Comparison of Dy3+-doped barium borate and lithium aluminoborate glass

Energy Transfer in Dy3+ and Tb3+ Double-Doped Barium Borate Glass

“…The resulting decay time serves as intrinsic decay time, , for the fit of the decay curves of the 0.23 at.%-, 0.32 at.%-, and 0.45 at.%-doped samples. The fit parameters are close to those found in previous measurements [ 25 ]. The experimental lifetime, , decreases from ms (0.005 at.%) to ms (0.45 at.%) with an increasing Dy content, whereas the energy transfer parameter, , increases from 0.359 (0.23 at.%) to 0.712 (0.45 at.%).…”

“…It can be seen that the highest energy transfer efficiency is achieved for the samples with 0.22 at.% Dy . The decrease in efficiency at higher Dy doping levels can be explained by the quenching effect [ 8 , 25 ]. In contrast to this, the energy transfer efficiency grows with increasing Tb content, as the interatomic distance between Dy and Tb decreases.…”

“…The decay of Dy in Dy single-doped samples is shown in Figure 10 . The analysis is also performed on the basis of the Inokuti–Hirayama model with the multipolar interaction parameter, S , set to 6 (dipole–dipole interaction) to allow for a direct comparison with previous lifetime measurements [ 25 ]. The decay of the 0.005 at.%-doped sample is assumed to be mono-exponential.…”

Controlled mechano-luminescence properties of SrGa2O4:Tb3+ co-doping with Dy3+ and Eu3+ ions

“…The average decay time τ of SGO host is determined to be 1.825, 1.702, 1.611, 1.548, 1.439 and 1.316 μs for Sr 1− x Ga 2 O 4 : x Tb 3+ with x = 0, 0.001, 0.003, 0.005, 0.007 and 0.009, respectively. The decrease in the decay lifetime of Ga 3+ with increasing Tb 3+ dopant content provides compelling evidence for the energy transfer from the SGO host to Tb 3+ , as reported by Zuo et al 40 and Grüne et al , 41 respectively. Furthermore, as shown in Fig.…”