Xun Hong, Guan-zhong Wang, Ying Wang, Wei Zhu, Xiao-shuang Shen. Controllable Electrochemical Synthesis of Silver Dendritic Nanostructures and Their SERS Properties[J]. Chinese Journal of Chemical Physics , 2010, 23(5): 596-602. doi: 10.1088/1674-0068/23/05/596-602
Citation: Xun Hong, Guan-zhong Wang, Ying Wang, Wei Zhu, Xiao-shuang Shen. Controllable Electrochemical Synthesis of Silver Dendritic Nanostructures and Their SERS Properties[J]. Chinese Journal of Chemical Physics , 2010, 23(5): 596-602. doi: 10.1088/1674-0068/23/05/596-602

Controllable Electrochemical Synthesis of Silver Dendritic Nanostructures and Their SERS Properties

doi: 10.1088/1674-0068/23/05/596-602
Funds:  This work was supported by the National Natural Sci-ence Foundation of China (No.10574122, No.50772110, and No.50721091) and the National Basic Research Pro-gram of China (No.2006CB922000, No.2007CB925202, and No.2009CB939901).
  • Received Date: 2010-04-09
  • Ag dendritic nanostructures were synthesized on fluorine-doped tin oxide covered glass sub-strates by the electrodeposition method. Results demonstrate that the size, diameter, crys-tallinity, 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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