Study of influence of Sm3+ ions concentration on fluorescence and FT-IR studies of lead barium lithium borate glasses for red color display device applications

Abstract The varied trivalent Samarium ions activated lead borate glass with composition 40B2O3+35PbO+15Ba2CO3+(10-x)Li2CO3+ xSm2O3 (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 4G5/2 → 6H5/2, 6H7/2, 6H9/2 and 6H11/2 transitions of trivalent Sm3+ ions respectively. In the present investigated glasses, BPbBaLiSm10 glass has highest emission peak intensity for the transition 4G5/2 → 6H5/2 at 610 nm. The high values of Stimulated emission cross-section (σemi = 7.56 × 10−22 cm2), gain band width parameter (σemi x τexp = 15.25 × 10−28 cm3) and fluorescence lifetime (τexp = 0.951 ms) for 4G5/2 → 6H5/2 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.