Preparation,Optimization, and Characterization of SERS Sensor Substrates Based on Two-Dimensional Structures of Gold Colloid |
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Authors: | Tahereh Makiabadi Audrey Bouvrée Victor Le Nader Hélène Terrisse Guy Louarn |
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Affiliation: | 1.Institut des Matériaux Jean Rouxel (IMN), CNRS,Université de Nantes,Nantes cedex 3,France;2.Shahid Bahonar University of Kerman,Kerman,Iran |
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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. |
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