Metal-Dielectric-Graphene Sandwich for Surface Enhanced Raman Spectroscopy

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.

arXiv commentaccepted by Nanoscale

References in corpus (5)

• Phonon Linewidths and Electron Phonon Coupling in Nanotubes
• Universal Distance-Scaling of Non-radiative Energy Transfer to Graphene
• Enhanced light-matter interaction in graphene-covered gold nanovoid arrays
• Gold on graphene as a substrate for surface enhanced Raman scattering study
• Raman spectroscopic determination of the length, strength, compressibility, Debye temperature, elasticity, and force constant of the C-C bond in graphene