Metallic Nanoparticle Arrays: A Common Substrate for Both Surface-Enhanced Raman Scattering and Surface-Enhanced Infrared Absorption
Source abstract
Abstract
Nanoshell arrays have recently been found to possess ideal properties as a substrate for combining surface enhanced raman scattering (SERS) and surface enhanced infrared absorption (SEIRA) spectroscopies, with large field enhancements at the same spatial locations on the structure. For small interparticle distances, the multipolar plasmon resonances of individual nanoshells hybridize and form red-shifted bands, a relatively narrow band in the near-infrared (NIR) originating from quadrupolar nanoshell resonances enhancing SERS, and a very broadband in the mid-infrared (MIR) arising from dipolar resonances enhancing SEIRA. The large field enhancements in the MIR and at longer wavelengths are due to the lightning-rod effect and are well described with an electrostatic model.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Plasmonic and Surface Plasmon Research · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics and Astronomy, M.S. 61, Rice University Houston, Texas 77005
Department of Physics, The University of Texas, Austin, Texas 78712
Department of Chemistry, M.S. 60, Rice University, Houston Texas 77005
Department of Electrical and Computer Engineering, M.S. 366, Rice University, Houston, Texas 77005
Donostia International Physics Center (DIPC) and Centro de Física de Materiales CSIC-UPV/EHU, Paseo Manuel Lardizabal 4, Donostia-San Sebastian 20018, Spain
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