Spectroscopy and transfer processes in LuxGd1-xAlO3:Ce scintillators

被引：26

作者：

Mares, JA ^{[1
]}

Nikl, M ^{[1
]}

Mihokova, E ^{[1
]}

Kvapil, J ^{[1
]}

Giba, J ^{[1
]}

Blazek, K ^{[1
]}

机构：

[1] PRECIOSA CRYTUR LTD,CR-51119 TURNOV,CZECH REPUBLIC

来源：

JOURNAL OF LUMINESCENCE | 1997年 / 72-4卷

关键词：

spectroscopy; transfer processes; Ce-doped scintillators; perovskites;

D O I：

10.1016/S0022-2313(96)00311-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Spectroscopic properties and energy transfer processes in Ce3+-doped RE3+AlO3 orthoaluminates (for RE3+ = Lu3+, Gd3+ or Y3+) Or for the mixed LuxY1-x and LuxGd1-x are presented and summarised. Generally, spectroscopic properties of these crystals are very similar but in their Ce3+ fluorescence and scintillation decay slow decay components appear. Temperature dependence of Ce3+ fluorescence decays in LuxGd1-xAlO3:Ce crystals show Ce3+-->Gd3+ nonradiative energy transfer followed by the opposite transfer Gd3+-->Ce3+ (including migration through Gd3+ sublattice) which is responsible for slow Ce3+ fluorescence decay component. Energy barrier between Ce3+ and Gd3+ interacting levels is similar to 70 meV.

引用

页码：737 / 739

页数：3

共 4 条

[1] SCINTILLATOR MATERIALS [J].