Sm^(3+)在玻璃中的发光以及Sb^(6+)、Ce^(6+)、Gd^(3+)对Sm^(3+)发光性质的影响

LUMINESCENCE OF Sm^(3+) IN GLASSES AND EFFECT OF Sb^(3+) ,Ce(3+) AND Gd^(3+) IONS ON LUMINESCENCE PROPERTIES OF Sm^(3+) ION

本文研究了单掺(Sm^(3+),Ce^(3+)、Gd^(3+).Sb^(3+)、双掺(Sm^(3+)+Ce^(3+)、Sm^(3+)+Gd^(3+),Sm^(3+)+Sb^(3+))和兰掺(Sm^(3+)+Gd^(3+)+Ce^(3+))约四十余种不同玻璃的发射谱和激发谱.探讨了玻璃成份和掺杂离子浓度对Sm^(3+)发光性质的影响以及Ce^(3+),Gd^(3+)、Sb^(3+)、Ce^(3+)+Gd^(3+)对Sm^(3+)的敏化作用。

RE glass is a kind of potentiaily valuable luminescent material.More than forty types of various glass doped with various concentration of Ce3+, Gd3+ Sb3+ ions and co-doped with Ce3++Gd3+ ions were investigated. The influence of glass compositions and concentrations of Sm3+ ion on the luminescence of Sm3+ ions and the sensitization effect of Ce3+ Gd3+, Sb3+ and Ce3+ + Gd3+ on Sm3+ ion were also studied.The results indicate that the luminescence of Sm3+ depends not only on the composition of qlass but also on the concentration of Sm3+ ion. The concentration quenching occurs at 2wt% of Sm3+ in borate glass. However,concentration guenching was not found in silicate glass and phosphate glass. It is possible that their critical quenching concentrations are larger than 3wt%. The ions of Ce3+, Gd3+, Sb3+ can sensitize the Sm3+ luminescence. When sensitized by Ce3+, Gd3+, Sb3+ and Ce3++ Gd3+, the emission intensity of Sm3+ increased by a factor of 1.5, 2.0, 3.7, and 2.6, respectively.