Enhanced plasmon radiative intensity from Ag nanoparticles coupled to a graphene sheet

A hybrid structure composed of Agnanoparticles and graphene sheets has been synthesized by one-pot co-reduction process at room temperature. Compared to the isolated Agnanoparticles, the presence of graphene enhanced the photoluminescence originating from the plasmon radiative decay of Agnanoparticles as results of the charge injection and the near-field confinement resulting from the coupled graphene sheets.