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

页码：39 / 43

页数：5

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