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Farouk M, Abd El-Maboud A, Ibrahim M, et al. Optical properties of Lead bismuth borate glasses doped with neodymium oxide. Spectrochim Acta A Mol Biomol Spectrosc. 2015;149:338-42doi: 10.1016/j.saa.2015.04.070.
Farouk, M., Abd El-Maboud, A., Ibrahim, M., Ratep, A., & Kashif, I. (2015). Optical properties of Lead bismuth borate glasses doped with neodymium oxide. Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 149338-42. https://doi.org/10.1016/j.saa.2015.04.070
Farouk, M, et al. "Optical properties of Lead bismuth borate glasses doped with neodymium oxide." Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy vol. 149 (2015): 338-42. doi: https://doi.org/10.1016/j.saa.2015.04.070
Farouk M, Abd El-Maboud A, Ibrahim M, Ratep A, Kashif I. Optical properties of Lead bismuth borate glasses doped with neodymium oxide. Spectrochim Acta A Mol Biomol Spectrosc. 2015 Oct 05;149:338-42. doi: 10.1016/j.saa.2015.04.070. Epub 2015 Apr 30. PMID: 25965518.
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Spectrochim Acta A Mol Biomol Spectrosc. 2015 Oct 05;149:338-42. doi: 10.1016/j.saa.2015.04.070. Epub 2015 Apr 30.

Optical properties of Lead bismuth borate glasses doped with neodymium oxide.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

M Farouk, A Abd El-Maboud, M Ibrahim, A Ratep, I Kashif

Affiliations

  1. Department of Physics, Faculty of Science, Al-Azhar University, Nasr City 11884, Cairo, Egypt.
  2. Department of Physics, Faculty of Science (Girls), Al-Azhar University, Nasr City 11884, Cairo, Egypt.
  3. Department of Physics, Faculty of girls, Ain-Shams University, Heliopolis, Cairo, Egypt.
  4. Department of Physics, Faculty of Science, Al-Azhar University, Nasr City 11884, Cairo, Egypt. Electronic address: [email protected].

PMID: 25965518 DOI: 10.1016/j.saa.2015.04.070

Abstract

Neodymium doped Lead bismuth borate glasses with the composition of 25PbO-25Bi2O3-50B2O3:xNd2O3, where x=0.5, 1, 1.5 and 2 mol%, have been prepared by melt quenching technique. The behavior of the density and molar volume allows concluding that, addition of Nd2O3 leads to the formation of non-bridging oxygen. Rare earth ion parameters have been calculated and studied. The optical band gap (Eg), and band tails (Ee) were determined. Judd-Ofelt theory for the intensity analysis of induced electric dipole transitions has been applied to the measured oscillator strengths of the absorption bands to determine the three phenomenological intensity parameters Ω2, Ω4 and Ω6 for glass. It was observed that the deviation parameters, rms, was found to be 0.56:0.58(×10(-6)). The estimated Judd-Ofelt parameters were found to be Nd2O3concentration dependent. The hypersensitive transition, (4)I9/2→(4)G5/2+(2)G7/2, is closely related to Ω2 parameter.

Copyright © 2015 Elsevier B.V. All rights reserved.

Keywords: Band tails; Density and molar volume; Judd–Ofelt parameters; Lead bismuth borate glasses; Optical band gap

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