Eu^(3+)掺杂的ZnO/ZnS荧光粉的制备与发光性能  

Preparation and Luminescence Properties of Eu^(3+)Doped ZnO/ZnS Phosphors

作　　者：张岚 王喜贵[2] ZHANG Lan;WANG Xi-gui(Wulanchabu Medical College,Inner Mongolia,Wulanchabu 012000,China;College of Chemistry and Environment Science,Inner Mongolia Normal University,Huhhot 010022,China)

机构地区：[1]乌兰察布医学高等专科学校,内蒙古乌兰察布012000 [2]内蒙古师范大学化学与环境科学学院,内蒙古呼和浩特010022

出　　处：《光谱学与光谱分析》2025年第5期1277-1282,共6页Spectroscopy and Spectral Analysis

基　　金：内蒙古自治区高等学校科学研究项目(NJZY13046);国家自然科学基金项目(21261010)资助。

摘　　要：采用溶胶-凝胶法和沉淀法相结合制得了Eu^(3+)掺杂ZnO/ZnS的红色荧光粉。利用XRD、FTIR、TEM和EDS等设备对所得系列红色荧光粉样品进行实测。测试结果表明红色荧光粉含有ZnO和ZnS,它们属于六方相结构。利用荧光光谱仪测试,探讨了红色荧光粉的发光性能和发光机理。结果表明,ZnO和ZnS结合可形成新能带结构和增大复合概率,从而提高了红色荧光粉的发光性能。荧光粉中Eu^(3+)位于无反演中心格位,以电偶极跃迁(^(5)D_(0)-^(7)F_(2))为主。荧光粉的最佳Eu^(3+)掺杂量0.1(摩尔分数),最佳退火温度800℃。Eu^(3+)doped sol-gel-precipitation methods prepared ZnO/ZnS red phosphors.XRD,FTIR,TEM,and EDS test methods characterized the structure of the red phosphors at different temperatures.The results showed that the red phosphors contain ZnO and ZnS,samples of the hexagonal phase structure.The luminescent properties and mechanism of the red phosphors were discussed by fluorescence spectrometer.The results showed that combining ZnO and ZnS can form new band structures and increase the composite probability,thus improving the luminescent properties of the red phosphors.Eu^(3+)was located in the non-inversion central lattice in the phosphors,which is dominated by the electric dipole transition^(5)D_(0)-^(7)F_(2).The optimal Eu^(3+)doping amount of the phosphor is 0.1(molar fraction),and the optimal annealing temperature is 800℃.

关 键 词：溶胶凝胶-沉淀法 ZnO/ZnS:Eu^(3+) 发光性能 

分 类 号：O6[理学—化学]