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Issue 28, 2009
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The effect of surface roughness on the plasmonic response of individual sub-micron gold spheres

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Abstract

Nanoscale surface corrugation strongly determines the plasmonic response of gold nanoparticles with dimensions of several tens of nanometres. Scattering spectra of individual spheres with a rough surface were found to red-shift and broaden. The plasmon modes exhibited quadrupole damping, in contrast to particles with smooth surfaces. Additionally, rougher spheres display a higher SERS activity, which demonstrates the crucial role of nanoscale surface texturing on the plasmonic response of gold particles.

Graphical abstract: The effect of surface roughness on the plasmonic response of individual sub-micron gold spheres

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Article information


Submitted
13 Mar 2009
Accepted
08 Apr 2009
First published
15 May 2009

Phys. Chem. Chem. Phys., 2009,11, 5909-5914
Article type
Paper

The effect of surface roughness on the plasmonic response of individual sub-micron gold spheres

J. Rodríguez-Fernández, A. M. Funston, J. Pérez-Juste, R. A. Álvarez-Puebla, L. M. Liz-Marzán and P. Mulvaney, Phys. Chem. Chem. Phys., 2009, 11, 5909
DOI: 10.1039/B905200N

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