Spectroscopic studies on Li2O–MgO–Bi2O3–B2O3 glasses |
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| Institution: | 1. Department of Physics, University College of Science, Osmania University, Hyderabad, India;2. Department of Physics, University College for Women, Koti, Hyderabad, India;3. Department of Physics, University College of Technology, Osmania University, Hyderabad, India;4. Department of Physics, Muffakahm Jah College of Engineering and Technology, Hyderabad, India;1. Institute of Physics and Technology; Ural Federal University, Yekaterinburg 620002, Russia;2. Physics Department, Faculty of Science, Al-Azhar University, Assuit 71524, Egypt;3. Department of Physics, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia;4. Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirate;5. Faculty of Engineering and Natural Sciences, Computer Engineering Department, Istinye University, Istanbul 34396, Turkey;6. Department of Physics, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;7. Department of Physics, University College of Turabah, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;8. Physics Department, Faculty of Science (Girls Branch), Al-Azhar University, Egypt;9. Physics Department, Faculty of Science, Tanta University, Tanta 31527, Egypt;10. Department of Physics, Faculty of Science, Menoufia University, Shebin El-Koom 32511, Menoufia, Egypt |
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| Abstract: | MgO-Li2O-Bi2O3-B2O3 glasses were prepared by melt quench technique and analyzed with the help of refractive index, optical, IR, and Raman spectroscopy studies. The present glasses exhibited the mixed modifier effect (MME) through refractive index change non-linearly. The variation in the indirect optical band gap and band tailing in MgO content have been discussed with the glass structure. Based on the obtained values of αo2-, optical basicity, and interaction parameters, the present glasses were termed as very semi covalent acidic oxide glasses. Raman and Infrared spectra reveal that these glasses are built up of BO3, BO4 units of B2O3 and octahedral BiO6], pyramidal BiO3] units of Bi2O3 were observed. |
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