Issue 34, 2009
From the journal:

Physical Chemistry Chemical Physics

Towards a metrological determination of the performance of SERS media

R. C. Maher,*a   T. Zhang,a   L. F. Cohen,a   J. C. Gallop,a   F. M. Liub  and  M. Greenb  

* Corresponding authors

a The Blackett Laboratory, Imperial College London, Prince Consort Road, London, UK
E-mail: Robert.Maher@imperial.ac.uk

b Department of Electrical and Electronic Engineering, Imperial College London, Exhibition Road, London, UK

Abstract

Enhancement factors under SERS conditions are characterised for two SERS active substrates with different geometries using a combination of optical pumping and photobleaching. A rigorous mathematical method of the photobleaching dynamics under SERS conditions is developed to allow the average enhancement factor to be investigated whilst maximal enhancement factors are studied using optical pumping. We show that both average and maximal enhancements are correlated for the surfaces with average enhancements of ≈108.

Graphical abstract: Towards a metrological determination of the performance of SERS media

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Article information

DOI
https://doi.org/10.1039/B904621F
Article type
Paper
Submitted
05 Mar 2009
Accepted
01 Jun 2009
First published
01 Jul 2009

Phys. Chem. Chem. Phys., 2009,11, 7463-7468

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Towards a metrological determination of the performance of SERS media

R. C. Maher, T. Zhang, L. F. Cohen, J. C. Gallop, F. M. Liu and M. Green, Phys. Chem. Chem. Phys., 2009, 11, 7463 DOI: 10.1039/B904621F

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