Probing the Structure of Single-Molecule Surface-Enhanced Raman Scattering Hot Spots

We present here a detailed study of the specific nanoparticle structures that give rise to single-molecule surface-enhanced Raman scattering (SMSERS). A variety of structures are observed, but the simplest are dimers of Ag nanocrystals. We chose one of these structures for detailed study using elect...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2008-09, Vol.130 (38), p.12616-12617
Main Authors: Camden, Jon P, Dieringer, Jon A, Wang, Yingmin, Masiello, David J, Marks, Lawrence D, Schatz, George C, Van Duyne, Richard P
Format: Article
Language:English
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Summary:We present here a detailed study of the specific nanoparticle structures that give rise to single-molecule surface-enhanced Raman scattering (SMSERS). A variety of structures are observed, but the simplest are dimers of Ag nanocrystals. We chose one of these structures for detailed study using electrodynamics calculations and found that the electromagnetic SERS enhancement factors of 109 are easily obtained and are consistent with single-molecule SERS activity.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja8051427