Abstract
Herein, barium sulfoborophoshate (PBBs) glasses activated with varying contents of Sm3+ ions have been prepared by melt quench technique and optically characterized by means of ultraviolet visible, photoluminescence and fluorescence spectrophotometers to ascertain their spectroscopic traits. UV–Vis-NIR spectra revealed the occurrence of several absorption bands corresponding to the transitions from the ground state to various excited states of the Sm3+ ion. Meanwhile the photoluminescence spectra displayed four prominent emission bands centered at 559, 596, 642 and 709 nm. The as-prepared glass sample with 0.7 mol. % of samarium ions concentration disclosed highest luminescence intensity and quenched afterward. Besides, Judd–Ofelt approach has been applied for the f-f transition of Sm3+ ions to calculate intensity parameters (Ωλ (λ = 2, 4, 6). Conclusively, the exceptional values achieved for branching ratio >50%, color purity (99.56 %) and the quantum efficiency (86.21 %) declare the feasibility of the present glass host specifically PBBsSm0.7 sample for visible red laser and display device applications.
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