Structural and optical properties of CdO-ZnO thin films synthesized by sol-gel spin coating method

Abstract CdO-ZnO thin films with volume ratio of (Cd: Zn) (1: 0), (0.75: 0.25), (0.5: 0.5) and (0: 1) were prepared using the sol-gel spin coating method. The as-coated annealed at 550 °C for 1 h their structural optical properties investigated. From investigations, it was observed that ZnO phase is present in composites. crystallite size values decreased increasing Zn content, dislocation density increased from 0.77 to 0.988 (10 15 lines/m 2 ). examined by a ultraviolet-Visible spectroscopy, which indicated transmission increases visible region, band gap found be blue shift 2.26 3.24 eV increase content.