Metal-Dielectric-Graphene Sandwich for Surface Enhanced Raman Spectroscopy
arXiv:1407.1129 · doi:10.1039/c4nr02301c
Abstract
Raman intensity of Rhodamine B (RhB) is enhanced by inserting a thin high \k{appa} dielectric layer which reduces the surface plasmon damping at the gold-graphene interface. The results indicate that the Raman intensity increases sharply by plasmonic resonance enhancement while maintaining efficient fluorescence quenching with optimized dielectric layer thickness.
accepted by Nanoscale