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

Teddy Tite 1 Christophe Donnet 1 A.-S. Loir 1 Stéphanie Reynaud 1 J.Y. Michalon 1 Francis Vocanson 1 Florence Garrelie 1
1 LHC - Laboratoire Hubert Curien [Saint Etienne]
Abstract : 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.
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Teddy Tite, Christophe Donnet, A.-S. Loir, Stéphanie Reynaud, J.Y. Michalon, et al.. Graphene-based textured surface by pulsed laser deposition as a robust platform for surface enhanced Raman scattering applications. Applied Physics Letters, American Institute of Physics, 2014, pp.Volume 104, 041912. ⟨10.1063/1.4863824⟩. ⟨ujm-00948962⟩

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