Electronic structure of Ce3+ multicenters in yttrium aluminum garnets

被引：39
|
作者：
Przybylinska, H. [1 ]
Ma, Chong-Geng [2 ]
Brik, M. G. [2 ]
Kaminska, A. [1 ]
Sybilski, P. [1 ]
Wittlin, A. [1 ,3 ]
Berkowski, M. [1 ]
Zorenko, Yu. [4 ]
Gorbenko, V. [5 ]
Wrzesinski, H. [4 ]
Suchocki, A. [1 ,4 ]
机构：
[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
[2] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia
[3] Cardinal Stefan Wyszynski Univ Warsaw, PL-01815 Warsaw, Poland
[4] Kazimierz Wielki Univ, Inst Phys, PL-85072 Bydgoszcz, Poland
[5] Ivan Franko Natl Univ Lviv, Dept Elect, UA-70017 Lvov, Ukraine
来源：
APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 24期
关键词：
SINGLE-CRYSTALLINE FILMS; LANTHANIDE IONS; LUMINESCENCE; YAG; PHOSPHORS; SPECTROSCOPY; SCINTILLATOR; SPECTRA;
D O I：
10.1063/1.4812190
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Low temperature, infrared, and visible-ultraviolet absorption spectra of yttrium aluminum garnet (YAG) bulk crystals and epitaxial layers doped with Ce are presented. In the region of intra-configurational 4f-4f transitions, the spectra of the bulk YAG crystals exhibit existence of at least two different Ce3+ related centers, a major one associated with Ce in regular positions substituting yttrium and also additional center, due to so called antisite positions in the garnet host, i.e., ions in the Al positions. Crystal field analysis based on exchange charge model exhibit excellent agreement with the experimental data for major Ce3+ center. (C) 2013 AIP Publishing LLC.
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页数：4
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