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

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.

Domaines: Optique / photonique

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, 2014, pp.Volume 104, 041912. ⟨10.1063/1.4863824⟩. ⟨ujm-00948962⟩