Graphene-coated ZnO tetrapod whiskers for thermally and electrically conductive epoxy composites

Graphene-coated tetrapod ZnO whisker (T-ZnO) hybrids are fabricated by chemical modification of T-ZnO with an aminosilane, covalent coating with graphene oxide (GO) sheets, and reduction of the GO component by UV irradiation or thermal annealing. Compared to the moderately reduced hybrid by UV irradiation, the thermally annealed hybrid at 1000 °C ([email protected]) is highly efficient in improving both thermal and electrical conductivities of...