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从Fleischmann和Van Duyne等发现了表面增强Raman散射(SERS)效应以来,大量的研究发现多种分子在电极表面、胶体、真空沉积界面均有SERS效应.与普通Raman散射相比,SERS的增强因子可达10~5—10~6.这为电极界面吸附的研究提供有利条件,因此,表面增强Raman光谱是研究表面结构、表面吸附的有力工具.而在SERS机理研究方面已有EM、CTE、表面配合物等理论,但还没有一种理论能圆满地解释各种SERS现象.
Since the discovery of surface enhanced Raman scattering (SERS) by Fleischmann and Van Duyne et al, a large number of studies have found that many kinds of molecules have SERS effects on the electrode surface, colloids and vacuum deposition interface.Compared with ordinary Raman scattering, the enhancement factor of SERS Up to 10 ~ 5-10 ~ 6, which provides favorable conditions for the study of electrode interface adsorption, therefore, surface enhanced Raman spectroscopy is a powerful tool to study the surface structure and surface adsorption.In the study of SERS mechanism, EM, CTE, Surface complexes and other theories, but no one theory can satisfactorily explain the various SERS phenomenon.