中文摘要：

以Zn（NO3）2·2H2O，CO（Nn2h，Eu（NO3）3·6H2O和LiNO3·2H2O为原料，采用均相共沉淀法制备了Eu，Li共掺的纳米ZnO：（Eu，Li）荧光粉。用扫描电镜、x射线衍射、热重一差示扫描量热分析等表征了样品的结构、形貌。研究了Eu与Li的摩尔比和煅烧温度对样品的发光性能的影响。结果表明：合成的ZnO：（Eu，Li）粉体具有六方纤锌矿结构的ZnO晶型，粒度分布均匀，粒径尺寸为20-40um。当Eu与Li的摩尔比为3：1时，700℃下煅烧2h的样品发光强度最高。在发射光谱中样品的发射峰位于570-620nm，其发射主峰位于611nm处，对应于Eu的^5D0→^7F2跃迁。

英文摘要：

Eu, Li co-doped ZnO：（Eu, Li） nanopowders were synthesized by the homogeneous co-precipitation method using Zn（NO3）E-2H2O, CO（NH2）2, Eu（NO3）3·6H2O and LiNO3·2H2O as raw materials. The structure and morphology of the samples were characterized by scanning electron microscopy, X-ray diffraction and thermogravimetry-differential scanning calorimetry analysis. The effects of the mole ratio of Eu to Li and calcination temperature on photoluminescence properties of samples were investigated. The results show that the ZnO：（Eu, Li） nanopowder is a pure hexagonal wurtzite structure of ZnO crystal. The particle sizes of the nanopowders are distributed uniformly in the range of 20-40 nm. When the mole ratio of Eu to Li is 3：1, the luminescence intensity of the nanopowder sample calcined at 700℃ for 2 h increases to the maximum. The emission peak of the nanopowders in the emission spectra are located at 570-620 nm, and the maximum emission peak is at 611 nm with 463 nm excitation, corresponding to the ^5D0→^7F2 transition of Eu.