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助熔剂硼酸对红色荧光粉（Y,Gd）BO₃:Eu³⁺结构及发光性能的影响

Influence of H₃BO₃ as the Flux on the Structure and Luminescence Characteristics of（Y,Gd）BO₃:Eu³⁺Phosphor

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【Author】 WANG Juanjuan~(1,2),YUAN Ximing~(1,2),LI Yujin~3,SHANG Shujuan~(1,2), PANG Ming~(1,2),CHEN Xiong~(1,2) (1 Engineering Research Center of Nano-Mineral Materials and Application of the Ministry of Education,China University of Geosciences,Wuhan 430074;2 Faculty of Materials Science and Chemical Engineering,China University of Geosciences, Wuhan 430074;3 Testing Center of Jilin University,Changchun 130026)

【机构】中国地质大学教育部纳米矿物材料及应用工程研究中心；中国地质大学材料科学与化学工程学院；吉林大学测试中心；

【摘要】以Y₂O₃、Gd₂O₃、Eu₂O₃和H₃BO₃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）BO₃:Eu³⁺。着重研究了H₃BO₃作助熔剂对荧光粉（Y,Gd）BO₃:Eu³⁺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H₃BO₃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;H₃BO₃的最佳补偿量为3%。更多还原

【Abstract】 Red phosphor（Y,Gd）BO₃:Eu³⁺ is prepared by coprecipitation method with Y₂O₃,Gd₂O₃,EU₂O₃ and H₃BQ₃ as the starting material,oxalic acid as precipitant The effects of structure,luminescence characteristics, average particle size and morphology of the（Y,Gd）BO₃:Eu³⁺ phosphor are emphatically studied with H₃BO₃ 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%.更多还原