LAUSR

Abstract This paper elucidates the concentration-dependent photoluminescence properties of samarium ions in Lithium bismuth alumino borosilicate (LiBiAlBSi) glasses using XRD, FT-IR, absorption, excitation, emission & decay to quantify the luminescence properties of the titled glasses. XRD and FT-IR spectral data ascertain the non-crystalline nature and vibrational energies in host glass respectively. The intense excitation band observed at 400 nm in near UV region (under λem = 600 nm) is employed to read the emission spectra. Under 400 nm intense excitation wavelength, the titled glasses show intense visible reddish-orange emission at 600 nm. From the emission spectra, it is observed that 0.5 mol% of Sm3+ ions concentration in LiBiAlBSi glass is optimum for reddish-orange emission. The CIE coordinates estimated for LiBiAlBSi glasses are in good proximity with the reddish-orange emission coordinates specified by Nichia Corporation. Branching ratios, emission cross-sections, quantum efficiency, and CIE coordinates estimated finally reveals the aptness of the LiBiAlBSi glasses for reddish-orange optoelectronic device applications.