Controllable Electrochemical Synthesis of Silver Dendritic Nanostructures and Their SERS Properties  

树枝状银纳米结构的可控电化学合成及其SPR／SERS性质

作　　者：洪勋[1] 王冠中[1] 王颖[1] 祝巍[1] 沈小双[1] 

机构地区：[1]中国科学技术大学合肥微尺度物质科学同家实验室,物理系,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2010年第5期596-602,622,共8页化学物理学报（英文）

摘　　要：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.

关 键 词：SILVER Dendritic nanostructure ELECTRODEPOSITION Surface enhanced Raman scattering 

分 类 号：O[理学]