Influence of lead-related centers on luminescence of Ce3+ and Pr3+ centers in single crystalline films of aluminium perovskites and garnets

被引：17
作者：
Babin, V. [1 ]
Gorbenko, V. [2 ]
Krasnikov, A. [1 ]
Makhov, A. [1 ]
Nikl, M. [3 ]
Zazubovich, S. [1 ]
Zorenko, Yu. [2 ]
机构：
[1] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia
[2] Ivan Franko Natl Univ Lviv, UA-79017 Lvov, Ukraine
[3] AS CR, Inst Phys, Prague 16253, Czech Republic
来源：
RADIATION MEASUREMENTS | 2010年 / 45卷 / 3-6期
关键词：
Luminescence; Aluminium perovskites and garnets; Single crystalline films; SCINTILLATION PROPERTIES; DEFECTS CREATION; FLUORESCENCE; LUAP;
D O I：
10.1016/j.radmeas.2009.09.007
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Luminescence characteristics of Ce3+- and Pr3+-doped aluminium perovskite (LuAlO3, YAlO3) and garnet (Lu3Al5O12, Y3Al5O12) single crystalline films, prepared by the liquid phase epitaxy method with the use of the PbO-based flux, were investigated by the time-resolved spectroscopy methods in the 80-300 K temperature range. The influence of various lead-related centers on the characteristics of the Ce3+- and Pr3+-trelated luminescence centers was studied. It was found that the presence of lead-related centers in the single crystalline films results in a decrease of the quantum efficiency and appearance of undesirable slow components in the luminescence decay kinetics. The possibilities of improving the scintillation characteristics of the single crystalline films were considered. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：415 / 418
页数：4
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