Tb^(3+)自敏化效应与Gd^(3+)-Tb^(3+)能量转移对硅酸盐玻璃发光性能的影响  

Effects of Tb^(3+) Self-sensitization and Gd^(3+)-Tb^(3+) Energy Transfer on Luminescent Properties of Silicate Glasses

作　　者：祖成奎[1] 陈江[1] 赵慧峰[1] 韩滨[1] 刘永华[1] 王衍行[2] 

机构地区：[1]中国建筑材料科学研究总院石英与特种玻璃研究所,北京100024 [2]北京科技大学新金属材料国家重点实验室,北京100083

出　　处：《玻璃与搪瓷》2009年第3期6-9,19,共5页Glass & Enamel

基　　金：国家自然科学基金资助项目(No.50772103)

摘　　要：研究了Tb3+自敏化效应与Gd3+-Tb3+能量转移对硅酸盐玻璃发光性能的影响。结果表明,随着Tb3+掺杂量的增加,Tb3+的400～450 nm蓝色荧光发射减弱,而485 nm和545 nm绿光发射增强。Tb3+掺杂硅酸盐玻璃中,Tb3+之间存在能量转移,产生自敏化效应,这种转移是由Tb3+之间电偶极-电四极的相互作用引起的共振能量转移。Gd3+通过Gd3+-Tb3+间的能量转移对Tb3+的发光起敏化作用,这种能量转移主要是偶极与偶极相互作用引起的共振转移。The effect of Tb3＋ self- sensitization and Gd3 ＋ -Tb3 ＋ energy transfer on luminescent properties of Tb3＋ doped silicate glasses was investigated. Results showed that the intensity of blue emission decreases, but the intensity of green emission increases with increasing of Tb3 ＋ concentration. Tb3 ＋ self - sensitization takes place by the energy transfer in the manner of resonance between Tb3 ＋ in silicate glasses , which is caused by the interaction between electric dipole and electric quadrupole C,d3＋ can enhance manner from Gd3 ＋ the luminescence of Tb3＋ in silicate glasses to Tb3 ＋ emission center due to the interaction by the energy transfer in resonance between electric dipoles.

关 键 词：硅酸盐玻璃 稀土离子掺杂 发光 能量转移 

分 类 号：TQ171.73[化学工程—玻璃工业]