Journal Article

PreJuSER-53860

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Chemical contribution to surface-enhanced Raman scattering

Persson, B. N. J.FZJ* ; Zhao, K. ; Zhang, Z. Y.

2006
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/1456  doi:10.1103/PhysRevLett.96.207401

Abstract: We present a new mechanism for the chemical contribution to surface-enhanced Raman scattering (SERS). The theory considers the modulation of the polarizability of a metal nanocluster or a flat metal surface by the vibrational motion of an adsorbed molecule. The modulated polarization of the substrate coupled with the incident light will contribute to the Raman scattering enhancement. We show that for a metal cluster and for a flat metal surface this new chemical contribution may enhance the Raman scattering intensity by a factor of similar to 10(2) and similar to 10(4), respectively. The new SERS process is determined by the electric field parallel to the surface of the metal substrate at the molecular binding site.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Theorie I (IFF-TH-I)

Research Program(s):

1. Kondensierte Materie (P54)

Appears in the scientific report 2006
Notes: This version is available at the following Publisher URL: http://prl.aps.org

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