Iron-related luminescence centers in ZnWO4:Fe

被引：0
|
作者：
Nagirnyi, V
Chernov, S
Grigorjeva, L
Jönsson, L
Kirm, M
Kotlov, A
Lushchik, A
Millers, D
Nefedov, VA
Pankratov, V
Zadneprovski, BI
机构：
[1] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia
[2] Latvian State Univ, Inst Solid State Phys, LV-1066 Riga, Latvia
[3] Lund Univ, Dept Phys, S-22363 Lund, Sweden
[4] Univ Hamburg, Inst Expt Phys, Hamburg, Germany
[5] All Russia Res Inst Mineral Mat Synth, Aleksandrov 601600, Vladimir Region, Russia
来源：
RADIATION EFFECTS AND DEFECTS IN SOLIDS | 2002年 / 157卷 / 6-12期
关键词：
tungstate crystals; ZnWO4 : Fe; impurity centres; luminescence;
D O I：
10.1080/10420150215748
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：
A systematic spectroscopic study of single ZnWO4 :Fe crystals with different iron concentrations has been performed under excitation by ultraviolet light, by synchrotron radiation or under photostimulation by near-infrared light. The luminescence of Fe3+-related centres has been studied. It is shown that iron centres of different types efficiently promote the formation of crystal defects at low temperatures. Electrons and holes can be trapped near Fe2+ or Fe3+ ions, which is further revealed in phosphorescence, thermostimulated or photostimulated luminescence. At room temperature the main effect of iron impurity is to reduce the light yield of a ZnWO4 scintillator.
引用
收藏
页码：1123 / 1126
页数：4
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