Manuscript Number : IJSRST1731126
Luminescence Studies on Eu3+ Doped Telluro-Borate Glasses for Laser and LED Applications
Authors(4) :-P. Adlin Helen, M. Vijayakumar, S. Arunkumar, K. Marimuthu A new series of Eu3+ ions doped telluroborate glasses have been prepared with the chemical composition (55ï€x)B2O3 + 25TeO2 + 10K2O + 10Bi2O3 + xEu2O3 (where x=0, 0.25, 0.5, 0.75, 1 and 2 in wt%) following the melt quenching technique. The Luminescence spectra for all the titled glasses exhibit five emission bands corresponding to the 5D0→7FJ (J=0, 1, 2, 3, 4) transitions located at 577 nm, 592 nm, 613 nm, 652 nm and 702 nm. The Judd-Ofelt intensity parameters have been used to calculate the radiative properties such as transition probability (A), branching ratio (βR), stimulated emission cross-section (ï³P) and radiative lifetime (ï´R) for the various emission transitions of the Eu3+ ions. Luminescence quenching has been observed beyond 1 wt% Eu3+ ions concentration and is due to the interaction takes place between the Eu3+ ions at higher concentration. The decay curves possess single exponential behavior uniformly for all the titled glasses and the experimental lifetime values were obtained following the curve fitting method.
P. Adlin Helen Telluroborate glasses, luminescence, Judd-Ofelt parameters, stimulated emission cross-section Publication Details
Published in : Volume 3 | Issue 11 | November-December 2017 Article Preview
Department of Physics, Gandhigram Rural Institute-Deemed University, Gandhigram-624 302, India
M. Vijayakumar
Department of Physics, International Research Centre, Kalasalingam University, Krishnankoil- 626 126, India
S. Arunkumar
Department of Physics, Gandhigram Rural Institute-Deemed University, Gandhigram-624 302, India
K. Marimuthu
Department of Physics, Gandhigram Rural Institute-Deemed University, Gandhigram-624 302, India
Date of Publication : 2017-12-15
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 146-149
Manuscript Number : IJSRST1731126
Publisher : Technoscience Academy
Journal URL : https://ijsrst.com/IJSRST1731126
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