助熔剂硼酸对红色荧光粉(Y,Gd)BO_3:Eu^(3+)结构及发光性能的影响  

Influence of H_3BO_3 as the Flux on the Structure and Luminescence Characteristics of(Y,Gd)BO_3:Eu^(3+)Phosphor

作　　者：王娟娟[1,2] 袁曦明[1,2] 李予晋[3] 尚淑娟[1,2] 庞明[1,2] 陈雄[1,2] 

机构地区：[1]中国地质大学教育部纳米矿物材料及应用工程研究中心,武汉430074 [2]中国地质大学材料科学与化学工程学院,武汉430074 [3]吉林大学测试中心,长春130026

出　　处：《材料导报》2009年第24期5-8,共4页Materials Reports

基　　金：湖北省科技攻关计划项目(2005AA105A05);武汉市重大科技项目(20041003068-01)

摘　　要：以Y_2O_3、Gd_2O_3、Eu_2O_3和H_3BO_3为原料,草酸为沉淀剂,采用共沉淀法合成了PDP用红色荧光粉(Y,Gd)BO_3:Eu^(3+)。着重研究了H_3BO_3作助熔剂对荧光粉(Y,Gd)BO_3:Eu^(3+)结构、发光性能、平均粒径和形貌的影响。结果表明,添加过量的H_3BO_3作助熔剂有利于荧光粉的晶化,能提高荧光粉的相对发光强度,减小荧光粉的平均粒径,同时还能使颗粒变得均匀;H_3BO_3的最佳补偿量为3%。Red phosphor （Y, Gd） BO3 ： Eu^3＋ is prepared by coprecipitation method with Y2 O3, Gd2 O3, Eu2O3 and H3BO3 as the starting material, oxalic acid as precipitant. The effects of structure, luminescence characteristics, average particle size and morphology of the （Y, Gd）BO3 ： Eu^3＋ phosphor are emphatically studied with H3 BO3 as the flux. The results indicate that the flux can help crystallize the phosphor, improve the relative luminous intensity and decrease the mean grain size. The addition of the flux can also make the particle uniform. The optimum addition of the H3BO3 is 3wt%.

关 键 词：(Y Gd)BO_3:Eu^3+荧光粉 H_3BO_3 助熔剂 结构 发光性能 

分 类 号：TN104.3[电子电信—物理电子学] S682.33[农业科学—观赏园艺]