Long-term stable silver subsurface ion-exchanged glasses for SERS applications

Anne Simo; Virginia Joseph; Robert Fenger; Janina Kneipp; Klaus Rademann

doi:10.1002/cphc.201100098

Long-term stable silver subsurface ion-exchanged glasses for SERS applications

Chemphyschem. 2011 Jun 20;12(9):1683-8. doi: 10.1002/cphc.201100098. Epub 2011 May 27.

Authors

Anne Simo¹, Virginia Joseph, Robert Fenger, Janina Kneipp, Klaus Rademann

Affiliation

¹ Department of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany.

PMID: 21626643
DOI: 10.1002/cphc.201100098

Abstract

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 scanning 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).

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Glass / chemistry*
Ion Exchange
Microscopy, Electron, Transmission
Nanoparticles / chemistry
Reproducibility of Results
Silver / chemistry*
Spectrum Analysis, Raman / methods*
Surface Properties

Substances

Silver