Physical and optical studies on ZnO films by SOL-GEL

Zinc oxide (ZnO) is a new material used in electronics applications such as spintronics, diluted magnetic semiconductor (DMS) and thin films. In this paper, the findings in fabrication and characterization of ZnO nanoparticles are reported. ZnO thin films were deposited onto glass substrates using a spin coating techniques at different pre-annealing temperatures. The optical transmittance measurement of the ZnO nanostructures was examined using an ultraviolet-visible spectrophotometer (UV-Vis) with wavelength ranging from 300-800 nm. On the other hand, the topography and film roughness were, measured by an atomic force microscope (AFM). The surface morphologies was obtained using a field emission scanning electron microscope (FESEM) and showed that the ZnO nanoparticles are distributed uniformly.