Results in Materials (Dec 2020)

Highly reproducible, large scale inkjet-printed Ag nanoparticles-ink SERS substrate

  • Samir Kumar,
  • Kyoko Namura,
  • Daisuke Kumaki,
  • Shizuo Tokito,
  • Motofumi Suzuki

Journal volume & issue
Vol. 8
p. 100139

Abstract

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We report the fabrication of a low-cost, and highly reproducible large scale surface-enhanced Raman spectroscopy (SERS) substrate using an inkjet-printed Ag nanoparticle-ink (AgNI). The AgNI SERS substrates were evaluated for SERS using trans-1,2-bis(4-pyridyl)ethylene (BPY) as a molecular probe. AgNI substrates significantly enhanced the SERS signals with the limit of detection of 1.8 ​× ​10−7 g/mL for BPY. The printed AgNI dot arrays exhibit an excellent SERS performance and reproducibility. The batch-to-batch and spot-to-spot standard deviation value of less than 10% was obtained. The results reveal the reproducibility of the AgNI SERS dot arrays and its potential application for SERS substrates.

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