Tailoring a novel Au nanodot arrays on graphene substrate for a highly active Surface-Enhanced Raman Scattering (SERS)

Kundan Sivashanmugan, Van Huy Nguyen, Ba Son Nguyen

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In this work, gold nanodots (Au NDs) were arrayed on the thin graphene (GR) layer, prepared by chemical vapor deposition, by focused ion beam technique. Following, GR/Au NDs substrates was evaluated of Surface-Enhanced Raman Scattering (SERS) by using rhodamine 6G (R6G) as a molecular probe. As expected, GR/Au NDs significantly enhanced the SERS signals. The limit of detection for R6G was as low as 10−12 M and the Raman enhancement factor was as large as 108 times. GR/Au NDs SERS-active substrate showed a promising technique to enhance the trace detection and quantitative detection of organic contaminants.

Original languageEnglish
Article number127807
JournalMaterials Letters
Volume271
DOIs
Publication statusPublished - 2020 Jul 15

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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