Plasmonic nanostructures are of considerable interest due to their unique mechanism for light interaction and the considerable number of applications that result from, or are enhanced by, these interactions. Extensive work has been reported on the synthesis, modeling, and utilization of various morphologies of plasmonic structures. Here, the synthesis of Ag:SiO2:Ag core:spacer:shell (CSS) particles of varying geometries is reported. CSS synthesis utilizes an adaptation of the hydrogen reduction method and results in highly crystalline particles free of surface-modifying groups. Extinction efficiencies of the composite CSS particles as well as the effect of varying shell and spacer thicknesses on the relative ratio of the scattering and absorptive plasmon relaxation modes are reported. Likewise, the relationship between CSS particle geometry and SERS enhancement factor is explored.

Synthesis of Ag:SiO<sub>2</sub>:Ag core:spacer:shell nanoparticles via the hydrogen reduction method and characterization of their optical properties

247th National Meeting (2014)

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Synthesis of Ag:SiO2:Ag core:spacer:shell nanoparticles via the hydrogen reduction method and characterization of their optical properties

Synthesis of Ag:SiO₂:Ag core:spacer:shell nanoparticles via the hydrogen reduction method and characterization of their optical properties