Article

Plasmonics

, Volume 5, Issue 1, pp 21-29

First online:

Preparation, Optimization, and Characterization of SERS Sensor Substrates Based on Two-Dimensional Structures of Gold Colloid

  • Tahereh MakiabadiAffiliated withInstitut des Matériaux Jean Rouxel (IMN), CNRS, Université de NantesShahid Bahonar University of Kerman
  • , Audrey BouvréeAffiliated withInstitut des Matériaux Jean Rouxel (IMN), CNRS, Université de Nantes
  • , Victor Le NaderAffiliated withInstitut des Matériaux Jean Rouxel (IMN), CNRS, Université de Nantes
  • , Hélène TerrisseAffiliated withInstitut des Matériaux Jean Rouxel (IMN), CNRS, Université de Nantes
  • , Guy LouarnAffiliated withInstitut des Matériaux Jean Rouxel (IMN), CNRS, Université de Nantes Email author 

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Abstract

Generally, the immobilization of two-dimensional nanoparticles in immersion procedures is time-consuming (over 24 h). In this paper, we report a very effective and simple method to fabricate two-dimensional gold nanoparticle patterns over large areas with high regularity for surface-enhanced Raman scattering (SERS). We achieved a highly sensitive SERS colloid surface by optimizing temperature and immersion time. The surfaces were characterized by X-ray photoelectron spectroscopy, UV–Vis, atomic force microscopy, and scanning electron microscopy. The SERS activity of surfaces was compared by using two techniques: “dip” and “dip and dry” in an aqueous solution of 10−6 M crystal violet. The influence of the morphology of the surface was investigated with both the dip and dip and dry techniques.

Keywords

Gold nanostructures Surface-enhanced Raman scattering SERS Plasmon resonance