Influence of deposition potential on ZnO films obtained by electrodeposition

Thin films of ZnO electrodeposited on ITO coated glass substrate at different potential ranging from -0,8 to -1,1 V. In the experiments ZnCl2 was used as an electrolyte and depositions temperature were keept at 75OC during the depositions. Structural analyses were carried out by XRD and XRD results revealed that all films formed hexagonal crystal structure. The optical properties of the films were researched by using UV-vis spectrophotometer. The energy band gaps of the ZnO films are between 3.51 and 3.80 eV. The morphological analyses were performed by SEM with coating platinium. It was understand from the SEM images that various morphological structure was obtained such as slice, lamellar and lace like structure.