Energy transfer processes in PbWO4 luminescence

被引：31

作者：

Nikl, M

Strakova, P

Nitsch, K

Petricek, V

Mucka, V

Jarolimek, O

Novak, J

Fabeni, P

机构：

[1] Acad Sci Czech Republ, Inst Phys, CR-16200 Prague, Czech Republic

[2] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague 11000, Czech Republic

[3] Preciosa AS, CRYTUR, Turnov, Czech Republic

[4] CNR, IROE, I-50127 Florence, Italy

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 291卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(98)00619-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

X-ray-excited luminescence and time-resolved UV-excited photoluminescence were employed to evidence energy transfer processes between two main emission components in PbWO4 scintillating single crystals. It was found that energy transfer from the blue to green emission centres occurs via free-charge carriers above 150 K. This process causes a redistribution of the emitted energy in favour of the green emission component. At the same time, this process leads to the appearance of rather slow recombination decay components, mainly in the green emission component decay, which slow down the scintillator response of the PbWO4 single crystal. (C) 1998 Elsevier Science B.V. All rights reserved.

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页码：300 / 304

页数：5

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