Abstract
A graphene oxide (GO) and ruthenium(II) complex with bromine-substituted terpyridine ligand, [Ru(Br-terpy)(2)]Cl-2 (Br-terpy: 4'-bromo-2,2':6',2 ''-terpyridine), reacts to form a GO-[Ru(Br-terpy)(2)](2+) hybrid, which after photoreduction turns to the reduced graphene oxide (rGO)-based hybrid rGO-[Ru(Br-terpy)(2)](2+). The hybrids were characterized by UV, IR, and XPS spectra. rGO-[Ru(Br-terpy)(2)](2+) exhibits excellent photocurrent generation through the cathodic photoreduction process. This observation indicates the possibility of designing an rGO-based energy generating material.