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Optical Parameters and Electrical Transport Properties of Some Barium-Sodium-Borate Glasses Doped Bismuth Oxide

Received: 4 January 2018     Accepted: 22 January 2018     Published: 7 February 2018
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Abstract

Glasses having the composition, [(70-x) mol% B2O3- x mol% Bi2O3- 10 mol% BaO- 20 mol% Na2O, where 0≤ x ≤20], have been prepared by the melt quenching method. Density, molar volume, infrared analysis, optical parameters and Electrical properties have been thoroughly investigated. It was found that, both density and molar volume increased with the gradual replacement of B2O3 by Bi2O3 and the comparison between their experimental and empirical values confirm the amorphous nature and the random structure of all samples. The obtained infrared results indicated that different structural borate groups appeared such as BO4 units (in di-, tri- and penta-borate groups) and BO3 units (in meta- and ortho-borate chains). Also, both BiO3 and BiO6 are present in all Bi doped glasses, and the BiO3 / BiO6 ratio appeared to be approximately stable as Bi2O3 was increased to 15 mol%, then it showed a jump increase when BiO3 reached 20 mol%. The optical band gap energy and cut-off wavelength increased with the increase of Bi2O3 while Urbach energy decreased. On the other hand, the electrical conductivity decreased as Bi2O3 was gradually replaced by B2O3, while the activation energy increased and all samples exhibit semi-conductors behavior and the values of the exponent factor decreased gradually with temperature, which is compatible with the correlated barrier hopping conduction mechanism.

Published in American Journal of Aerospace Engineering (Volume 5, Issue 1)
DOI 10.11648/j.ajae.20180501.11
Page(s) 1-8
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

Sodium-Borate Glasses, FTIR, Optical Parameters, AC Conductivity

References
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Cite This Article
  • APA Style

    Sayed M. Salem, Taha Z. Abou-Elnasr, Wael A. El-Gammal, Ahmed S. Mahmoud, Heba A. Saudi, et al. (2018). Optical Parameters and Electrical Transport Properties of Some Barium-Sodium-Borate Glasses Doped Bismuth Oxide. American Journal of Aerospace Engineering, 5(1), 1-8. https://doi.org/10.11648/j.ajae.20180501.11

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    ACS Style

    Sayed M. Salem; Taha Z. Abou-Elnasr; Wael A. El-Gammal; Ahmed S. Mahmoud; Heba A. Saudi, et al. Optical Parameters and Electrical Transport Properties of Some Barium-Sodium-Borate Glasses Doped Bismuth Oxide. Am. J. Aerosp. Eng. 2018, 5(1), 1-8. doi: 10.11648/j.ajae.20180501.11

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    AMA Style

    Sayed M. Salem, Taha Z. Abou-Elnasr, Wael A. El-Gammal, Ahmed S. Mahmoud, Heba A. Saudi, et al. Optical Parameters and Electrical Transport Properties of Some Barium-Sodium-Borate Glasses Doped Bismuth Oxide. Am J Aerosp Eng. 2018;5(1):1-8. doi: 10.11648/j.ajae.20180501.11

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  • @article{10.11648/j.ajae.20180501.11,
      author = {Sayed M. Salem and Taha Z. Abou-Elnasr and Wael A. El-Gammal and Ahmed S. Mahmoud and Heba A. Saudi and Ahmed G. Mostafa},
      title = {Optical Parameters and Electrical Transport Properties of Some Barium-Sodium-Borate Glasses Doped Bismuth Oxide},
      journal = {American Journal of Aerospace Engineering},
      volume = {5},
      number = {1},
      pages = {1-8},
      doi = {10.11648/j.ajae.20180501.11},
      url = {https://doi.org/10.11648/j.ajae.20180501.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajae.20180501.11},
      abstract = {Glasses having the composition, [(70-x) mol% B2O3- x mol% Bi2O3- 10 mol% BaO- 20 mol% Na2O, where 0≤ x ≤20], have been prepared by the melt quenching method. Density, molar volume, infrared analysis, optical parameters and Electrical properties have been thoroughly investigated. It was found that, both density and molar volume increased with the gradual replacement of B2O3 by Bi2O3 and the comparison between their experimental and empirical values confirm the amorphous nature and the random structure of all samples. The obtained infrared results indicated that different structural borate groups appeared such as BO4 units (in di-, tri- and penta-borate groups) and BO3 units (in meta- and ortho-borate chains). Also, both BiO3 and BiO6 are present in all Bi doped glasses, and the BiO3 / BiO6 ratio appeared to be approximately stable as Bi2O3 was increased to 15 mol%, then it showed a jump increase when BiO3 reached 20 mol%. The optical band gap energy and cut-off wavelength increased with the increase of Bi2O3 while Urbach energy decreased. On the other hand, the electrical conductivity decreased as Bi2O3 was gradually replaced by B2O3, while the activation energy increased and all samples exhibit semi-conductors behavior and the values of the exponent factor decreased gradually with temperature, which is compatible with the correlated barrier hopping conduction mechanism.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Optical Parameters and Electrical Transport Properties of Some Barium-Sodium-Borate Glasses Doped Bismuth Oxide
    AU  - Sayed M. Salem
    AU  - Taha Z. Abou-Elnasr
    AU  - Wael A. El-Gammal
    AU  - Ahmed S. Mahmoud
    AU  - Heba A. Saudi
    AU  - Ahmed G. Mostafa
    Y1  - 2018/02/07
    PY  - 2018
    N1  - https://doi.org/10.11648/j.ajae.20180501.11
    DO  - 10.11648/j.ajae.20180501.11
    T2  - American Journal of Aerospace Engineering
    JF  - American Journal of Aerospace Engineering
    JO  - American Journal of Aerospace Engineering
    SP  - 1
    EP  - 8
    PB  - Science Publishing Group
    SN  - 2376-4821
    UR  - https://doi.org/10.11648/j.ajae.20180501.11
    AB  - Glasses having the composition, [(70-x) mol% B2O3- x mol% Bi2O3- 10 mol% BaO- 20 mol% Na2O, where 0≤ x ≤20], have been prepared by the melt quenching method. Density, molar volume, infrared analysis, optical parameters and Electrical properties have been thoroughly investigated. It was found that, both density and molar volume increased with the gradual replacement of B2O3 by Bi2O3 and the comparison between their experimental and empirical values confirm the amorphous nature and the random structure of all samples. The obtained infrared results indicated that different structural borate groups appeared such as BO4 units (in di-, tri- and penta-borate groups) and BO3 units (in meta- and ortho-borate chains). Also, both BiO3 and BiO6 are present in all Bi doped glasses, and the BiO3 / BiO6 ratio appeared to be approximately stable as Bi2O3 was increased to 15 mol%, then it showed a jump increase when BiO3 reached 20 mol%. The optical band gap energy and cut-off wavelength increased with the increase of Bi2O3 while Urbach energy decreased. On the other hand, the electrical conductivity decreased as Bi2O3 was gradually replaced by B2O3, while the activation energy increased and all samples exhibit semi-conductors behavior and the values of the exponent factor decreased gradually with temperature, which is compatible with the correlated barrier hopping conduction mechanism.
    VL  - 5
    IS  - 1
    ER  - 

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Author Information
  • Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt

  • Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt

  • Egyptian Nuclear & Radiological Regulatory Authority, Cairo, Egypt

  • Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt

  • Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt

  • Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt

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