Luminescence properties of Sm 3+ ions doped aluminium barium phosphate glasses

In this paper, the physical, optical and photoluminescence properties of alkali metals on Sm 3+ ions doped aluminium barium phosphate (R 2 O-Al 2 O 3 -BaO-P 2 O 5 , where R = Li, N, K) at 1 mol% Sm 2 O 3 have been investigated. These glasses were prepared by melt quenching technique at 1200 ° C. The density and molar volume of Sm 3+ ions were calculated. The absorption spectra consist of nine peaks corresponded the transitions from the 6 H 5/2 ground state to various excited energy levels. Photoluminescence spectra shows four prominent emission bands corresponding to the 4 G 5/2 → 6 H J (J = 5/2, 7/2, 9/2 and 11/2) transitions and the intensities of all band are enhanced by Sm 3+ ion content.