Low temperature luminescence of ZnMoO4 single crystals grown by low temperature gradient Czochralski technique

被引：45

作者：

Spassky, D. A. ^{[1
]}

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

Savon, A. E. ^{[2
]}

Galashov, E. N. ^{[3
]}

Shlegel, V. N. ^{[3
]}

Vasiliev, Ya. V. ^{[3
]}

机构：

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

[2] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia

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

来源：

OPTICAL MATERIALS | 2012年 / 34卷 / 11期

关键词：

Zinc molybdate; Low temperature gradient Czochralski; technique; Luminescence; Scintillating bolometers; Energy transfer mechanisms; SELF-TRAPPED EXCITONS; TRIPLET-STATE; DARK-MATTER; SCINTILLATORS; CAMOO4; DECAY; SEARCH; SPECTROSCOPY; TUNGSTATES; DEPENDENCE;

D O I：

10.1016/j.optmat.2012.05.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnMoO4 single crystals of high optical quality were grown using low temperature gradient Czochralski technique and their luminescence properties were studied. At low temperatures two overlapping luminescence bands with the maxima 1.93 eV and 2.45 eV were detected at E-ex > 3,9 eV. The bands are attributed to the radiative recombination of self-trapped excitons of MoO42- parentage. High-intensity nonelementary peak of thermostimulated luminescence (TSL) observed at 65 K is due to the thermal release of self-trapped holes. The threshold of TSL excitation spectrum at 6.2 eV exceeds the bandgap value by 1.9 eV and corresponds to electronic transitions from the valence band to the upper subband of the conduction band. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：1804 / 1810

页数：7

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