The features of energy transfer to the emission centers in ZnWO4 and ZnWO4:Mo

被引：22

作者：

Krutyak, N. R. ^{[1
]}

Mikhailin, V. V. ^{[1
,2
]}

Vasil'ev, A. N. ^{[2
]}

Spassky, D. A. ^{[2
,3
]}

Tupitsyna, I. A. ^{[4
]}

Dubovik, A. M. ^{[4
]}

Galashov, E. N. ^{[5
]}

Shlegel, V. N. ^{[5
]}

Belsky, A. N. ^{[6
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Synchrotron Radiat Lab, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia

[3] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia

[4] NAS Ukraine, Inst Scintillat Mat, UA-61001 Kharkov, Ukraine

[5] Nikolaev Inst Inorgan Chem SB RAS, Novosibirsk 630090, Russia

[6] Univ Lyon 1, CNRS, Inst Light & Matter, F-69622 Lyon, France

来源：

JOURNAL OF LUMINESCENCE | 2013年 / 144卷

关键词：

Zinc tungstate; Luminescence; Energy transfer; Cryogenic scintillator; Onsager sphere; ELECTRON-HOLE PAIRS; DOUBLE-BETA-DECAY; SINGLE-CRYSTALS; AB-INITIO; METAL TUNGSTATES; LUMINESCENCE; SCINTILLATION; ABSORPTION; SPECTROSCOPY; PERFORMANCE;

D O I：

10.1016/j.jlumin.2013.06.039

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The process of energy transfer to the emission centers is studied in ZnWO4 and ZnWO4:Mo single crystals in the temperature range 10-300 K. A numerical simulation describing the process is presented; the temperature dependence of energy transfer efficiency to the intrinsic emission centers in ZnWO4 is shown to be defined by the modification of Onsager sphere radius. A competitive role of radiative relaxation channel related to the impurity of molybdenum is studied in ZnWO4:Mo. It is shown that below 60 K the energy transfer to the MoO5 emission centers by free charge carriers terminates due to the self-trapping of holes at WO6 complexes. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：105 / 111

页数：7

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