Morphology and thermoelectric properties of graphene nanosheets enwrapped with polypyrrole

Abstract

With the help of sodium dodecyl sulfate (SDS), uniform polypyrrole (PPy) coatings were conveniently grown on both sides of reduced graphene oxide (rGO) nanosheet surfaces via a template-directed in situ polymerization. The rGO/PPy composites exhibited greatly enhanced thermoelectric performance with a power factor at room temperature of up to 3.01 μW m−1 K−2, which is 84 times greater than that of the pure PPy.