Study of influence of Sm 3+ ions concentration on fluorescence and FT-IR studies of lead barium lithium borate glasses for red color display device applications

The varied trivalent Samarium ions activated lead borate glass with composition 40B(2)O(3) + 35PbO +15Ba(2)CO(3) + (10-x)Li2CO3 + xSm(2)O(3) (where x = 0.0, 0.1, 0.5, 1.0, 1.1, 1.5, 2.0 mol %) have been prepared by adopting melt-quenching method. For investigated glass matrices physical properties like thickness, density and refractive indices, polaron radius etc. were measured/calculated. The investigated glasses are characterized through the X-ray diffractometer (XRD), Fourier Transform Infra-Red (FT-IR), Absorption, Emission and fluorescence lifetime analysis. The radiative properties for the optimized BPbBaLiSm10 glass have been calculated using J-O spectral intensity parameters. The luminescence spectra consist of four bands at 573, 610, 657 and 718 nm, which were assigned to (4)G(5/2) -> H-6(5/2), H-6(7/2), H-6(9/2) and H-6(11/2) transitions of trivalent Sm3+ ions respectively. In the present investigated glasses, BPbBaLiSm10 glass has highest emission peak intensity for the transition (4)G(5/2) -> H-6(5/2) at 610 nm. The high values of Stimulated emission cross-section (sigma(emi) = 7.56 x 10(-22) cm(2)), gain band width parameter (sigma(emi) x tau(exp) = 15.25 x 10(-28) cm(3)) and fluorescence lifetime (tau(exp) = 0.951 ms) for (4)G(5/2) -> (6)H(5/2)( )transition of BPbBaLiSm10 glass strongly suggesting that the present investigated BPbBaLiSm10 glass may be potential candidate for development of visible lasers and photonics display (red colour) device applications.