Bi^(3+)和Ce^(3+)掺杂对Ca_(0.99)(WO_4)_(0.5)(MoO_4)_(0.5)∶0.01Eu^(3+)荧光粉体结构与发光性能的影响  

Influence of Bi^(3+) and Ce^(3+) doping on structure and fluorescence property of Ca_(0.99)(WO_4)_(0.5)(MoO_4)_(0.5)∶0.01Eu^(3+)

作　　者：李慧[1] 李燕[1] 毛晓明[1] 梁亚琴[1] 

机构地区：[1]长治学院化学系,长治046011

出　　处：《化工新型材料》2015年第12期178-180,共3页New Chemical Materials

基　　金：山西省自然科学基金资助项目(2013011040-8)

摘　　要：采用高温固相法,分别以Bi ^(3+)和Ce^(3+)为掺杂离子,制备了红色荧光材料Ca_(0.99)(WO_4)_(0.5)(MoO_4)_(0.5)∶0.01Eu^(3+)。研究了Bi ^(3+)和Ce^(3+)的不同掺杂量分别对该红色荧光材料的相结构、显微结构和荧光性能的影响。结果表明:Bi ^(3+)、Ce^(3+)的掺入并不影响Ca_(0.99)(WO_4)_(0.5)(MoO_4)_(0.5)∶0.01Eu^(3+)晶相的形成,合成的荧光粉体结构均为四方纯相。当Bi ^(3+)摩尔掺杂量在1%(摩尔百分数,下同)~4%范围内逐渐增加时,粉体的荧光强度先增强而后降低,一定量的Bi ^(3+)掺杂能够改善粉体的形貌,而Ce^(3+)摩尔掺杂量在1%~4%范围内变化时,粉体的荧光性能呈降低趋势,粉体的颗粒不均匀,粉体表面有缺陷。A series of Ca（0.99）（WO4）（0.5）（MoO4）（0.5）∶0.01Eu^3＋red phosphors with respectively Bi^3＋or Ce^3＋as dopant were prepared by high temperature solid state method.The effects of different content of Bi^3＋,Ce^3＋as dopant on the phase structure,surface morphology and luminescence properties of the system were studied.The results showed that the doped content of Bi^3＋and Ce^3＋had no influence on the form of Ca（0.99）（WO4）（0.5）（MoO4）（0.5）∶0.01Eu^3＋and the phosphors had quartet pure phase structure.The luminescence intensity increased firstly and then decreased by doping the content of Bi^3＋from1mol%to 4mol%.The mount of Bi^3＋can improve the surface morphology.The Ce^3＋dopant in the range from 1mol% to4mol% made the fluorescence properties reduced,the particles of phosphors were not well dispersed,and phosphors had surface defects.

关 键 词：Ca0.99(WO4)0.5(MoO4)0.5∶0.01Eu3+ 掺杂离子 相结构 荧光性能 

分 类 号：TQ422[化学工程] TB383.3[一般工业技术—材料科学与工程]