Impact of Sm 3+ ions concentration on the luminescence features of aluminium incorporated tri-former glasses for photonic applications

luminium incorporated tri-former glasses with varying Samarium ion concentrations are the new series of glass materials for luminescence applications. The tile materials are manufactured by the standard melt quenching method, and their physical properties such as density, and refractive index were determined. The UV–Vis-NIR spectra comprise thirteen peaks, and the transition 6 H 5/2 → 6 F 7/2 is found to be hypersensitive in nature. The covalent/ ionic character of the present xSmBSPA glasses was determined using the Nephelauxetic ratio and bonding parameters. Oscillator strength and JO parameters were estimated for all the glasses and the JO parameters followed the trend as Ω 6 > Ω 4 > Ω 2 . The excitation spectrum followed by the emission spectra monitoring an excitation wavelength at 402 nm was recorded for all the present samples, exhibiting four emission bands. The emission transitions 4 G 5/2 → 6 H 5/2 (564 nm), 6 H 7/2 (600 nm), 6 H 9/2 (646 nm), and 6 H 11/2 (702 nm) emit visible light in the reddish-orange region, which is confirmed through the CIE color chromaticity coordinates. A reduction in the emission intensity beyond 0.25