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Surface-enhanced Raman scattering from evaporated Ag films: Size of relevant roughness features and range of classical enhancement

โœ Scribed by I. Pockrand


Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
480 KB
Volume
92
Category
Article
ISSN
0009-2614

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โœฆ 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


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Effects of underpotentially deposited TI
โœ T. Watanabe; N. Yanagihara; K. Honda; B. Pettinger; L. Moerl ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 642 KB

## 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