Energy conversion in LiSrPO4 doped with Pr3+ ions

被引：15
|
作者：
Pustovarov, Vladimir A. [1 ]
Ivanovskikh, Konstantin, V [1 ]
Khatchenko, Yulya E. [1 ]
Shi, Qiufeng [2 ]
Bettinelli, Marco [3 ,4 ]
机构：
[1] Ural Fed Univ, Inst Phys & Technol, 19 Mira St, Ekaterinburg 620002, Russia
[2] Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Shanxi, Peoples R China
[3] Univ Verona, Dept Biotechnol, Lab Luminescent Mat, Str Le Grazie 15, I-37134 Verona, Italy
[4] UdR Verona, INSTM, Str Le Grazie 15, I-37134 Verona, Italy
来源：
RADIATION MEASUREMENTS | 2019年 / 123卷
关键词：
LiSrPO4; 4f(1)5d; 4f(2); transitions; Defects; Energy transfer; VUV spectroscopy; X-ray excited luminescence; Pulse cathode-luminescence; Decay kinetics; TSL glow curves; UV LUMINESCENCE; CRYSTALS; SCINTILLATORS; EXCITATION;
D O I：
10.1016/j.radmeas.2019.01.016
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：
We report on the time-resolved luminescence spectroscopic characterization of LiSrPO4 doped with Pr3+-ions, that we found potentially attractive for scintillation applications. The spectroscopic study included measurements of photoluminescence, X-ray excited luminescence, thermally stimulated luminescence and time-resolved pulse cathodoluminescence spectra. In addition, luminescence decay kinetics were studied upon high-frequency X-ray and pulse cathode beam excitation. LiSrPO4:Pr3+ showed Pr3+ emission connected with intraconfigurational 4f(2)-> 4f(2) and interconfigurational 4f(1)5d -> 4f(2) transitions. The presence of defects was shown with thermoluminescence measurements and suggested to be the main reason for delayed recombination of charge carriers on Pr3+ 4f(1)5d states. Some peculiarities of host-to-impurity energy transfer are discussed.
引用
收藏
页码：39 / 43
页数：5
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