title: Long-term stable silver subsurface ion-exchanged glasses for SERS applications.
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).
authors.affiliation: Department of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany.
authors.forename: Anne
authors.initials: A
authors.lastname: Simo
authors.forename: Virginia
authors.initials: V
authors.lastname: Joseph
authors.forename: Robert
authors.initials: R
authors.lastname: Fenger
authors.forename: Janina
authors.initials: J
authors.lastname: Kneipp
authors.forename: Klaus
authors.initials: K
authors.lastname: Rademann
mesh_terms: D005898:Glass / Q000737:chemistry*; D007474:Ion Exchange; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry; D015203:Reproducibility of Results; D012834:Silver / Q000737:chemistry*; D013059:Spectrum Analysis, Raman / Q000379:methods*; D013499:Surface Properties
chemical_list: D012834:Silver