Paper
19 May 2012 High-throughput nanostructured SERS substrates by self-assembly
Oded Rabin, Robert M. Briber, Seung Yong Lee, Wonjoo Lee
Author Affiliations +
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%.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Oded Rabin, Robert M. Briber, Seung Yong Lee, and Wonjoo Lee "High-throughput nanostructured SERS substrates by self-assembly", Proc. SPIE 8376, Photonic Microdevices/Microstructures for Sensing IV, 837604 (19 May 2012); https://doi.org/10.1117/12.919364
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KEYWORDS
Surface enhanced Raman spectroscopy

Gold

Nanoparticles

Raman spectroscopy

Surface plasmons

Acquisition tracking and pointing

Resonance enhancement

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