Production and Characterization of ZnO / Cu2O Based Devices Growing with Spin Coating Method

Abstract

In this study, p-n heterojunctuion structure (n-ZnO / p-Cu₂O) was formed by using ITO coated glass substrates, firstly by coating ZnO and then Cu₂O respectively. In this study, spin coating method is used which is simple and economical to obtain. The resulting n-ZnO / p-Cu₂O heterojunction was contacted with silver and characterized as Ag / ITO / ZnO / Cu₂O / Ag based device.X-ray diffraction (XRD) system was used for the structural analysis of the heterojunction structure, Holl measurement system for electrical properties, scanning electron microscopy (SEM) system was used for morphological analysis and coating thickness. The results showed that the coatings were uniformly distributed evenly over the entire surface and had a good crystalline structure. The thicknesses of the obtained coatings were found to be 1 µm for ZnO and 2µm for Cu₂O.