What does this research mean for the field?

Surface-enhanced Raman scattering (SERS) enhancements on nanoshell films follow the plasmon resonance of individual nanoparticles rather than relying heavily on surface roughness, achieving enhancement factors up to 2.5 x 10^10 on silver nanoshells. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

December 17, 2004Open Access

Surface-enhanced Raman scattering on tunable plasmonic nanoparticle substrates

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Abstract

Au and Ag nanoshells are investigated as substrates for surface-enhanced Raman scattering (SERS). We find that SERS enhancements on nanoshell films are dramatically different from those observed on colloidal aggregates, specifically that the Raman enhancement follows the plasmon resonance of the individual nanoparticles. Comparative finite difference time domain calculations of fields at the surface of smooth and roughened nanoshells reveal that surface roughness contributes only slightly to the total enhancement. SERS enhancements as large as 2.5 x 10(10) on Ag nanoshell films for the nonresonant molecule p-mercaptoaniline are measured.

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Jackson et al. (Fri,) studied this question.

synapsesocial.com/papers/6a0ac3656f9280a32b5cf505 https://doi.org/https://doi.org/10.1073/pnas.0408319102

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