We report a class of hybrid nanostructures that can be used as efficient surface-enhancement Raman scattering (SERS) substrates. The metallic core consists of either silver nanowires or gold nanorods, prepared through a chemical reduction process, that are used to capture a model analyte. The silica or titania shell was prepared through a modified Stöber method and consists of patchy or full silica/titania coats. These configurations were used to quantitate/explore (a) the effect of the electromagnetic field at the tips of the nanowire (“hot spots”) in the Raman scattering experiment and (b) their sorption and photocatalytic capabilities.

Hybrid core-shell and coupled nanostructures: Design and applications

249th National Meeting (2015)

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