Surface-enhanced Raman scattering

作者：A. Otto, I. Mrozek, H. Grabhorn, Walther Akemann · 发表于：Journal of Physics Condensed Matter · 年份：1992 · DOI：10.1088/0953-8984/4/5/001 · 被引用次数：1435 · 研究领域：Gold and Silver Nanoparticles Synthesis and Applications、Spectroscopy and Quantum Chemical Studies、nanoparticles nucleation surface interactions

On the basis of different types of experiments, the authors develop implicitly the model of surface-enhanced Raman scattering (SERS) of adsorbates on metal surfaces. The long-range enhancement by resonances of the macroscopic laser and Stokes field is separated quantitatively from the metal electron-mediated resonance Raman effect. The latter mechanism proceeds by increased electron-photon coupling at an atomically rough surface and by temporary charge transfer to orbitals of the adsorbates. This model can account for the chemical specificity and vibrational selectivity of SERS and (partly) for the SERS specificity of the various metals.