Fabrication and Characterization of Sm3+ Doped Zinc Barium Borate Glasses
DOI:
https://doi.org/10.15407/ujpe63.7.608Keywords:
zinc-barium-borate glasses, photoluminescence, Sm3 ion, Judd–Ofelt analysis, emission cross-sectionAbstract
Zinc-barium-borate glasses with the composition (60 − x)B2O3–10ZnO–30BaO–xSm2O3 (where x = 0.5, 1.0, 1.5, 2.0 and 2.5 mol %) doped with Sm3+ ions have been prepared, and their physical and optical properties are investigated. The photoluminescence spectra recorded under the 403-nm excitation exhibited the emission bands at 564, 600, 647, and 710 nm corresponding to the transition 4 G5/2 →6 Hj (j = 5/2, 7/2, 9/2, 11/2), respectively. Judd–Ofelt intensity parameters (Ωl, l = 2, 4 and 6) have been evaluated, and the radiative transition probabilities, emission cross-section, and branching ratios for the excited levels of Sm3+ ions
are predicted. The lifetime of the 4 G5/2 level is found to decrease with an increase in the Sm3+ ion concentration.
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