Optical Properties of LiF–Li2O –WO3–B2O3  Glasses

Authors

  • M. Srinivasa Reddy  Department of Physics, Anurag Group of institutions, Hyderabad, Telangana, India
  • S. Shankaraiah  Department of Chemistry, Anurag Group of institutions, Hyderabad, Telangana, India

DOI:

https://doi.org/10.32628/IJSRST207652

Keywords:

Borate Glass, Mixed Alkali Effect, Optical Absorption, Band Gap Energy, Urbach Energy

Abstract

Glass with compositions  xLiF–(30−x)Li2O –10WO3–60B2O3  for 5 ≤ x ≤ 25 mol% have been prepared using the normal melt quenching technique. The optical absorption and reflection spectra were recorded at room temperature in the wavelength range 300-800 nm. From the absorption edge studies, the values of the optical band gap (Eopt) and Urbach energy (ΔE) have been evaluated. The values of Eopt and ΔE vary non-linearly with composition parameter, showing the mixed alkali effect.

References

  1. M. Purnima, Salavadi Stalin, Avula Edukondalu, M.A. Samee, Shaik Kareem Ahmmad, Syed Rahman, Chin. J. Phys. 66 (2020) 517 -526.
  2. B. Kalyani, Navaneetha Pujari, Avula Edukondalu, Potharaju Krishna, J. Chinna Babu, C. P. Vardhani, J. Aust. Ceram. Soc. 56 (2020) 1147–1154.
  3. Navaneetha Pujari, B. Kalyani, Avula Edukondalu, C. P. Vardhani, J. Phys. Chem. Solids 148(2021)109627.
  4. A. Edukondalu, Syed Rahman, K. Siva Kumar, D. Sreenivasu, Vib. Spectrosc. 71 (2014) 91–97.
  5. B. Kalyania, Navaneetha Pujari, Potharaju Krishna, J. Chinna Babu, Avula Edukondalu, C.P. Vardhani, AIP Conf. Proc. 2269 (2020) 030083.
  6. Salavadi Stalin, Avula Edukondalu, M.A. Samee, Shaik Kareem Ahmmad, Sair Md. Taqiullah, Syed Rahman, AIP Conf. Proc. 2269 (2020) 030102.
  7. M. Purnima, Avula Edukondalu, K. Siva Kumar, Syed Rahman, Mat. Res. 20(1) (2017)46-52.
  8. A. Edukondalu, V, Sathe, Syed Rahman, K. Siva Kumar, Physica B 438 (2014) 120–126.
  9. A. Edukondalu, B. Kavitha, M. A. Samee, Shaik Kareem Ahmmed, Syed Rahman, K. Siva Kumar, J. Alloys Compd. 552 (2013) 157-165.
  10. Avula Edukondalu, T. Sripathi, ShaikKareem Ahmmad, S Rahman, K. Sivakumar, J. Elect. Mater. 46(2) (2017) 808 – 816.
  11. Ch. Srinivasu, M.A. Samee, A. Edukondalu, Syed Rahman, Int. J. Mod. Phys: conf. series 22 (2013)284-291.
  12. A. Edukondalu, M. Purnima, Ch. Srinivasu, T. Sripathi, A.M. Awasthi, Syed Rahman, K. Siva Kumar, J. Non-Cryst. Solids 358 (2012) 2581.
  13. Shaik Kareem Ahmmad, M.A. Samee, A. Edukondalu, Syed Rahman Results in Physics 2 (2012) 175–181
  14. M.A.Samee, Shaikh Kareem Ahmmad, A.Edukondalu, Syed Rahman J. Elect. Mater. 42 (2013) 2516.
  15. A.Edukondalu, M.A.Samee, Shaikh Kareem Ahmmad, Sair Md. Taqiullah, International Journal of Modern Physics: conference series 22 (2013) 278-283.

International Journal of Scientific Research in Science and Technology

Downloads

Published

2020-12-30

Issue

Volume 7, Issue 6, November-December-2020

Section

Research Articles

License

Copyright (c) IJSRST

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
M. Srinivasa Reddy, S. Shankaraiah "Optical Properties of LiF–Li2O –WO3–B2O3  Glasses" International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011,Volume 7, Issue 6, pp.344-348, November-December-2020. Available at doi : https://doi.org/10.32628/IJSRST207652