Self-assembly of plasmonic nanostructures into superlattices for surface-enhanced Raman scattering applications

摘要

Since the initial discovery that the interparticle nanogaps in nanoparticle aggregates was the surface enhanced Raman scattering (SERS) hotspots that facilitated the enormous enhancements in SERS, the controllable assembly of plasmonic nanoparticles into superstructures is recognized as the most effective strategy for fabricating SERS substrate. The homogenous distribution abundant SERS hotspots inside the self-assembly reproducibly amplify the SERS signal. This ultimately makes SERS an ultrasensitive analytical method with the potential to elicit fundamental chemistry, biology, and physics breakthroughs.