journal article·2021-09

Vanadyl doped Li-zinc borate glasses: Optical and ESR study

M. Farouk, H.M. Mokhtar, Z.M. Abd El-Fattah, A. Samir

Publisher page

Abstract

Abstract Glasses with the composition xV2O5-(15-x) Li2O-70B2O3-15ZnO, for x varies from 0 to 4 mol. %, were synthesized using standard quenching technique. The amorphous nature for selected samples (x= 0, 1 and 4 mol. %) was ensured from X-ray diffraction (XRD) measurements. The samples were found to compose mainly from BO3 and BO4 basic structural units as inferred from Fourier transform infrared (FTIR) data. The number of BO4 (BO3) structural units was found to decrease (increase) with increasing the number of NBOs. These structural modifications within the glass network are responsible for the here observed composition dependence optical energy gap (Eotp) and Urbach band tail (ΔE). The electron spin resonance (ESR) results revealed a tetragonal compression for VO2+ ions present in octahedral coordination, with distinct optical transitions in the visible spectral regime.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Glass properties and applications · Luminescence Properties of Advanced Materials · Crystal Structures and Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (52)

Show source-provided references
1. Visible
2. Saetova · J. Non-Cryst. Solids · 2020 · 54510.1016/j.jnoncrysol.2020.120253 ↗
3. Mhareb · Optik · 2015 · 126 · 363810.1016/j.ijleo.2015.08.222 ↗
4. Wena · Mater. Res. Bull. · 2016 · 83 · 40010.1016/j.materresbull.2016.06.032 ↗
5. ElBatal · J. Non-Cryst. Solids · 2012 · 358 · 82010.1016/j.jnoncrysol.2011.12.069 ↗
6. Singh · Phys. B · 2011 · 406 · 189010.1016/j.physb.2011.02.049 ↗
7. Agarwal · Opt. Mater. · 2009 · 32 · 33910.1016/j.optmat.2009.08.012 ↗
8. Subhadra · Mater. Today · 2018 · 5 · 26417
9. Afyon · Sci. Rep. · 2014 · 4 · 711310.1038/srep07113 ↗
10. El-Moneim · J. Non-Cryst. Solids · 2019 · 514 · 6910.1016/j.jnoncrysol.2019.03.035 ↗
11. Farouka · J. Non-Cryst. Solids · 2019 · 523
12. Cozar · J. Alloys Compd. · 2001 · 326 · 12410.1016/S0925-8388(01)01247-6 ↗
13. Butnoi · 2019 · 809
14. Bih · Solid State Ionics · 2000 · 132 · 7110.1016/S0167-2738(00)00697-4 ↗
15. Manal · J. Solid State Chem. · 2011 · 184 · 276210.1016/j.jssc.2011.08.015 ↗
16. Danewalia · J. Non-Cryst. Solids · 2021 · 55310.1016/j.jnoncrysol.2020.120471 ↗
17. Galoisy · J. Non-Cryst. Solids · 2001 · 293 · 10510.1016/S0022-3093(01)00659-7 ↗
18. Gaafar · J. Alloys Compd. · 2009 · 475 · 53510.1016/j.jallcom.2008.07.114 ↗
19. Thulasiramudu · J. Quant. Spectrosc. Radiat. Transf. · 2006 · 102 · 21210.1016/j.jqsrt.2006.02.006 ↗
20. NagaRaju · Opt. Mater. · 2007 · 29 · 146710.1016/j.optmat.2006.07.006 ↗
21. Lakshmikanth · J. Lumin. · 2004 · 109 · 190
22. Subhadra · J. Non-Cryst. Solids · 2011 · 357 · 344210.1016/j.jnoncrysol.2011.06.013 ↗
23. Balaji Rao · J. Alloys Compd. · 2004 · 368 · 2510.1016/j.jallcom.2003.08.077 ↗
24. Yusub · J. Mol. Struct. · 2014 · 1076 · 13610.1016/j.molstruc.2014.07.055 ↗
25. Sindhu · Mater. Chem. Phys. · 2008 · 107 · 23610.1016/j.matchemphys.2007.07.005 ↗
26. Farouk · Optik · 2017 · 140 · 18610.1016/j.ijleo.2017.04.042 ↗
27. Raghavendra Rao · J. Non-Cryst. Solids · 2011 · 357 · 337310.1016/j.jnoncrysol.2011.06.004 ↗
28. Tanabe · J. Alloys Compd. · 2006 · 408 · 67510.1016/j.jallcom.2005.01.106 ↗
29. Gaafar · Curr. Appl. Phys. · 2013 · 13 · 15210.1016/j.cap.2012.07.007 ↗
30. Thakur · Ceram. Int. · 2015 · 41 · 1095710.1016/j.ceramint.2015.05.039 ↗
31. Sindhu · Mater. Chem. Phys. · 2008 · 107 · 23610.1016/j.matchemphys.2007.07.005 ↗
32. Laorodphan · J. Non-Cryst. Solids · 2016 · 453 · 11810.1016/j.jnoncrysol.2016.10.005 ↗
33. Ramesh Babu · J. Non-Cryst. Solids · 2011 · 1005 · 83
34. Edukondalu · J. Non-Cryst. Solids · 2012 · 358 · 258110.1016/j.jnoncrysol.2012.06.004 ↗
35. Singh · Phys. B · 2012 · 407 · 426910.1016/j.physb.2012.07.015 ↗
36. Yadav · Spectrochim. Acta A · 2016 · 157 · 12910.1016/j.saa.2015.12.027 ↗
37. Kesavulu · J. Mol. Struct. · 2010 · 975 · 9310.1016/j.molstruc.2010.03.091 ↗
38. Wena · J. Mater. Res. Bull. · 2016 · 83 · 40010.1016/j.materresbull.2016.06.032 ↗
39. Srinivasa Rao · Indian J. Appl. Res. · 2015 · 5 · 2249
40. Abdelghany · J. Spectrochim. Acta A · 2015 · 137 · 3910.1016/j.saa.2014.08.012 ↗
41. J. Tauc, in: J. Tauc (Ed.), Amorphous and Liquid Semiconductors, Plenum, NewYork, 1974, p. 171.10.1007/978-1-4615-8705-7 ↗
42. Davis · Philos. Mag. · 1970 · 22 · 90310.1080/14786437008221061 ↗
43. Marzouk · J. Non-Cryst. Solids · 2017 · 476 · 3010.1016/j.jnoncrysol.2017.08.031 ↗
44. Hassan · J. Alloys Compd. · 2018 · 750 · 32010.1016/j.jallcom.2018.03.351 ↗
45. Hassan · J. Non-Cryst. Solids · 2019 · 515 · 15710.1016/j.jnoncrysol.2019.02.026 ↗
46. Morshidy · Opt. Mater. · 2021 · 11310.1016/j.optmat.2021.110881 ↗
47. Urbach · Phys. Rev. · 1953 · 92 · 132410.1103/PhysRev.92.1324 ↗
48. Singh · Solid State Sci. · 2014 · 37 · 6410.1016/j.solidstatesciences.2014.08.010 ↗
49. Mohamed · J. Alloys Compd. · 2012 · 538 · 23010.1016/j.jallcom.2012.05.044 ↗
50. Sumalatha · J. Mol. Struct. · 2011 · 1006 · 9610.1016/j.molstruc.2011.08.025 ↗
51. Sreekanth Chakradhar · Mater. Res. Bull. · 2005 · 40 · 102810.1016/j.materresbull.2005.02.023 ↗
52. Sreenivasulu · Phys. B · 2014 · 454 · 6010.1016/j.physb.2014.06.039 ↗