Vol. 25 No. 1 (2026): Mapana Journal of Sciences
Research Articles

Physical, Structural, Thermal, electrical and dielectric investigations on Li2O doped Borosilicate Glasses

  • Aravind Dyama,
  • T Sankarappa,
  • Pallavi Jamadar,
  • Mohansingh Heerasingh,
  • R Ramanna
Aravind Dyama
Department of Physics, Gulbarga University, Kalaburagi, Karnataka, India
T Sankarappa
Department of Physics, Gulbarga University, Kalaburagi, Karnataka, India
Pallavi Jamadar
Department of Physics, Gulbarga University, Kalaburagi, Karnataka, India
Mohansingh Heerasingh
Department of Physics, Gulbarga University, Kalaburagi, Karnataka, India
R Ramanna
K.L.E. Society's Basavaprabhu Kore Arts, Science and Commerce College, Chikodi. Belagavi district, Karnataka, India

Published 2026-02-14

Keywords

  • Borosilicate glasses,
  • glass transition temperature,
  • conductivity,
  • dielectric constant,
  • impedance

Copyright (c) 2026

Creative Commons License

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Abstract

Li2O doped borosilicate glasses were prepared. They were confirmed to be non-crystalline. Measured density is in the range 1.904 and 2.304 g/cm³ and increased with Li2O content. FTIR spectra revealed functional groups. Thermal properties were determined from DTA traces. DC conductivity is found increasing with temperature and Li2O content.  Mott’s polaron hopping models were used to understand conductivity changes with temperature. Activation energy for conduction varied positively with Li2O.  The number of electronic states per unit volume around Fermi energy was found to vary from 1031 to 1034 ev-1m-3. Dielectric parameters were measured over a wide range of temperature and frequency.  Dielectric parameters decreased with frequency and increased with temperature. Analysis of electric modulus indicated the nature of conducting phase. In this paper, borosilicate systems mixed with CoO and Li2O were thoroughly investigated for physical, thermal, conduction mechanisms and dialectical properties. 

References

  1. Ganvir, V. Y., and R. S. Gedam. "Effect of La2O3 addition on structural and electrical properties of sodium borosilicate glasses." Materials Research Express 4, no. 3 (2017): 035204.
  2. Song, Lulu, Yunxia Wang, Alex C. Hannon, Steve Feller, Wu Li, Yongquan Zhou, and Fayan Zhu. "Structural investigation of lithium borate glasses by Raman spectroscopy: Quantitative evaluation of structural units and its correlation with density." Journal of Non-Crystalline Solids 616 (2023): 122478.
  3. Marzouk, M. A., R. M. Bahaa, M. E. Hassaneen, and A. M. Othman. "Investigating CoO Doping in Sodium Magnesium Borosilicate Glasses: Impacts on Structural, Thermal, Optical, and Mechanical Properties." Journal of Electronic Materials 54, no. 4 (2025): 3280-3294.
  4. Vijayalakshmi, L., K. Naveen Kumar, G. Bhaskar Kumar, and Pyung Hwang. "Structural, dielectric and photoluminescence properties of Nd3+ doped Li2O-LiF-B2O3-ZnO multifunctional optical glasses for solid state laser applications." Journal of Non-Crystalline Solids 475 (2017): 28-37.
  5. Abdel-Galil, A., N. L. Moussa, and O. I. Sallam. "Dual role of CoO and electron beam irradiation in enhancement the transport properties of borate glasses." Ceramics International 50, no. 2 (2024): 3187-3198.
  6. Taha, Eman O., and Aly Saeed. "The effect of cobalt/copper ions on the structural, thermal, optical, and emission properties of erbium zinc lead borate glasses." Scientific Reports 13, no. 1 (2023): 12260.
  7. Thombre, D. B., and Megha D. Thombre. "Study of physical properties of lithium borosilicate glasses." International Journal of Engineering Research and Development 10, no. 7 (2014): 9-19.
  8. Nagaraja, N., T. Sankarappa, and M. Prashant Kumar. "Electrical conductivity studies in single and mixed alkali doped cobalt–borate glasses." Journal of Non-Crystalline Solids 354, no. 14 (2008): 1503-1508.
  9. Gautam, Chandkiram R., Abhishek Madheshiya, and Ranabrata Mazumder. "Preparation, crystallization, microstructure and dielectric properties of lead bismuth titanate borosilicate glass ceramics." Journal of Advanced Ceramics 3, no. 3 (2014): 194-206.
  10. Shaaban, Kh S., B. M. Alotaibi, Nuha Alharbiy, Ateyyah M. Al-Baradi, and AF Abd El-Rehim. "Impact of TiO2 on DTA and elastic moduli of calcium potassium borophosphosilicate glasses in prelude for use in dental and orthopedic applications." Silicon 14, no. 17 (2022): 11991-12000.
  11. Dyama, A., T. Sankarappa, M. Heerasingh, A. Devidas, P. Jamadar, and A. Malge. "Study of Conduction Mechanisms in Alkali and Transition Metal Oxides Doped Borosilicate Glasses." Indian Journal of Science and Technology 17, no. 17 (2024): 1767-1775.
  12. El-Damrawi, G., and E. Mansour. "Electrical properties of lead borosilicate glasses." Physica B: Condensed Matter 364, no. 1-4 (2005): 190-198.
  13. Ciżman, A., E. Rysiakiewicz-Pasek, M. Krupiński, M. Konon, T. Antropova, and M. Marszałek. "The effect of Fe on the structure and electrical conductivity of sodium
  14. Heerasingh, Mohansingh, T. Sankarappa, Amarkumar Malge, Ashwini Devidas, Pallavi Jamadar, B. Raghavendra, and Aravind Dyama. "Electrical Conduction Mechanisms and Radiation Shielding Parameters of H2WO4-Doped Lead Vanadate Glasses." Journal of Electronic Materials (2025): 1-11.
  15. Ashwajeet, J. S., T. Sankarappa, T. Sujatha, and R. Ramanna. "Thermal and electrical properties of (B2O3-TeO2-Li2O-CoO) glasses." Journal of Non-Crystalline Solids 486 (2018): 52-57.
  16. Malge, Amarkumar, T. Sankarappa, T. Sujatha, P. Abdul Azeem, G. B. Devidas, and Santoshkumar Kori. "Structural and DC conductivity studies of borotellurite glasses doped with ZnO, Li2O and Dy2O3." Materials Today: Proceedings 26 (2020): 1960-1963.
  17. Heerasingh Mohansingh, T. Sankarappa, Amarkumar Malge, Ashwini Devidas, B. Raghavendra, Jamadar Pallavi, and Aravind Dyama. "Dielectric, thermal and gamma shielding characteristics of PbO–TeO2–V2O5–CoO glasses." Materials Chemistry and Physics 307 (2023): 128200.
  18. Malge, Amarkumar, T. Sankarappa, T. Sujatha, and G. B. Devidas. "Structural, Dielectric and AC Conductivity of Multicomponent Borotellurite Glasses." Glass Physics and Chemistry 47, no. Suppl 1 (2021): S1-S9.
  19. Kaky, Kawa M., G. Lakshminarayana, S. O. Baki, Y. H. Taufiq-Yap, I. V. Kityk, and M. A. Mahdi. "Structural, thermal, and optical analysis of zinc boro-aluminosilicate glasses containing different alkali and alkaline modifier ions." Journal of Non-Crystalline Solids 456 (2017): 55-63.
  20. Rajyasree, Ch, S. Bala Murali Krishna, A. Ramesh Babu, and D. Krishna Rao. "Structural impact of cobalt ions on BaBiBO4 glass system by means of spectroscopic and dielectric studies." Journal of Molecular Structure 1033 (2013): 200-207.
  21. Selvi, S., K. Marimuthu, and G. Muralidharan. "Effect of PbO on the B2O3–TeO2–P2O5–BaO–CdO–Sm2O3 glasses-structural and optical investigations." Journal of Non-Crystalline Solids 461 (2017): 35-46.
  22. Kumar, B. Vijaya, T. Sankarappa, M. Prashant Kumar, and Santosh Kumar. "Electronic transport properties of mixed transition metal ions doped borophosphate glasses." Journal of non-crystalline solids 355, no. 4-5 (2009): 229-234.
  23. El-Alaily, N. A., and R. M. Mohamed. "Effect of irradiation on some optical properties and density of lithium borate glass." Materials Science and Engineering: B 98, no. 3 (2003): 193-203.
  24. Paz, E. C., J. D. M. Dias, G. H. A. Melo, T. A. Lodi, J. O. Carvalho, P. F. Façanha Filho, M. J. Barboza, F. Pedrochi, and A. Steimacher. "Physical, thermal and structural properties of Calcium Borotellurite glass system." Materials Chemistry and Physics 178 (2016): 133-138.
  25. Taha, T. A., and A. S. Abouhaswa. "Structure, optical and magnetic properties of barium sodium borate/cobalt oxide glass structures." Optical and Quantum Electronics 55, no. 6 (2023): 483.
  26. Mastanappa, Ashok, Shrikant Biradar, G. B. Devidas, R. Rajaramakrishna, M. I. Sayyed, and M. N. Chandrashekara. "Effect of Li2O on physical, structural, thermal, optical, and electrical properties of mixed alkali borate glasses containing silver nanoparticles." Optical Materials 157 (2024): 116224.
  27. Heerasingh, Mohansingh, T. Sankarappa, Amarkumar Malge, Ashwini Devidas, B. Raghavendra, Jamadar Pallavi, and Aravind Dyama. "Physical and electrical studies of tellurite-lead-vanadate glasses doped with CoO." Materials Today: Proceedings 100 (2024): 25-30.
  28. Murugasen, Priya, Deepa Shajan, and Suresh Sagadevan. "A study of structural, optical and dielectric properties of Eu2O3 doped borate glass." International journal of physical Sciences 10, no. 20 (2015): 554-561
  29. Gedam, R. S., and D. D. Ramteke. "Electrical, dielectric and optical properties of La2O3 doped lithium borate glasses." Journal of Physics and Chemistry of solids 74, no. 7 (2013): 1039-1044.
  30. Sheoran, A., S. Sanghi, S. Rani, A. Agarwal, and V. P. Seth. "Impedance spectroscopy and dielectric relaxation in alkali tungsten borate glasses." Journal of Alloys and compounds 475, no. 1-2 (2009): 804-809.
  31. Dyama, Aravind, T. Sankarappa, Mohansingh Heerasingh, Jamadar Pallavi, Rohini Kalmath, Dawalappa B. Husenkhan, and Jyoti Kattimani. "Structural, thermal, optical and dielectric properties of borosilicate glass composites containing tungsten, zinc and lithium oxides." Physica Scripta 100 (2025) 105925.
  32. Mundher, M., A. A. Bendary, M. A. Farag, Abu Bakr El-Bediwi, and M. Y. Hassaan. "Tungsten oxide effects on conductivity, dielectric parameters, and density of sodium germanium borosilicate glass." Journal of Materials Science: Materials in Electronics 34, no. 12 (2023): 1069.
  33. Gundale, S. S., V. V. Behare, and A. V. Deshpande. "Study of electrical conductivity of Li2O-B2O3-SiO2-Li2SO4 glasses and glass-ceramics." Solid State Ionics 298 (2016): 57-62.
  34. Kupracz, Piotr, Jakub Karczewski, Marta Prześniak-Welenc, N. A. Szreder, Michał Jerzy Winiarski, Tomasz Klimczuk, and R. J. Barczy'nski. "Microstructure and electrical properties of manganese borosilicate glasses." Journal of Non-Crystalline Solids 423 (2015): 68-75.
  35. Jayswal, Manish S., D. K. Kanchan, Poonam Sharma, and Meenakshi Pant. "The effect of PbI2 on electrical conduction in Ag2O-V2O5-B2O3 superionic glass system." Solid State Ionics 186, no. 1 (2011): 7-13.
  36. Barczyński, Ryszard Jan, Paulina Król, and Leon Murawski. "Ac and dc conductivities in V2O5–P2O5 glasses containing alkaline ions." Journal of non-crystalline solids 356, no. 37-40 (2010): 1965-1967.