Luminescence and energy transfer in Dy3 /Tb3 co-doped CaO-Al2O3-B2O3-RE2O3 glass

作者：Wan, Xia; Lin, Yuan qing; Tie, Shao long^*; Shen, Jun yin

来源：Journal of Non-Crystalline Solids, 2011, 357(19-20): 3424-3429.

DOI：10.1016/j.jnoncrysol.2011.06.011

• Dy3 /Tb3 co-doped aluminoborate glass
• Luminescence
• Energy transfer
• Fluorescence decay lifetime

The new calcium aluminoborate glasses with the composition of CaO-Al2O3-B2O3-RE2O3 (RE = Dy and Tb) were synthesized and the luminescence of Dy3 and Tb3 was investigated. The results show that the emission intensity of Tb3 ion was enhanced when introducing Dy3 ion into CaO-Al2O3-B2O3-Tb2O3 glass due to the energy transfer processes between Dy3 and Tb3 . The energy transfer efficiencies, transfer probabilities as well as donor-acceptor critical distances were also calculated. The energy transfer mechanism between Dy3 and Tb3 ions is electric dipole-dipole interaction, which can be concluded by both fluorescence decay and emission intensity ratio varieties.

• 出版日期2011-10
• 单位华南师范大学