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

Adeniyi Yisau Fasasi; Edward Osagie; David Pelemo; Eusebius Obiajunwa; Emmanuel Ajenifuja; John Ajao; Gabriel Osinkolu; Wasiu Oladotun Makinde; Abiodun Eyitayo Adeoye

doi:doi:10.11648/j.ajmsp.20180302.12

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

Adeniyi Yisau Fasasi, Edward Osagie, David Pelemo, Eusebius Obiajunwa, Emmanuel Ajenifuja, John Ajao, Gabriel Osinkolu, Wasiu Oladotun Makinde, Abiodun Eyitayo Adeoye

Published in American Journal of Materials Synthesis and Processing (Volume 3, Issue 2)

Received: 12 June 2018 Accepted: 26 June 2018 Published: 25 July 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.

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

Keywords

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

References

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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://article.sciencepublishinggroup.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

Adeniyi Yisau Fasasi

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

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

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

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

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

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

Centre for Energy Research & Development, Obafemi Awolowo University, Ile-Ife, Nigeria
Wasiu Oladotun Makinde

Centre for Energy Research & Development, Obafemi Awolowo University, Ile-Ife, Nigeria
Abiodun Eyitayo Adeoye

Department of Physical Sciences, Technical University, Ibadan, Nigeria

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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://article.sciencepublishinggroup.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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