American Journal of Materials Synthesis and Processing

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Effect of Precursor Solvents on the Optical Properties of Copper Oxide Thin Films Deposited Using Spray Pyrolysis for Optoelectronic Applications

Received: Jun. 12, 2018    Accepted: Jun. 26, 2018    Published: Jul. 25, 2018
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Abstract

Copper oxide thin films were deposited on Pyrex glass substrates by spray pyrolysis using ethanol and distilled water (DW) respectively as solvents. Rutherford backscattering spectroscopy results indicated that films from aqueous are thicker than those of alcoholic solutions. Rutherford backscattering spectroscopic compositional results showed the films to be mainly CuO. Optical transmittance measurement of the films was analyzed to obtain the band gap, Urbach energy, optical conductivity, refractive index and the extinction coefficient which were found to be dependent on the solvent used and strongly influenced by the photon energy. The use of Tauc’s equation for calculating the bandgap indicated possible direct and indirect optical transitions. The refractive index of the films which showed normal dispersion behavior were also analyzed using single oscillator model to determine the dispersion parameters such as the dispersion energy, average oscillator strength and wavelength, zero and high frequency dielectric constant, zero frequency refractive index, optical charge carrier density, mobility and resistivity. All the determined values are higher for ethanol than aqueous samples.

DOI 10.11648/j.ajmsp.20180302.12
Published in American Journal of Materials Synthesis and Processing ( Volume 3, Issue 2, June 2018 )
Page(s) 12-22
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), 2024. Published by Science Publishing Group

Keywords

Copper Oxide, Bandgap, Refractive Index Dispersion, Dielectric Constants, Carrier Density

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Cite This Article
  • APA Style

    Adeniyi Yisau Fasasi, Edward Osagie, David Pelemo, Eusebius Obiajunwa, Emmanuel Ajenifuja, et al. (2018). Effect of Precursor Solvents on the Optical Properties of Copper Oxide Thin Films Deposited Using Spray Pyrolysis for Optoelectronic Applications. American Journal of Materials Synthesis and Processing, 3(2), 12-22. https://doi.org/10.11648/j.ajmsp.20180302.12

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    ACS Style

    Adeniyi Yisau Fasasi; Edward Osagie; David Pelemo; Eusebius Obiajunwa; Emmanuel Ajenifuja, et al. Effect of Precursor Solvents on the Optical Properties of Copper Oxide Thin Films Deposited Using Spray Pyrolysis for Optoelectronic Applications. Am. J. Mater. Synth. Process. 2018, 3(2), 12-22. doi: 10.11648/j.ajmsp.20180302.12

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    AMA Style

    Adeniyi Yisau Fasasi, Edward Osagie, David Pelemo, Eusebius Obiajunwa, Emmanuel Ajenifuja, et al. Effect of Precursor Solvents on the Optical Properties of Copper Oxide Thin Films Deposited Using Spray Pyrolysis for Optoelectronic Applications. Am J Mater Synth Process. 2018;3(2):12-22. doi: 10.11648/j.ajmsp.20180302.12

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  • @article{10.11648/j.ajmsp.20180302.12,
      author = {Adeniyi Yisau Fasasi and Edward Osagie and David Pelemo and Eusebius Obiajunwa and Emmanuel Ajenifuja and John Ajao and Gabriel Osinkolu and Wasiu Oladotun Makinde and Abiodun Eyitayo Adeoye},
      title = {Effect of Precursor Solvents on the Optical Properties of Copper Oxide Thin Films Deposited Using Spray Pyrolysis for Optoelectronic Applications},
      journal = {American Journal of Materials Synthesis and Processing},
      volume = {3},
      number = {2},
      pages = {12-22},
      doi = {10.11648/j.ajmsp.20180302.12},
      url = {https://doi.org/10.11648/j.ajmsp.20180302.12},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajmsp.20180302.12},
      abstract = {Copper oxide thin films were deposited on Pyrex glass substrates by spray pyrolysis using ethanol and distilled water (DW) respectively as solvents. Rutherford backscattering spectroscopy results indicated that films from aqueous are thicker than those of alcoholic solutions. Rutherford backscattering spectroscopic compositional results showed the films to be mainly CuO. Optical transmittance measurement of the films was analyzed to obtain the band gap, Urbach energy, optical conductivity, refractive index and the extinction coefficient which were found to be dependent on the solvent used and strongly influenced by the photon energy. The use of Tauc’s equation for calculating the bandgap indicated possible direct and indirect optical transitions. The refractive index of the films which showed normal dispersion behavior were also analyzed using single oscillator model to determine the dispersion parameters such as the dispersion energy, average oscillator strength and wavelength, zero and high frequency dielectric constant, zero frequency refractive index, optical charge carrier density, mobility and resistivity. All the determined values are higher for ethanol than aqueous samples.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Effect of Precursor Solvents on the Optical Properties of Copper Oxide Thin Films Deposited Using Spray Pyrolysis for Optoelectronic Applications
    AU  - Adeniyi Yisau Fasasi
    AU  - Edward Osagie
    AU  - David Pelemo
    AU  - Eusebius Obiajunwa
    AU  - Emmanuel Ajenifuja
    AU  - John Ajao
    AU  - Gabriel Osinkolu
    AU  - Wasiu Oladotun Makinde
    AU  - Abiodun Eyitayo Adeoye
    Y1  - 2018/07/25
    PY  - 2018
    N1  - https://doi.org/10.11648/j.ajmsp.20180302.12
    DO  - 10.11648/j.ajmsp.20180302.12
    T2  - American Journal of Materials Synthesis and Processing
    JF  - American Journal of Materials Synthesis and Processing
    JO  - American Journal of Materials Synthesis and Processing
    SP  - 12
    EP  - 22
    PB  - Science Publishing Group
    SN  - 2575-1530
    UR  - https://doi.org/10.11648/j.ajmsp.20180302.12
    AB  - Copper oxide thin films were deposited on Pyrex glass substrates by spray pyrolysis using ethanol and distilled water (DW) respectively as solvents. Rutherford backscattering spectroscopy results indicated that films from aqueous are thicker than those of alcoholic solutions. Rutherford backscattering spectroscopic compositional results showed the films to be mainly CuO. Optical transmittance measurement of the films was analyzed to obtain the band gap, Urbach energy, optical conductivity, refractive index and the extinction coefficient which were found to be dependent on the solvent used and strongly influenced by the photon energy. The use of Tauc’s equation for calculating the bandgap indicated possible direct and indirect optical transitions. The refractive index of the films which showed normal dispersion behavior were also analyzed using single oscillator model to determine the dispersion parameters such as the dispersion energy, average oscillator strength and wavelength, zero and high frequency dielectric constant, zero frequency refractive index, optical charge carrier density, mobility and resistivity. All the determined values are higher for ethanol than aqueous samples.
    VL  - 3
    IS  - 2
    ER  - 

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Author Information
  • Centre for Energy Research & Development, Obafemi Awolowo University, Ile-Ife, Nigeria; Department of Physics and Applied Mathematics, Osun State University, Osogbo, Nigeria

  • Centre for Energy Research & Development, Obafemi Awolowo University, Ile-Ife, Nigeria; Department of Physics and Engineering Physics, Obafemi Awolowo University, Ile-Ife, Nigeria

  • Centre for Energy Research & Development, Obafemi Awolowo University, Ile-Ife, Nigeria

  • Centre for Energy Research & Development, Obafemi Awolowo University, Ile-Ife, Nigeria

  • Centre for Energy Research & Development, Obafemi Awolowo University, Ile-Ife, Nigeria; Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Pretoria, South Africa

  • Centre for Energy Research & Development, Obafemi Awolowo University, Ile-Ife, Nigeria

  • Centre for Energy Research & Development, Obafemi Awolowo University, Ile-Ife, Nigeria

  • Centre for Energy Research & Development, Obafemi Awolowo University, Ile-Ife, Nigeria

  • Department of Physical Sciences, Technical University, Ibadan, Nigeria

  • Section