Surface-enhanced Raman scattering from evaporated Ag films: Size of relevant roughness features and range of classical enhancement
โ Scribed by I. Pockrand
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 480 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
Resonance proiilrs UI the errcnauon spectra oi suriace-enhanced Ramsn srgnals irom pyndme on Ag iilms elhlbir a contmuous red-shift with coverage which saturates at 4 10 layers Assummg an electromagnettc origm oi the resonances \e esumate the size oi relevant rouehness features to be 01-Z nm and a decrease of the "class~ca!" enhancement by = IO-100 ior the second layer oi adsorbed molecules
๐ SIMILAR VOLUMES
## SERS from pyridine on an Ag clccrrode is almost complcrely quenched by underpotential deposition of Tl 10 a surface covemgc of J 3%. Removal of Tl by anodic stripping does not restore the original SERS intensity. These results susest that only a small fraction of adsorbed pyridine molecules is