期刊
CHINESE JOURNAL OF CHEMICAL PHYSICS
卷 23, 期 5, 页码 596-602出版社
CHINESE PHYSICAL SOC
DOI: 10.1088/1674-0068/23/05/596-602
关键词
Silver; Dendritic nanostructure; Electrodeposition; Surface enhanced Raman scattering
资金
- National Natural Science Foundation of China [10574122, 50772110, 50721091]
- National Basic Research Program of China [2006CB922000, 2007CB925202, 2009CB939901]
Ag dendritic nanostructures were synthesized on fluorine-doped tin oxide covered glass substrates by the electrodeposition method. Results demostrate that the size, diameter, crystallinity, and branch density of the Ag dendrites can be controlled by the applied potential, the surfactants and the concentration of AgNO3. Three kinds of typical silver dendrites were applied as substrates of the surface enhanced Raman scattering (SERS) and one of them was able to clearly detect rhodamine 6G concentrations up to 0.1 nmol/L. The differences of the SERS spectra at these Ag dendrites confirmed that the shapes and interparticle spacings have great effect on Raman enhancement, especially the interparticle spacings.
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