Journal
CHEMPHYSCHEM
Volume 12, Issue 9, Pages 1683-1688Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201100098
Keywords
AFM/TEM/SEM; ion-exchange; nanoparticles; glasses; surface-enhanced Raman scattering
Funding
- Deutsche Forschungsgemeinschaft
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We report on the formation of silver subsurface ion-exchanged metal oxide (silver SIMO) glasses and their surface-enhanced Raman scattering (SERS) activity. The samples were prepared by a combined thermal and chemical three-step methodology and characterized by transmission electron microscopy (TEM), atomic force microscopy (AFM), environmental electron scan-ning microscopy (ESEM), and UV/Vis spectroscopy. This unique method provides SERS substrates with protection against contamination and strong, reliable and reproducible SERS enhancement. The Raman enhancement factors of the long-term stable SIMO glasses were estimated to approximately 10(7).
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