Undoped and Mg doped ZnO films were deposited on glass substrates by sol-gel spin coating method. This method is a simple, economical and effective method of making high quality films. The structural, morphological and optical properties of the films were investigated using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and UV-visible spectroscopy, respectively. The structure, surface morphology, optical transmittance and band gap were found to be dependent on the Mg content of the film. The XRD results showed that the films were of polycrystalline nature and FESEM images proved that the films were homogenous and compact. It was observed that the band gap increases with Mg doping.
Sol-gel method, Mg, ZnO, Films, Doping etc
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