Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1249908 | Vibrational Spectroscopy | 2006 | 5 Pages |
Abstract
The potential-dependent surface-enhanced Raman spectrum of adsorbed p-nitrobenzoic acid (PNBA) on the roughened Au electrode has been obtained by using ultraviolet (UV) excitation at 325 nm. The surface-enhanced Raman spectra of PNBA intensely changed when the voltage was in the rang of negative value, and the electrode potential at which the resonance (potential of maximum intensity) occurs varied when the vibrational mode changes, indicating that the PNBA molecules were chemisorbed on the roughened Au surface. The charge transfer (CT) mechanism could probably explain the experiment results in the present work.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Jin Wen Wang, Wei Ning Wang, Yan Fang,