Influence of yttrium Content on the Ce1 and Ce2 Luminescence Characteristics in (Lu1-xYx)2SiO5: Ce Single Crystals

被引：20

作者：

Jary, V. ^{[1
]}

Nikl, M. ^{[2
]}

Mihokova, E. ^{[2
]}

Mares, J. A. ^{[2
]}

Prusa, P. ^{[1
]}

Horodysky, P. ^{[3
]}

Chewpraditkul, W. ^{[4
]}

Beitlerova, A. ^{[2
]}

机构：

[1] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague 16253, Czech Republic

[2] ASCR, Inst Phys, Prague 16253, Czech Republic

[3] Crytur Ltd, Turnov 51101, Czech Republic

[4] KMUTT, Dept Phys, Bangkok 10140, Thailand

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2012年 / 59卷 / 05期

关键词：

Oxide compounds; photoluminescence; scintillation detectors; OPTICAL-PROPERTIES; RARE-EARTH; LSO-CE; SCINTILLATION; YSO; THERMOLUMINESCENCE; LYSO; GROWTH; IONS; RAY;

D O I：

10.1109/TNS.2012.2190940

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigate the luminescence and scintillation characteristics of highly efficient cerium-doped scintillators, lutetium-(yttrium) orthosilicate (Lu1-xYx)(2)SiO5 : Ce, x = 0 - 1). The radioluminescence, photoluminescence excitation (PLE) and emission (PL) spectra of the Ce1, Ce2 centres as well as the decay curves and their temperature dependences are measured in the 80-500 K range. Light yield values are provided as well. The influence of yttrium concentration on the Ce1, Ce2 luminescence characteristics is demonstrated. With increasing yttrium content the onset of the Ce1 and Ce2 decay time decrease as well as the Ce1, Ce2 delayed recombination integrals increase shift to higher temperatures. The 5d(1) thermally induced excited-state ionization of both Ce1 and Ce2 centres is confirmed and studied by purely optical methods.

引用

页码：2079 / 2084

页数：6

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