Abstract
A simple experimental method for detecting organic species adsorbed on surfaces by surface-enhanced Raman scattering (SERS) is described. The rough silver surfaces were obtained by vapor deposition of Ag on teflon spheres of uniform size and shape on glass substrates. The spectra obtained from adsorbed phthalic acid, benzoic acid, and nitrobenzoic acid excited by the 514.5 nm substrates. The spectra obtained from adsorbed phthalic acid, benzoic acid, and nitrobenzoic acid these bands were not present and characteristic line spectra were obtained. The reproducibility of the method due to the well-defined roughness of the substrate constitutes a good tool by which theory can be tested.
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