Plastic substrates for surface-enhanced Raman scattering

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DOIResolve DOI: http://doi.org/10.1021/jp9038607
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TypeArticle
Journal titleThe Journal Physical Chemistry C
Volume113
Issue40
Pages17296–17300
AbstractThis paper investigates the fabrication of substrates for surface-enhanced Raman scattering (SERS) using hard thermoplastic polymers in conjunction with sputtering and electroless deposition of a thin Au or Ag film. In contrast to silicon or glass, plastic materials promote the replication of nanoscale structures over large areas in a rapid and cost-effective manner using molding or embossing techniques. However, synthetic polymers are Raman-active compounds, providing a source of interference with signals arising from reporter molecules that may be used for SERS detection. Moreover, most plastics melt and undergo degradation when exposed to a focused laser beam, resulting in irreversible loss of the SERS-active metal features in the detection area. We address these issues and show that proper decoration of the plastic surface with a metal overlayer can suppress Raman background signal of the polymer substrate, as well as any adverse effect arising from laser illumination.
Publication date
LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NRC number51092
NPARC number18397765
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Record identifierbc7dba0c-7a85-42d3-81ed-44a3608beb68
Record created2011-08-11
Record modified2017-03-23
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