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

Abstract

The continuous development of electronic device technologies allows more value-added products to be processed. This increases the need for alternative and economical semiconductor materials. It is possible to reduce the cost of semiconductor technology and make it easily accessible with thin films. ZnO thin films have a wide range of applications from sensors to optoelectronic devices, from biomedical applications to wearable product technology. 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 grain 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 grain 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.

Keywords

• ZnO,Al doping,thin film,sol-gel,magnetic spin coating

References

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