Structural, absorption and fluorescence spectral analysis of Pr3+ ions doped zinc bismuth borate glasses

► 20ZnO·xBi2O3·(79.5−x)B2O3·0.5Pr6O11 (15 ≤ x ≤ 35) glasses were prepared by melt quench technique. ► The Judd-Ofelt parameters Ωλ (λ = 2, 4, 6) and other radiative properties like radiative transition probability, radiative life time, branching ratio and stimulated emission cross-section of the prepared glasses have been calculated. ► The branching ratio for 3P0 → 3F2 transition of Pr3+ doped glasses is 42% and the predicted spontaneous radiative transition probability rates are fairly high.