Optical properties of Dy3+ activated MgAl2B2O7 phosphor using slow evaporation method

Authors

  • R. S. Palaspagar  Department of Physics, SM Science College, Kelapur, Yavatmal, Maharashtra, India
  • Y. P. Manwar  Department of Physics, RLT Science College, Akola, Maharashtra, India
  • R. P. Sonekar  Department of Physics, G.S. College, Khamgaon, Buldhana, Maharashtra, India
  • S. K. Omanwar  Department of Physics, SGB Amravati University, Amravati, Maharashtra, India

Keywords:

Alumino-Borate, rare earth ions, MAB:Dy3+, quenching mechanism.

Abstract

Present work reports, synthesis of Dy3+ activated MgAl2B2O7 (MAB) phosphor by using slow evaporation method. The prepared phosphors have been characterized by XRD, photoluminescence (PL) techniques. The photoluminescence emission spectra of the phosphors having an excitation at around 351 nm (mercury free) showed two distinguishing bands centered at around 484 nm (blue) and 577 nm (yellow) corresponding to 4F9/2-6H15/2 and 4F9/2-6H13/2 transitions of Dy3+, respectively. These phosphors have strong absorption in the near UV region. Furthermore, the chromaticity coordinate values were estimated from emission spectra of MAB. Moreover, the luminescence quenching noticed at optimum Dy3+ concentrations was due to the exchange interaction among the excited Dy3+ ions. The observed broad blue and yellow bands in Dy3+ ions show that phosphor may be applicable for white-LEDs.

References

  1. R.L. Kohale, S.J. Dhoble, J. Lumin, 138 (2013) 153–156.
  2. M. Bredol, U. Kynast, C. Ronda, Adv. Mater. 3 (1991) 137.
  3. Y.D. Huh, J.H. Shim, Y.R. Do, J. Electrochem. Soc. 150 (2003) H57.
  4. M. Nogami, Y. Abe, Appl. Phys. Lett. 69 (1996) 3776.
  5. A. Gedanken, R. Reisfeld, L. Sominski, Z. Zhong, Y. Koltypin, G. Panczer, M. Gaft, H. Minti, Appl. Phys. Lett. 77 (2000) 945.
  6. A.W. Xu, Y. Gao, H.Q. Liu, J. Catal. 207 (2002) 151.
  7. J.H. Barkyoumb, V.K. Mathur, A.C. Lewandowski, A. Tookey, P.D. Townsend, I. Giblin, J. Lumin. 629 (1997) 72–74.
  8. M. Yu, J. Lin, Z. Wang, J. Fu, S. Wang, H.J. Zhang, Y.C. Han, Chem. Mater. 14 (2002) 2224.
  9. S. Tanabe, J. Kang, T. Hanada, N. Soga, J. Non-Cryst. Solids 239 (1998) 170.
  10. C.K. Jayasankar, V. Venkatramu, S.S. Babu, P. Babu, J. Alloys Compd. 374 (2004) 22.
  11. S.D. Han, S.P. Khatkar, V.B. Taxak, G. Sharma, D. Kumar, Mater. Sci. Eng. B. 129 (2006) 126.
  12. R.S. Palaspagar, A.B. Gawande, R.P. Sonekar, S.K. Omanwar, J. Lumin. 154 (2014) 58-61.
  13. Y.P. Manwar, R.S. Palaspagar, R.P. Sonekar, S.K. Omanwar, J. Mater. Sci.: Mater. Elect. 28 (2017) 994-998.
  14. R.S. Palaspagar, A.B. Gawande, R.P. Sonekar, S.K. Omanwar, Mater. Res. Bull. 72 (2015) 215-219.
  15. R.S. Palaspagar, R.P. Sonekar, S.K. Omanwar, J. Mater. Sci.: Mater. Elect. 27 (2016) 4951-4958.
  16. R.S. Palaspagar, R.P. Sonekar, S.K. Omanwar, AIP Conf. Proc. 1536 (2013) 807-808.
  17. R.S. Palaspagar, A.B. Gawande, R.P. Sonekar, S.K. Omanwar, J. Chin. Adv. Mater. Soc. 3 (2015) 170-176.
  18. R. S. Palaspagar, R. P. Sonekar, S. K. Omanwar, J. Mater. Sci.: Mater. Elect. 27 (2016) 9335-9340.
  19. Z.H. Li, J.H. Zeng, G.C. Zhang, Y.D. Li., J. Solid State Chem. 178 (2005) 3624.
  20. C.C. Yu, X.M. Liu, M. Yu, C.K. Lin, C.X. Li, H. Wang, J. Lin., J. Solid State Chem. 180 (2007) 3058-3065.

International Journal of Scientific Research in Science and Technology

Downloads

Published

2018-01-30

Issue

Volume 4, Issue 1, January-February-2018

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]
R. S. Palaspagar, Y. P. Manwar, R. P. Sonekar, S. K. Omanwar, " Optical properties of Dy3+ activated MgAl2B2O7 phosphor using slow evaporation method , International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011, Volume 4, Issue 1, pp.239-242, January-February-2018.