Novel ZnO parallel ordered arrays with lamellar structure: Fabrication and characterization

Without templates or catalysts, large area ZnO parallel ordered arrays with lamellar structure have been successfully fabricated via a simple electrodeposition combined with annealing in air method. The ZnO nanowires arrays are parallel and equidistant with uniform diameters. The exterior of each ZnO nanowire is composed of abundant lamellar structure. The morphologies and chemical compositions have been characterized by field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD), separately. UV-vis absorption and PL spectra have been tested to research the optical properties. The UV emission peak at about 380 nm and green emission peaks at about 490 nm and 540 nm can be found in PL spectrum. The experimental studies provide the feasibility for fabricating large area ZnO parallel ordered arrays by a simple and low-cost method. (C) 2012 Elsevier B.V. All rights reserved.