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Proceedings Paper

Engineering nanostructures for single-molecule surface-enhanced Raman spectroscopy
Author(s): Martin Moskovits; Dae-Hong Jeong; Tsachi Livneh; Yiying Wu; Galen D. Stucky
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Paper Abstract

Surface enhanced Raman spectroscopy (SERS), an effect discovered in the 1970s and studied systematically in the 1980s, received a significant "second wind" with the report (primarily by Nie and by Kneipp) of enhancements large enough to allow the Raman spectrum of single molecules to be obtained. It is now understood that this occurs as a result of the extremely high electromagnetic fields that can exist at appropriately configured gaps and interstices between nanoparticles and other nanostructures composed of suitable materials (such as silver). With this insight one is now in a position to fabricate structures that will dependably and repeatably produce single-molecule SERS. We describe three such strategies: using molecular linkers to self assemble silver clusters possessing the correct geometry; fabricating nanowire rafts in which the gap between nanowires are "hot"; and structuring the interior of nanopores so as to produce finely-architectured nanostructured arrays.

Paper Details

Date Published: 29 December 2004
PDF: 8 pages
Proc. SPIE 5593, Nanosensing: Materials and Devices, (29 December 2004); doi: 10.1117/12.571794
Show Author Affiliations
Martin Moskovits, Univ. of California/Santa Barbara (United States)
Dae-Hong Jeong, Univ. of California/Santa Barbara (United States)
Tsachi Livneh, Univ. of California/Santa Barbara (United States)
Yiying Wu, Univ. of California/Santa Barbara (United States)
Galen D. Stucky, Univ. of California/Santa Barbara (United States)

Published in SPIE Proceedings Vol. 5593:
Nanosensing: Materials and Devices
M. Saif Islam; Achyut K. Dutta, Editor(s)

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