用高温固相法合成了不同掺杂浓度的Li+、Na+和Eu3+共掺Lu2O3闪烁体发光材料, 使用XRD进行结构表征, 用扫描电镜观察了样品形貌, 测量了激发光谱、发射光谱, 分析了Li+、Na+和Eu3+的掺杂浓度以及温度对合成样品发光强度的影响。结果显示, Li+、Na+掺杂摩尔分数分别为2.5％和1％, 在800 ℃空气中煅烧2 h制备的Lu2O3: 5％Eu3+样品的发光最强。在同样条件下, 比单掺2.5％Na+的样品发光强度提高1.89倍, 比单掺2.5％Li+的样品发光强度提高3.97倍, 比不掺Li+和Na+的样品发光强度提高6.43倍。

Li+, Na+ and Eu3+ co-doped Lu2O3 phosphors were synthesized by the high temperature solid-state reaction. The structure of the sample was characterized by XRD, the morphology was observed with scanning electron microscope, the excitation spectra and emission spectra were measured, and the effects of Li+, Na+ and Eu3+ doping concentration and the calcined temperature on the luminescence intensity of the synthesized samples were analyzed. The results show that the emission of the sample with 2.5%Li+, 1%Na+ and 5%Eu3+ co-doped Lu2O3 is the strongest in the four samples calcined at 800 ℃ in the air for 2 h. In the same condition, the luminous intensity of Lu2O3: 5％Eu3+,2.5%Li+, 1%Na+ is 1.89 times than that only with 2.5%Na+ doping, 3.97 times than that only with 2.5%Li+ doping, and 6.43 times than that without Li+ and Na+ doping.