Luminescence and phonon side band analysis of Eu3+-doped lead fluorosilicate glasses

The figure shows the emission spectra of SPbKNLFEu glass for different concentrations of Eu3+ ions. Among all these transitions, 5D0 → 7F1 and 5D0 → 7F2 transitions are more intense than the other four transitions. The 5D1 → 7F1 emission transition of green emission band at 536 nm has been observed in the low phonon energy of the host glasses. The phonon energy of 953 cm−1 in the present SPbKNLFEu10 glass is lower than the phonon energy of other reported glasses in the present work.215