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Long‐Term Stable Silver Subsurface Ion‐Exchanged Glasses for SERS Applications
Author(s) -
Simo Anne,
Joseph Virginia,
Fenger Robert,
Kneipp Janina,
Rademann Klaus
Publication year - 2011
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201100098
Subject(s) - raman spectroscopy , transmission electron microscopy , raman scattering , environmental scanning electron microscope , scanning electron microscope , materials science , analytical chemistry (journal) , oxide , ion , spectroscopy , nanotechnology , microscopy , chemical engineering , chemistry , optics , chromatography , physics , organic chemistry , engineering , quantum mechanics , metallurgy , composite material
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 .