Calculation of the SERS Enhancement Factors of Pyridine Molecules Adsorbed on the Substrates of Fe, Co and Ni Using Antenna Resonace Model
LI Jia-wei1,2,BAI Ying1,MO Yu-jun1*,Wachter P3 △
1. Institute of Optics and Photoelectronic Technology, Henan University, Henan Kaifeng 475001, China 2. School of Physics and Information Technology of Shanxi Normal University, Xi’an 710062，China 3. Laboratorium Für Festkrprperphysik，ETH Zürich，8093 Zürich，Switzerland
Abstract：The theory of antenna resonance model is a theory advanced in the investigation of the mechanism of surface enhanced Raman scattering. In the present paper, as a representational example the authors have calculated the enhancement factors of the vibrational mode 1 010 cm-1 of pyridine molecules adsorbed on the metal substrates of Fe, Co and Ni through this model. The dependence of the enhancement factor of Raman scattering on different incident energy at resonance was studied and that on surface roughness of the three metals with the excitation of 0.89 eV was brought forward. As a result, the enhancement factors in visible region are small, but they are rather large (104-107) in infrared region.
Key words：Surface enhanced Raman scattering;Enhancement factor;Antenna resonator;Transition metal
李佳伟1,2,白 莹1,莫育俊1*,Wachter P3△ . 天线共振子理论对吡啶分子在铁钴镍衬底上SERS增强因子的计算[J]. 光谱学与光谱分析, 2006, 26(03): 463-466.
LI Jia-wei1,2,BAI Ying1,MO Yu-jun1*,Wachter P3 △ . Calculation of the SERS Enhancement Factors of Pyridine Molecules Adsorbed on the Substrates of Fe, Co and Ni Using Antenna Resonace Model. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(03): 463-466.
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