| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5353288 | Applied Surface Science | 2013 | 6 Pages |
Abstract
⺠Pulsed laser ablated Ag thin films were tested as substrates for SERS of organic dyes. ⺠Some dyes were detected at concentration level as low as 10â7 M in aqueous solution. ⺠Different chromophores, brazilin and brazilein in brazilwood, kermesic and carminic acid in carmine lake, alizarin and purpurin in garanza lake were identified. ⺠Higher Raman intensities were observed using the 632.8 nm excitation line, likely due to a pre-resonant effect with dye molecular electronic transitions.
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Authors
E. Fazio, F. Neri, A. Valenti, P.M. Ossi, S. Trusso, R.C. Ponterio,