journal article·2017-11-15Open access

Mapping SERS in CB:Au Plasmonic Nanoaggregates

Cloudy Carnegie, Rohit Chikkaraddy, Felix Benz, Bart de Nijs, William M. Deacon, Matthew Horton, Wenting Wang, Charlie Readman, Steven J. Barrow, Oren A. Scherman, Jeremy J. Baumberg

ACS Photonics· Volume 4· Issue 11

Abstract

In order to optimize surface-enhanced Raman scattering (SERS) of noble metal nanostructures for enabling chemical identification of analyte molecules, careful design of nanoparticle structures must be considered. We spatially map the local SERS enhancements across individual microaggregates comprised of monodisperse nanoparticles separated by rigid monodisperse 0.9 nm gaps and show the influence of depositing these onto different underlying substrates. Experiments and simulations show that the gaps between neighboring nanoparticles dominate the SERS enhancement far more than the gaps between nanoparticles and substrate.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Plasmonic and Surface Plasmon Research · Advanced biosensing and bioanalysis techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

NanoPhotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, United Kingdom

Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom

Funding

Engineering and Physical Sciences Research Council · H2020 Marie Sklodowska-Curie Actions · FP7 Ideas: European Research Council · Winton Fund for the Physics of Sustainability · UK National Physical Laboratory

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