中文摘要：

以NaF和NH4HF2作为氟源·采用水热法制备了Er^3＋、Yb^3＋共掺杂的PbF2（PbF2：Er^3＋，Yb^3＋）上转换发光材料。在1064m激光激发下，得到较亮的绿色发光。利用X射线衍射和扫描电子显微镜对样品的物相和形貌进行了分析，并探讨了退火温度和稀土离子Er^3＋/Yb^3＋掺杂摩尔比对样品上转换发光特性的影响。结果表明，550℃退火48h时样品的发光强度最大；当Er^3＋/Yb^3＋离子掺杂摩尔比为1：9时，发光效果最好。

英文摘要：

Er^3＋,Yb^3＋ co-doped PbF2 （PbF2：Er^3＋,Yb^3＋） matrix up-conversion luminescence materials were prepared by a hydrothermal method with the NaF and NHaHF2 as fluorine source. A bright green light appears under 1 064 nm laser excitation at room temperature The phase and morphology of the materials were characterized by scanning electron microscopy and X-ray diffraction, respectively. The influences of annealing temperature and rare earth ions Er^3＋/Yb^3＋doping mole ratio on the up-conversion luminescence of PbF2：Er^3＋,Yb^3＋ sample were investigated. The results show that the PbF2：Er^3＋,Yb^3＋ sample has a greater luminescence intensity when the annealing temperature and reaction time are 550℃ and 48 h. The optimum luminescence properties of the PbF2：Er^3＋,Yb^3＋ sample prepared can be obtained when the doping mole ratio of Er^3＋/Yb^3＋ ions is 1：9.