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A structural and optical properties of Cu-doped ZnO films prepared by spray pyrolysis

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Abstract

Pure and Cu doped ZnO films were grown by ultrasonic spray pyrolysis onto glass substrates at 450 °C for 30 min. This study aims to investigate the influence of Cu doping content [0.02–0.20] on structural, microstructural and optical properties. X-ray diffraction analysis reveals a structural disorder depending on Cu loading besides the appearance of CuO phase. The doping effectiveness is revealed by EDX analysis of the chemical composition of the films. The transmittance shows a decreasing tendency with increasing Cu concentration. The refractive indices increase, whereas the values of forbidden energy gap decrease with the increase in Cu dopant concentration.

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Acknowledgements

The authors would like to thank the National Project Research (PNR) and LASPI2A Laboratory of Khenchela University (Algeria) for their financial support of this research project.

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  1. LASPI2A Laboratoire Des Structures, Propriétés Et Interactions Inter Atomiques, Université Abbes Laghrour, Khenchela, 40000, Algérie

    Sabrina Roguai & Abdelkader Djelloul

  2. Science of Matter, Abbes Laghrour University, Khenchela, Algeria

    Sabrina Roguai & Abdelkader Djelloul

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  1. Sabrina Roguai
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Correspondence to Sabrina Roguai.

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Roguai, S., Djelloul, A. A structural and optical properties of Cu-doped ZnO films prepared by spray pyrolysis. Appl. Phys. A 126, 122 (2020). https://doi.org/10.1007/s00339-020-3301-6

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