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Structural and Optical Properties of ZnO Thin Films Deposited by Pyrolysis Spray Method: Effect of Substrate Temperature

Published in Optics (Volume 7, Issue 2)
Received: 18 June 2018     Accepted: 23 July 2018     Published: 26 September 2018
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Abstract

During the last decades, thin films of ZnO have given rise to a great interest, as transparent conducting oxides. This is due the optical and electrical properties of zinc oxide; it’s very high thermal and chemical stability, its non-toxicity as well as his abandonment in nature. The transparent conducting ZnO thin films were deposited on glass substrate by pyrolysis spray technique. Zinc acetate was used as starting solution with a molarity of 0.1 M. The structural and optical properties of the ZnO thin films were studied as a function of the substrate temperatures in the range of 100 to 400°C. Structural properties have been studied by X-ray diffraction (XRD) technique. The preferred orientation for ZnO thin films lies along (002) direction. From XRD data, the average crystallite size is determined from scherrer formula. The grain size is in the range of 10~27. The transmittance of the films is enhanced from 60 to 85% in the visible region in the range from 400 to 1100 nm by increasing the substrate temperature. The optical band gap energy attenuates from 3.67 to 3.25eV and whereas the Urbach energies of the films increase from 226 to 91.2 meV with increasing the substrate temperature from 100°C to 400°C.

Published in Optics (Volume 7, Issue 2)
DOI 10.11648/j.optics.20180702.12
Page(s) 68-73
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

ZnO, Thin Films, Substrate Temperature, Pyrolysis Spray, XRD, Transmission

References
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  • APA Style

    Abdelkader Hafdallah, Fahima Djefaflia, Narimane Saidane. (2018). Structural and Optical Properties of ZnO Thin Films Deposited by Pyrolysis Spray Method: Effect of Substrate Temperature. Optics, 7(2), 68-73. https://doi.org/10.11648/j.optics.20180702.12

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    ACS Style

    Abdelkader Hafdallah; Fahima Djefaflia; Narimane Saidane. Structural and Optical Properties of ZnO Thin Films Deposited by Pyrolysis Spray Method: Effect of Substrate Temperature. Optics. 2018, 7(2), 68-73. doi: 10.11648/j.optics.20180702.12

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    AMA Style

    Abdelkader Hafdallah, Fahima Djefaflia, Narimane Saidane. Structural and Optical Properties of ZnO Thin Films Deposited by Pyrolysis Spray Method: Effect of Substrate Temperature. Optics. 2018;7(2):68-73. doi: 10.11648/j.optics.20180702.12

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  • @article{10.11648/j.optics.20180702.12,
      author = {Abdelkader Hafdallah and Fahima Djefaflia and Narimane Saidane},
      title = {Structural and Optical Properties of ZnO Thin Films Deposited by Pyrolysis Spray Method: Effect of Substrate Temperature},
      journal = {Optics},
      volume = {7},
      number = {2},
      pages = {68-73},
      doi = {10.11648/j.optics.20180702.12},
      url = {https://doi.org/10.11648/j.optics.20180702.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.optics.20180702.12},
      abstract = {During the last decades, thin films of ZnO have given rise to a great interest, as transparent conducting oxides. This is due the optical and electrical properties of zinc oxide; it’s very high thermal and chemical stability, its non-toxicity as well as his abandonment in nature. The transparent conducting ZnO thin films were deposited on glass substrate by pyrolysis spray technique. Zinc acetate was used as starting solution with a molarity of 0.1 M. The structural and optical properties of the ZnO thin films were studied as a function of the substrate temperatures in the range of 100 to 400°C. Structural properties have been studied by X-ray diffraction (XRD) technique. The preferred orientation for ZnO thin films lies along (002) direction. From XRD data, the average crystallite size is determined from scherrer formula. The grain size is in the range of 10~27. The transmittance of the films is enhanced from 60 to 85% in the visible region in the range from 400 to 1100 nm by increasing the substrate temperature. The optical band gap energy attenuates from 3.67 to 3.25eV and whereas the Urbach energies of the films increase from 226 to 91.2 meV with increasing the substrate temperature from 100°C to 400°C.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Structural and Optical Properties of ZnO Thin Films Deposited by Pyrolysis Spray Method: Effect of Substrate Temperature
    AU  - Abdelkader Hafdallah
    AU  - Fahima Djefaflia
    AU  - Narimane Saidane
    Y1  - 2018/09/26
    PY  - 2018
    N1  - https://doi.org/10.11648/j.optics.20180702.12
    DO  - 10.11648/j.optics.20180702.12
    T2  - Optics
    JF  - Optics
    JO  - Optics
    SP  - 68
    EP  - 73
    PB  - Science Publishing Group
    SN  - 2328-7810
    UR  - https://doi.org/10.11648/j.optics.20180702.12
    AB  - During the last decades, thin films of ZnO have given rise to a great interest, as transparent conducting oxides. This is due the optical and electrical properties of zinc oxide; it’s very high thermal and chemical stability, its non-toxicity as well as his abandonment in nature. The transparent conducting ZnO thin films were deposited on glass substrate by pyrolysis spray technique. Zinc acetate was used as starting solution with a molarity of 0.1 M. The structural and optical properties of the ZnO thin films were studied as a function of the substrate temperatures in the range of 100 to 400°C. Structural properties have been studied by X-ray diffraction (XRD) technique. The preferred orientation for ZnO thin films lies along (002) direction. From XRD data, the average crystallite size is determined from scherrer formula. The grain size is in the range of 10~27. The transmittance of the films is enhanced from 60 to 85% in the visible region in the range from 400 to 1100 nm by increasing the substrate temperature. The optical band gap energy attenuates from 3.67 to 3.25eV and whereas the Urbach energies of the films increase from 226 to 91.2 meV with increasing the substrate temperature from 100°C to 400°C.
    VL  - 7
    IS  - 2
    ER  - 

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Author Information
  • Applied and Theoretical Physics Laboratory, Department of Material Sciences, University Larbi Tebessi, Tebessa, Algeria

  • Department of Physics, Badji Mokhtar University, Annaba, Algeria

  • Faculty of Sciences, University of Souk-Ahras, Souk-Ahras, Algeria

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