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Fabrication and SERS properties of Ag/Cu2S composite micro–nanostructures over Cu foil
- Source :
-
Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy . Sep2011, Vol. 79 Issue 5, p1247-1250. 4p. - Publication Year :
- 2011
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Abstract
- Abstract: A new kind of Ag/Cu2S composite micro/nanostructures has been prepared via a convenient galvanic reduction method. SEM images of these micro/nanostructures showed that Ag nanoparticles with the size of around 50–100nm were well deposited on the surface of Cu2S micro/nanostructures. The SEM images also indicated that the Ag nanoparticles were preferentially grown on the big polygonal Cu2S microstructures, which could be explained by a localization of the electrons on the surface of the polygonal Cu2S microstructures after the electron transfer step. Owing to the introduction of Ag nanoparticles on the surface of Cu2S micro/nanostructures, the resulting Ag/Cu2S composite micro–nanostructures could be used as a versatile substrate for surface enhanced Raman scattering. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13861425
- Volume :
- 79
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy
- Publication Type :
- Academic Journal
- Accession number :
- 62557382
- Full Text :
- https://doi.org/10.1016/j.saa.2011.04.050