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Proceedings Paper

High-throughput nanostructured SERS substrates by self-assembly
Author(s): Oded Rabin; Robert M. Briber; Seung Yong Lee; Wonjoo Lee
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Paper Abstract

The fabrication of surface-enhanced Raman spectroscopy (SERS) substrates that are optimized for use with specific laser wavelength - analyte combinations is addressed. In order to achieve large signal enhancement, temporal stability, and reproducibility over large substrate areas at low cost, only self-assembly and templating processes are employed. The resulting substrates consist of arrays of gold nanospheres with controlled diameter and spacing, properties that dictate the optical response of the structure. We demonstrate the tunability of the extended surface plasmon resonance in the range of 520-1000 nm, helping to match the enhancement profile to the laser line of the Raman instrument. Despite relying on self-organization, we obtain site-to-site SERS enhancement factor variations smaller than 10%.

Paper Details

Date Published: 19 May 2012
PDF: 9 pages
Proc. SPIE 8376, Photonic Microdevices/Microstructures for Sensing IV, 837604 (19 May 2012); doi: 10.1117/12.919364
Show Author Affiliations
Oded Rabin, Univ. of Maryland, College Park (United States)
Robert M. Briber, Univ. of Maryland, College Park (United States)
Seung Yong Lee, Univ. of Maryland, College Park (United States)
Korea Institute of Science and Technology (Korea, Republic of)
Wonjoo Lee, Univ. of Maryland, College Park (United States)
LG Chem Ltd. (Korea, Republic of)

Published in SPIE Proceedings Vol. 8376:
Photonic Microdevices/Microstructures for Sensing IV
Xudong Fan; Hai Xiao; Anbo Wang, Editor(s)

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