticles, but also the chemical intercalation of Ag nanoparticles into the gallery space between graphene basal planes.