| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5361118 | Applied Surface Science | 2008 | 4 Pages |
Abstract
Silver nanocrystallites are obtained through immersion of porous silicon samples in AgNO3 solutions and a successive thermal annealing. The efficiency of nanostructures as surface enhanced Raman scattering (SERS) substrates is checked on cyanine-based dyes and horseradish peroxidase, evidencing detectable concentrations as low as 10â7 to 10â8Â M. The substrate efficiency is strictly related to the Ag particle morphology, which could yield to either local surface plasmons (LSP) coupled to individual particles or to inter-particle short-range interaction.
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Authors
F. Giorgis, E. Descrovi, A. Chiodoni, E. Froner, M. Scarpa, A. Venturello, F. Geobaldo,