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Structural and Optical Properties of Zinc Borotellurite Glass Co-Doped with Lanthanum and Silver Oxide

DOI: 10.4236/msce.2018.64003, PP. 18-23

Keywords: Zinc Borotellurite Glass, Lanthanum Oxide, Silver Oxide, Optical Band Gap, Urbach Energy

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Abstract:

A series of zinc borotellurite glass co-doped with lanthanum and silver oxide with the chemical formula of [{[(TeO2)0.7(B2O3)0.3]0.7(ZnO)0.3}0.96(La2O3)0.04]1-x(Ag2O)x where the molar frac-tion of silver oxide, x = 0.02, 0.04, 0.06, 0.08 and 0.10 had been successfully prepared via the conventional melt-quenching technique. The structural properties of the glasses were unveiled through X-ray Diffraction (XRD) and Fourier Transform Infra-Red (FTIR) spectroscopy while optical properties of the glasses were investigated with Ultra Violet Visible (UV-Vis) spectropho-toscopy. The short range periodic atomic arrangement in the glass matrix that implies the amorphous nature of the glass was confirmed with the presence of a broad hump in the XRD pattern. On the other hand, the three absorption bands observable in the FTIR spectra had proven the existence of BO4, BO3 as well as TeO4 units in the glass network. The absorbance values retrieved from UV-Vis spectroscopy were utilized to calculate the indirect energy band gap and Urbach energy values of the fabricated glass. By employing the equations proposed by Mott and Davis, the obtained indirect energy band gap have val-ues ranging from 2.16 to 4.16 eV.The decreasing trend in indirect energy band gap and increasing Urbach energy values were related to the increasing num-ber of nonbridging oxygen (NBO) in the glass that is created from the breaking of Te-O-Te or B-O-B bonds after lanthanum as well as silver oxide are incor-porated into the zinc borotellurite glass network.

References

[1]  Lin, H., Yang, D., Liu, G., Ma, T., Zhai, B., An, Q., Yu, J., Wang, X., Liu, X. and Pun, E.Y.B. (2005) Optical Absorption and Photoluminescence in Sm3+- and Eu3+-Doped Rare-Earth Borate Glasses. J. Lumin, 113, 121-128. https://doi.org/10.1016/j.jlumin.2004.09.115
[2]  Safonov, V.V. (2007) Synthesis and Properties of Molybdenum Tellurite Glasses of the BaCl2-MoO3-TeO2 System. Russian Journal of Inorganic Chemistry, 52, 326-328. https://doi.org/10.1134/S0036023607030059
[3]  Dousti, M.R. and Hosseinian, S.R. (2014) Enhanced Upconversion Emission of Dy3+-Doped Tellurite Glass by Heat-Treated Silver Nanoparticles. J. Lumin, 154, 218-223. https://doi.org/10.1016/j.jlumin.2014.04.028
[4]  Mahraz, Z.A.S., Sahar, M.R., Ghoshal, S.K. and Dousti, M.R. (2013) Concentration Dependent Luminescence Quenching of Er3+-Doped Zinc Boro-Tellurite Glass. J. Lumin, 144, 139-145. https://doi.org/10.1016/j.jlumin.2013.06.050
[5]  Faznny, M.F., Halimah, M.K. and Azlan, M.N. (2016) Effect of Lanthanum Oxide on Optical Properties of Zinc Borotellurite Glass System. Journal of Optoelectronics and Biomedical Materials, 8, 49-59.
[6]  Usman, A., Halimah, M.K., Latif, A.A., Muhammad, F.D. and Abubakar, A.I. (2018) Influence of Ho3+ Ions on Structural and Optical Properties of Zinc Borotellurite Glass System. J. Non-Cryst. Solids, 483, 18-25. https://doi.org/10.1016/j.jnoncrysol.2017.12.040
[7]  Jambhale, V.N. and Chanshetti, U.B. (2018) Synthesis and Characterization of Boro-Aluminotellurite Glass System. Journal of Chemistry and Chemical Sciences, 8, 199-203.
[8]  Farouk, M., Samir, A. and El Okr, M. (2018) Effect of Alkaline Earth Modifier on the Optical and Structural Properties of Cu2+ Doped Phosphate Glasses as a Bandpass Filter. Physica B, 530, 43-48. https://doi.org/10.1016/j.physb.2017.11.013
[9]  Ersundu, M.C. and Ersundu, A.E. (2016) Structure and Crystallization Kinetics of Lithium Tellurite Glasses. J. Non-Cryst. Solids, 453, 150-157. https://doi.org/10.1016/j.jnoncrysol.2016.10.007
[10]  Terczyńska-Madej, A., Cholewa-Kowalska, K. and Laczka, M. (2011) Coordination and Valence State of Transition Metal Ions in Alkali-Borate Glasses. Opt. Mater, 33, 1984-1988. https://doi.org/10.1016/j.optmat.2011.03.046
[11]  Ticha, H., Kincl, M. and Tichy, L. (2013) Some Structural and Optical Properties of (Bi2O3)x(ZnO)60-x(B2O3)40 Glasses. Mater. Chem. Phys., 138, 633-639. https://doi.org/10.1016/j.matchemphys.2012.12.032
[12]  Oueslati-Omrani, R., Hamzaoui, A.H., Chtourou, R. and M’nif, A. (2018) Structural, Thermal and Optical Properties of Phosphate Glasses Doped with SiO2. J. Non-Cryst. Solids, 481, 10-16. https://doi.org/10.1016/j.jnoncrysol.2017.08.019
[13]  Mohd Fudzi, F., Mohamed Kamari, H., Abd Latif, A. and Muhammad Noorazlan, A. (2017) Linear Optical Properties of Zinc Borotellurite Glass Doped with Lanthanum Oxide Nanoparticles for Optoelectronic and Photonic Application. J. Nanomater, 2017, 1-8.
[14]  Hazlin, A., Halimah, M.K., Mohammad, F.D., Faznny, M.F. and Iskandar, S.M. (2017) Effect of Dysprosium Nanoparticles on the Optical Properties of Zinc Borotellurite Glass Systems. Solid State Phenomena, 268, 13-17. https://doi.org/10.4028/www.scientific.net/SSP.268.13
[15]  Dalal, S., Khasa, S., Dahiya, M.S., Yadav, A., Agarwal, A. and Dahiya, S. (2015) Optical and Thermal Investigations on Vanadyl Doped Zinc Lithium Borate Glasses. Journal of Asian Ceramic Societies, 3, 234-239. https://doi.org/10.1016/j.jascer.2015.03.004
[16]  Mhareb, M.H.A., Hashim, S., Ghoshal, S.K., Alajerami, Y.S.M., Bqoor, M.J., Hamdan, A.I., Saleh, M.A. and Karim, M.A. (2016) Effect of Dy2O3 Impurities on the Physical, Optical and Thermoluminescence Properties of Lithium Borate Glass. J. Lumin., 177, 366-372. https://doi.org/10.1016/j.jlumin.2016.05.002

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