Rare-earth ions incorporation into Lu2Si2O7 scintillator crystals: Electron paramagnetic resonance and luminescence study

被引：8

作者：

Buryi, M. ^{[1
]}

Laguta, V ^{[1
]}

Babin, V ^{[1
]}

Laguta, O. ^{[2
]}

Brik, M. G. ^{[3
,4
,5
,6
]}

Nikl, M. ^{[1
]}

机构：

[1] Czech Acad Sci, Inst Phys, Cukrovarnicka 10-112, Prague, Czech Republic

[2] Brno Univ Technol, Cent European Inst Technol, Purkynova 656-123, Brno 61200, Czech Republic

[3] Chongqing Univ Posts & Telecommun, CQUPT BUL Innovat Inst, Chongqing 400065, Peoples R China

[4] Chongqing Univ Posts & Telecommun, Coll Sci, Chongqing 400065, Peoples R China

[5] Univ Tartu, Inst Phys, W Ostwald1 1, EE-50411 Tartu, Estonia

[6] Jan Dlugosz Univ, Inst Phys, Armii Krajowej 13-15, PL-42200 Czestochowa, Poland

来源：

OPTICAL MATERIALS | 2020年 / 106卷

关键词：

LUTETIUM SILICATE SCINTILLATORS; SOLID-STATE; DEFECTS; GROWTH; ABSORPTION; ALUMINUM; IMPURITY; CENTERS; YTTRIUM; LPS;

D O I：

10.1016/j.optmat.2020.109930

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present work reports results of the electron paramagnetic resonance (EPR), optical absorption, radio- and photoluminescence (RL and PL) complex study of the Lu2Si2O7:Pr and Lu2Si2O7:Ce pymsilicate crystals. In both crystals, the EPR spectra demonstrate the presence of characteristic signals originating from the Yb3+, Er3+, Nd3+, Dy3+, Gd3+ and V3+ ions existing in the material as uncontrolled impurities. The corresponding spectra (except for Gd3+) have been analysed in detail and g-and hyperfine tensors are determined for all these ions for the first time in the lutetium pyrosilicate lattice. Optical absorption, RL and PL measurements in the Lu2Si2O7:Pr crystal have shown only the characteristic Pr3+ transitions. In addition, the Pr3+- Pr3+ energy transfer was observed and confirmed experimentally.

引用

页数：7

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