BaGeTeO₆: Nd³⁺/Yb³⁺/Ho³⁺ green up-conversion phosphors were synthesized using the high-temperature solid-state reaction method. The optimal doping concentrations for the three dopant ions Nd³⁺, Yb³⁺, and Ho³⁺ were determined to be 1 mol%, 6 mol%, and 0.8 mol%, respectively, through the method of controlling variables. By analyzing the dependence of the up-conversion luminescence intensity on the pump current of the 980 nm laser, it was found that the green and red up-conversion emissions of Ho³⁺ ions under 980 nm laser excitation were both two-photon processes. Furthermore, the influence of temperature on the up-conversion luminescent properties of BaGeTeO₆: Nd³⁺/Yb³⁺/Ho³⁺ green up-conversion phosphors under 980 nm laser excitation was investigated, and the temperature sensing properties of Ho³⁺ ions were discussed. The results indicated that, at room temperature and higher temperatures, both the red and green up-conversion emissions of the sample were two-photon processes. Within the range of excitation current used in the experiment, the ratio of red to green up-conversion luminescence intensity of Ho³⁺ ions was independent of the laser excitation current but correlated with the sample temperature. In the temperature range of 303–723 K, the ratio of red to green up-conversion luminescence intensity of Ho³⁺ ions exhibited a nonlinear relationship with temperature. Comparing the temperature sensing sensitivity of Ho³⁺ in different matrices, the results indicated that the sample possessed high temperature sensing sensitivity.

采用高温固相反应法合成了BaGeTeO ₆ :Nd ³⁺ /Yb ³⁺ /Ho ³⁺绿色上转换荧光粉。通过控制变量的方法确定了Nd ³⁺ 、Yb ³⁺和Ho ³⁺三种掺杂离子的最佳掺杂浓度分别为1 mol%、6 mol%和0.8 mol%。通过分析上转换发光强度对980 nm激光器泵浦电流的依赖性，发现Ho ³⁺离子在980 nm激光激发下的绿光和红光上转换发射均为双光子过程。进一步研究了温度对BaGeTeO ₆ : Nd ³⁺ /Yb ³⁺ /Ho ³⁺绿色上转换荧光粉在980 nm激光激发下上转换发光性能的影响，以及Ho ³⁺的温度传感性能离子进行了讨论。结果表明，在室温和更高温度下，样品的红色和绿色上转换发射都是双光子过程。在实验所用的激发电流范围内，Ho ³⁺离子的红绿上转换发光强度比值与激光激发电流无关，但与样品温度相关。在303~723 K温度范围内，Ho ³⁺离子红绿上转换发光强度比与温度呈现非线性关系。 比较Ho ³⁺在不同基体中的感温灵敏度，结果表明该样品具有较高的感温灵敏度。