Czochralski growth and optical properties of SrB2O4:Eu2+ single crystals

被引：4
作者：
Glowacki, M. [1 ]
Ryba-Romanowski, W. [2 ]
Lisiecki, R. [2 ]
Kowalski, R. [2 ]
Berkowski, M. [1 ]
Solarz, P. [2 ]
机构：
[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
[2] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
来源：
JOURNAL OF LUMINESCENCE | 2016年 / 169卷
关键词：
Europium 2+; Strontium borates; Single crystals; Optical studies; LUMINESCENCE;
D O I：
10.1016/j.jlumin.2015.02.051
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The SrB2O4 single crystal doped with 0.5 at% of europium has been grown by the Czochralski method. The Eu2+ broad emission in bulk crystal has been observed, upon excitation by a femtosecond laser. However, the efficiency of this emission does not exceed a value of 23% at 5 K, assessed in the frame of the Inokuti-Hirayama model. The critical distance R-0 was calculated to be 20.6 angstrom, C-da 5.40 x 10(-45) m(6)/s for S=6. The calculated radiative lifetime based on the Inokuti-Hirayama equation is 14.28 ns. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：807 / 810
页数：4
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