Luminescence characteristics of LuAG:Pr and YAG:Pr single crystalline films

被引：19
作者：
Gorbenko, V. [1 ]
Krasnikov, A. [2 ]
Nikl, M. [3 ]
Zazubovich, S. [2 ]
Zorenko, Yu. [1 ]
机构：
[1] Ivan Franko Natl Univ Lviv, UA-79017 Lvov, Ukraine
[2] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia
[3] Inst Phys AS CR, Prague 16253, Czech Republic
来源：
OPTICAL MATERIALS | 2009年 / 31卷 / 12期
关键词：
Pr3+-doped garnets; Single crystalline films; Luminescence; Scintillators;
D O I：
10.1016/j.optmat.2008.11.030
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Emission and excitation spectra and luminescence decay kinetics were studied for Pr3+-doped Lu3Al5O12 and Y3Al5O12 single crystalline films (SCF) grown by the liquid phase epitaxy method from a PbO-based flux. The influence of lead-induced centers on their scintillation characteristics was clarified. It was found that the influence of single Pb2+-based centers on the characteristics of Pr3+ centers due to the Pb2+ -> Pr3+ energy transfer was weak. However, an overlap of the emission spectra of single and dimer lead-induced centers with the emission spectrum of Pr3+ ions, and especially a strong overlap of the 4f-5d, absorption band of Pr3+ ions with the slow emission of localized excitons in the 290 nm band had a considerable influence on the scintillation characteristics of the Pr3+-doped SCF. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1805 / 1807
页数：3
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