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Poster De Conférence Année : 2018

Graphene/AuNps SERS thin films

Hayfa Jeridi
  • Fonction : Auteur
  • PersonId : 1039501
Eric Anglaret
  • Fonction : Auteur
  • PersonId : 995093

Résumé

We explore the preparation and use of graphene dispersions and graphene-nanoparticles composites via wet routes in order to create organized thin films (for passivation, adhesion and design of SERS substrates, see Fig.) At large concentrations, the liquid crystal ordering is an opportunity to spontaneously organize the materials. At lower concentrations, a special care has to be taken during the deposition of the thinnest films. In this work, we have focused on the design and the characterization of thin layers made of graphene oxide and gold nanoparticles (GO/AuNps) for their Surface Enhanced Raman Spectroscopy (SERS) properties. The objective here is to establish the main rules that control (during the deposition) the structure of the films and their resulting SERS properties. We have used various techniques such as dip-coating, spin coating with varying parameters, as well as surface functionalization before deposition. The thin films have been characterized by AFM and their performance have been tested with Raman spectroscopy.
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Dates et versions

hal-01933925 , version 1 (24-11-2018)

Identifiants

  • HAL Id : hal-01933925 , version 1

Citer

Hayfa Jeridi, Camilo Zamora-Ledezma, Eric Anglaret, Christophe Blanc. Graphene/AuNps SERS thin films. Chemontubes2018, Apr 2018, Biarritz, France. ⟨hal-01933925⟩
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