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Keywords:

  • graphene;
  • surface plasmonic resonance;
  • surface-enhanced raman scattering;
  • conductance;
  • transparent conductors
Thumbnail image of graphical abstract

Plasmonic graphene has been fabricated by G. Xu et al. using thermally assisted self-assembly of Ag nanoparticles on graphene. The localized surface-plasmonic effect is demonstrated with the resonance frequency shifting from 446 to 495 nm when the lateral dimension of the Ag nanopar-ticles increases from about 50 to 150 nm. Both the resonance frequency and amplitude decrease with increasing graphene thickness. In addition, plasmonic graphene shows much improved electrical conductance by a factor of 2–4 as compared to the original graphene.