Journal Highlight: Glass nanopillar arrays with nanogap-rich silver nanoislands for highly intense SERS

Glass nanopillar arrays with nanogap-rich silver nanoislands for highly intense surface enhanced Raman scattering

Advanced Materials, 2012, 24, 2234-2237
Young-Jae Oh, Ki-Hun Jeong

Abstract: The enhancement of surface enhanced Raman scattering (SERS) with nanogap-rich silver nanoislands surrounding glass nanopillars at wafer level is reported. High-density hot spots are generated by increasing the number of nanogap-rich nanoislands within a detection volume. The SERS substrate shows a high enhancement factor of over 107 with excellent signal uniformity (∼7.8%) and it enables the label-free detection of aqueous DNA base molecules at nanomolar level.

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