Massive Electrical Conductivity Enhancement of Multilayer Graphene/Polystyrene Composites Using a Nonconductive Filler

摘要

We report a massive increase in the electrical c6nductivity of a multilayer graphene (MLG)/polystyrene composite following the addition of nonconducting silica nano-particles. The nonconducting filler acts as a highly effective dispersiofi aid, preventing the sheedike MLG from restacking or agglbmerating during the solvent casting process used to fabricate the composite. The enhanced dispersion of the MLG leads to orders of magnitude enhancement in electrical conductivity compared to samples without this filler.