Electroreflectance of “SERS-active” silver electrodes

ALDABE BILMES, S

ELECTROCHIMICA ACTA

PERGAMON-ELSEVIER SCIENCE LTD

Lugar: Amsterdam; Año: 1989 vol. 34 p. 1147 - 1152

0013-4686

Reflectivity spectra of polycrystalline Ag electrodes “activated” for surface enhanced Raman scattering (SERS) by oxidation reduction cycles were measured as a function of potential in 0.1 M KCl and 0.1 M KCl + 50 mM pyridine. They exhibit a broad absorption at ca 3.2 eV due to surface plasmon excitation. No charge transfer absorption in the 300–800 nm wavelength range is found for adsorbed pyridine.1 Permanent address: Universidad Nacional de La Plata, Instituto de Investigaciones Fisico-Quimicas Teoricas y Aplicadas (INIFTA), La Plata, Argentina.