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Title: Graphene-based textured surface by pulsed laser deposition as a robust platform for surface enhanced Raman scattering applications

We have developed a surface enhanced Raman scattering (SERS)-active substrate based on gold nanoparticles-decorated few-layer (fl) graphene grown by pulsed laser deposition. Diamond-Like Carbon film has been converted to fl-graphene after thermal annealing at low temperature. The formation of fl-graphene was confirmed by Raman spectroscopy, and surface morphology was highlighted by scanning electron microscopy. We found that textured fl-graphene film with nanoscale roughness was highly beneficial for SERS detection. Rhodamine 6G and p-aminothiophenol proposed as test molecules were detected with high sensitivity. The detection at low concentration of deltamethrin, an active molecule of a commercial pesticide was further demonstrated.
Authors:
; ; ; ; ; ;  [1] ;  [2] ;  [2]
  1. Université de Lyon, F-42023 Saint-Etienne (France)
  2. (France)
Publication Date:
OSTI Identifier:
22280517
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ANNEALING; CONCENTRATION RATIO; DIAMONDS; ENERGY BEAM DEPOSITION; GOLD; GRAPHENE; LASER RADIATION; LAYERS; MOLECULES; MORPHOLOGY; NANOSTRUCTURES; PARTICLES; PULSED IRRADIATION; RAMAN SPECTROSCOPY; ROUGHNESS; SCANNING ELECTRON MICROSCOPY; SUBSTRATES; SURFACES; TEXTURE; THIN FILMS