The Influence of x ratio and Annealing Temperatures on Structural and Optical Properties for (CuO)x(ZnO)1-x Composite Thin Films Prepared by PLD

E M Nasir; M F A Alias; A N Mohammed Ali

doi:10.1088/1757-899X/757/1/012053

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Publication Date

Sun Mar 01 2020

Journal Name

Iop Conference Series: Materials Science And Engineering

Volume

757

DOI

10.1088/1757-899X/757/1/012053

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The Influence of x ratio and Annealing Temperatures on Structural and Optical Properties for (CuO)x(ZnO)1-x Composite Thin Films Prepared by PLD

E M Nasir

M F A Alias

A N Mohammed Ali

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AbstractThin films of (CuO)x(ZnO)1-x composite were prepared by pulsed laser deposition technique and x ratio of 0≤ x ≤ 0.8 on clean corning glass substrate at room temperatures (RT) and annealed at 373 and 473K. The X-ray diffraction (XRD) analysis indicated that all prepared films have polycrystalline nature and the phase change from ZnO hexagonal wurtzite to CuO monoclinic structure with increasing x ratio. The deposited films were optically characterized by UV-VIS spectroscopy. The optical measurements showed that (CuO)x(ZnO)1-x films have direct energy gap. The energy band gaps of prepared thin films decreased as x ratio increased, while they increased with increasing annealing temperatures. Also the optical constants such as refractive index, extinction coefficient and dielectric constants have been calculated.

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