Cao．7Sro．18-1.5x（WO4）0.5（MoO4）0．5：0．08Eu^3＋，xTb^3＋

摘要

采用高温固相法合成系列Cao．7Sro．18-1.5x（WO4）0.5（MoO4）0．5：0．08Eu^3＋，xTb^3＋红色荧光粉，对其晶体结构和荧光性质进行X射线衍射（XRD）、荧光光谱（PL）表征．确定荧光粉的合成条件，同时研究共激活剂Tb^3＋和助熔剂H3BO3对荧光粉光谱性能的影响．结果表明：900℃焙烧2h荧光粉发光性能较好，共激活剂Tb^3＋和助熔剂H，BO，较明显增大荧光粉的发光强度．所制备的荧光粉均可以被近紫外光（395nm）和蓝光（465nm）有效激发，发射峰位于616nm（Eu^3＋的5D0→7F2跃迁）．%Abstract： Thered phosphors of Cao.7Sro.18-1.5x（WO4）0.5（MoO4）0.5：0.08Eu^3＋,xTb^3＋rn were synthe- sized by high-temperature solid-state reaction. Structure and photoluminescence properties of the samples were characterized by XRD and fluorescence spectrophotometer, respectively. Meanwhile the influence of Tb^3＋ and H3BO3 on the luminescent properties of phosphors was studied in detail. The emissions spectra showed that all the samples could be effectively excited by UV-light 395 nm and blue-light 465 nm and e- mit red light at 616 nm attributed to 5D0-→TF2 transfer of Eu^3＋.