Controlled synthesis of oriented ZnO nanorod arrays by seed-layer-free electrochemical deposition

• DOI: 10.1016/j.apsusc.2011.09.113
• Publication Date: 2011-10-01T20:52:33Z
• Authors: Yu Lin; Jiyuan Yang; Xiaoya Zhou
• Keywords: Nanorod; Deposition

Abstract Oriented ZnO nanorod arrays were successfully prepared on transparent conductive substrates by seed-layer-free electrochemical deposition in solution of Zn(NO 3 ) 2 at a low temperature of 70 °C without using any catalysts, additives, and additional seed crystals. The effects of the Zn(NO 3 ) 2 concentration, deposition time and applied current on the localized nanorod arrays are investigated. X-ray powder diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) were used to characterize the structures and the morphologies of ZnO nanorod arrays. The heights and diameters of ZnO nanorods can be tuned by controlling the electrodeposition parameters.