Effect of Fe-doping on the structural and optical properties of ZnO thin films prepared by spray pyrolysis |
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Authors: | S. M. Salaken E. Farzana J. Podder |
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Affiliation: | Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology,Dhaka-1000, Bangladesh;Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology,Dhaka-1000, Bangladesh;Department of Physics, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh |
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Abstract: | Fe-doped ZnO thin films have been prepared by spray pyrolysis on glass substrates and the influence of Fe-doping concentration on the structural and optical properties of the films has been studied. The X-ray diffraction (XRD) analysis shows that Fe doping has a significant effect on crystalline quality, grain size and strain in the thin films. The best crystalline structure is obtained for 3 at% Fe doping as observed from scanning electron microscopy (SEM) and XRD. However, lower or higher Fe-doping degrades the crystalline quality in turn. Moreover, UV spectroscopy demonstrates the influence of Fe-incorporation on visible range transmittance of ZnO where the best transmittance is obtained for 3 at% doping. The results have been illustrated simultaneously focusing previous results obtained from literature. |
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Keywords: | ZnO spray pyrolysis thin films |
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