Eu^(3+)掺杂SiO_2-B_2O_3-NaF玻璃的制备及发光性质  

Synthesis and Luminescence Properties of Eu-doped SiO_2-B_2O_3-NaF Glass

作　　者：王喜贵[1] 吴红英[1] 赵斯琴[1] 翁诗甫[2] 吴瑾光[2] 

机构地区：[1]内蒙古师范大学化学系,呼和浩特010022 [2]北京大学化学与分子工程学院,稀土材料化学及应用国家重点实验室,北京100871

出　　处：《无机化学学报》2004年第3期317-320,238,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家重点基础研究发展规划资助项目(No.G1998061311);国家自然科学基金资助项目(No.20161001;No.200235);内蒙古自治区自然科学基金资助项目(No.20010901鄄14);内蒙古师范大学和北京大学合作项目(No.)。

摘　　要：The Eu-doped SiO2-B2O3-NaF glass was prepared by sol-gel process, using tetraethoxy Silicane, boric acid and sodium fluoride as starting materials, 0.10 mol·L-1 EuCl3 solution as the dopant. The luminescent properties of Eu3+ doped SiO2-B2O3-NaF phosphors were investigated. The phosphors showed prominent luminescence in pink, the strong emission of Eu3+ comes from electronic transition of 5D0-7F1(591 nm)and 5D0-7F2(615 nm),which derived from two transition modes of magnetic-dipole and electric-dipole .The peak intensity of 591nm in SiO2-B2O3-NaF matrix is much stronger than it in the other matrixes, it means that SiO2-B2O3-NaF has sensitization on the transition of 5D0-7F1 (Eu3+). If there are broad bonds in the range of 275~380 nm in the excitation spectrum of Eu3+ -doped SiO2-B2O3-NaF glass, the emission peak intensity should be intensified. It is because the electron migration CT band of O2--Eu3+. For all Eu3+ concentrations used, the investigation found that when the mass of fraction got to 29.19×10-3, the luminescence intensity reached the summit. And there is a phenomenon of concentration quenching. Investigation with the same concentration of Eu3+ at different annealed temperature, we found that the sample annealed at 400 ℃, the luminescence intensity achieved its maximum value, and Eu3+ in this matrix had a phenomenon of temperature quenching. The structural characterization of these luminescent materials was carried by used XRD and TEM. The result showed that the phosphor was in amorphous phase.The Eu-doped SiO2-B2O3-NaF glass was prepared by sol-gel process, using tetraethoxy Silicane, boric acid and sodium fluoride as starting materials, 0.10 mol·L-1 EuCl3 solution as the dopant. The luminescent properties of Eu3+ doped SiO2-B2O3-NaF phosphors were investigated. The phosphors showed prominent luminescence in pink, the strong emission of Eu3+ comes from electronic transition of 5D0-7F1(591 nm)and 5D0-7F2(615 nm),which derived from two transition modes of magnetic-dipole and electric-dipole .The p...

关 键 词：Eu3+ 发光性质 SiO2鄄B2O3鄄NaF玻璃 

分 类 号：TQ171[化学工程—玻璃工业]