【摘要】 制备了一系列Tb³⁺-Eu³⁺掺杂含Na_8.12Y_1.293Si₆O₁₈晶相的玻璃陶瓷，通过多种表征技术系统研究了热处理条件对其微观结构和发光性能的影响，最终确定最佳热处理条件为670℃、90 min。Tb³⁺的最佳掺杂浓度（物质的量分数）为0.5%，超过此浓度时会出现四极-四极相互作用主导的浓度猝灭。双掺玻璃陶瓷中存在Tb³⁺向Eu³⁺的能量传递。在293～493 K温度范围内，双掺玻璃陶瓷表现出良好的热稳定性，热猝灭活化能为0.24 eV，色度偏移为2.1×10^-2。此外，该材料具有一定的温度传感性能，最大温度灵敏度为5.7×10^-3K^-1，热重复性比为96.6%。更多还原

【Abstract】 A series of Tb³⁺-Eu³⁺doped glass-ceramics containing Na_8.12Y_1.293Si₆O₁₈were prepared. The influence of heat-treatment conditions on the microstructure and luminescent properties was systematically investigated using various characterization techniques, and the optimal heat-treatment condition for luminescence was determined to be 670 ℃ for 90 min. The optimal doping concentration（molar fraction） of Tb³⁺was 0.5%, beyond which concentration quenching occurs primarily due to quadrupole-quadrupole interactions. The energy transfer from Tb³⁺to Eu³⁺was observed in co-doped glass-ceramics. Within the temperature range of 293-493 K, co-doped glass-ceramic exhibited good fluorescence thermal stability with a thermal quenching activation energy of 0.24 eV and a chromaticity shift of 2.1×10^-2. Furthermore, this material demonstrated promising temperature sensing capabilities, with a maximum sensitivity of 5.7×10^-3K^-1and a thermal repeatability ratio of 96.6%.更多还原