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Peculiarities of luminescence and scintillation properties of YAP: Ce and LuAP:Ce single crystals and single crystalline films
被引:53
|作者:
Zorenko, Y.
[1
]
Gorbenko, V.
Konstankevych, I.
Voznjak, T.
Savchyn, V.
Nikl, M.
Mares, J. A.
Nejezchleb, K.
Mikhailin, V.
Kolobanov, V.
Spassky, D.
机构:
[1] Ivan Franko Natl Univ Lviv, Dept Elect, LOM, UA-79017 Lvov, Ukraine
[2] Acad Sci Czech Republ, Inst Phys, Prague 16253, Czech Republic
[3] Crytur Ltd, Turnov 51119, Czech Republic
[4] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119899, Russia
关键词:
perovskites;
single crystal and single crystalline films;
Ce3+ ions;
scintillators;
luminescence;
D O I:
10.1016/j.radmeas.2007.01.046
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:
Luminescent properties and the energy transfer from host to Ce3+ ions are analyzed in single crystalline films (SCF) of YAlO3:Ce (YAP:Ce), Y(1-x)Lu(x)AP:Ce (YLuAP:Ce) and LuAlO3:Ce (LuAP:Ce) perovskites in comparison with their single crystal (SC) analogues using the time-resolved luminescence spectroscopy under synchrotron radiation excitation. It is shown that the main peculiarity of luminescent properties of YAP:Ce, YLuAP:Ce and LuAG:Ce SCF is determined by the extremely low concentration Of Y-Al and Lu-Al antisite defects and vacancy-type defects in SCF as compared to SC. The advantages of phosphors based on (Y-Lu)AP:Ce SCF are due to the absence of emission and trapping centers in these SCF which are connected with the above mentioned bulk crystal defects. (C) 2007 Published by Elsevier Ltd.
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页码:528 / 532
页数:5
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