Production and Characterization of Al-Doped ZnO Thin Films with Sol-Gel Magnetic Spin Coating Technique

Abstract

In this study, ZnO thin films were developed by using Sol-Gel Spin Coating method which is simpler than other methods and by using low cost Sol-Gel Magnetic Spin Coating method which will be used for the first time in literature. Some physical properties of ZnO thin films produced by doping 1%, 3% and 5% Al were examined using X-Ray Diffraction (XRD) Device, Field Emission Scanning Electron Microscope (FESEM) and UV-Vis Spectrophotometer. When structural properties were examined, it was seen that preferential orientation changed and crystallite size values increased as Al doping amount increased. When the surface properties were examined, it was seen that a homogeneous coating was formed on the litter with the technique used. In addition, FESEM images prove that crystallite size values increase as the amount of doping increases. It was determined that the band gap values of thin films whose optical properties were examined decreased as the amount of doping increased. As it can be understood from these results, this thin film production technique, which is used for the first time in the literature, is able to produce doped thin films more easily and economically. © 2020, Sakarya University. All rights reserved.