[Calculation of the SERS enhancement factors of pyridine molecules adsorbed on the substrates of Fe, Co and Ni using antenna resonace model].
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 1010 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 (10(4)-10(7)) in infrared region.
Li
Jia-wei
JW
Institute of Optics and Photoelectronic Technology, Henan University, Henan Kaifeng 475001, China.
Bai
Ying
Y
Mo
Yu-jun
YJ
P
Wachter
W