Journal
JOURNAL OF RAMAN SPECTROSCOPY
Volume 43, Issue 4, Pages 588-591Publisher
WILEY
DOI: 10.1002/jrs.3073
Keywords
SERS; microwave absorption; thermal annealing; nanoparticle ink; surface plasmons
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Funding
- Nano-Technology Initiative (NTI) of Southeastern Pennsylvania
- PChem Associate
- NSF [GK-12]
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One of the most widely used methods for surface-enhanced Raman scattering (SERS) employs silver or gold nanoparticles either in colloidal suspension or in the dry-drop form. In such substrates the SERS amplification factors depend critically on the interparticle distances. Here, we report that microwave absorption as a function of temperature in dry-drop substrates can be used as a probe to demarcate temperature regions for thermal annealing to produce SERS substrates with very high amplification factors. Copyright (c) 2011 John Wiley & Sons, Ltd.
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