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Surface enhanced Raman scattering from silver nanoparticle arrays on silver mirror films: Plasmon-induced electronic coupling as the enhancement mechanism

Kinnan, Mark K. and Chumanov, George (2007) Surface enhanced Raman scattering from silver nanoparticle arrays on silver mirror films: Plasmon-induced electronic coupling as the enhancement mechanism. JOURNAL OF PHYSICAL CHEMISTRY C, 111 (49). pp. 18010-18017.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp074002i

Abstract

Analysis of surface enhanced Raman scattering spectra from 20 different molecules adsorbed on substrates composed of silver nanoparticles immobilized on silver mirror films revealed competitive Raman enhancement from different types of molecules simultaneously present on the surface. The observed SERS behavior could not be explained using local field enhancement or charge-transfer models. A different SERS mechanism is proposed based on plasmon-induced electronic coupling between the oscillating electrons in the metal and the electronic system of adsorbed molecules. It is suggested that this mechanism has general applicability to other SERS-exhibiting systems.

Item Type:Article
Subjects:Analytical Science > Microscopy and probe methods
Material Science > Nanostructured materials
ID Code:3289
Deposited By:Farnush Anwar
Deposited On:15 Jan 2009 13:27
Last Modified:27 Jan 2009 14:59

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