Growth of silver dendritic nanostructures via electrochemical route

Silver dendritic nanostructures were prepared on indium tin oxide coated glass substrate by electrochemical deposition from an aqueous solution of AgNO3 in the presence of citric acid. The silver dendritic nanostructures were characterized by using scanning electron microscopy, X-ray diffraction and UV-Visible absorption spectroscopy. Results showed that the morphology and growth of dendritic structures can be controlled with deposition time. A diffusion-limited aggregation model is used to explain the growth mechanism of silver nanostructures. The UV-Visible absorption spectra showed a wide range of absorption in the visible region by silver dendritic nanostructures.