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Issue 13, 2017
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Anisotropic metal nanoparticles for surface enhanced Raman scattering

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The optimization of the enhancement of Raman scattering by plasmonic effects is largely determined by the properties of the enhancing substrates. The main parameters behind this effect are related to the morphology of plasmonic nanoparticles and their relative distribution within the substrate. We focus this tutorial review on the effects of nanoparticle morphology, for the particular case of anisotropic metal nanoparticles. Anisotropy in silver and gold nanoparticles offers the possibility to tailor their plasmonic properties and intrinsic electromagnetic “hotspots”. We describe the effect of varying particle size and shape on the SERS signal, focusing on the most common anisotropic morphologies used for SERS. Especial emphasis is made on existing comparative studies that shed light on the effect of nanoparticle anisotropy on their enhancement capabilities. We aim at providing a general perspective toward understanding the general key factors and highlighting the difficulty in quantitatively determining SERS performance.

Graphical abstract: Anisotropic metal nanoparticles for surface enhanced Raman scattering

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Article information

02 Mar 2017
First published
27 Apr 2017

Chem. Soc. Rev., 2017,46, 3866-3885
Article type
Tutorial Review

Anisotropic metal nanoparticles for surface enhanced Raman scattering

J. Reguera, J. Langer, D. Jiménez de Aberasturi and L. M. Liz-Marzán, Chem. Soc. Rev., 2017, 46, 3866
DOI: 10.1039/C7CS00158D

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