Green emitting molybdate complexes in PbWO4 -: results of an ODMR study

被引：18

作者：

Alves, H

Hofstaetter, A

Leiter, F

Meyer, BK

Romanov, NG

Novotny, R

Korzhik, MV

机构：

[1] Univ Giessen, Inst Phys 1, D-35392 Giessen, Germany

[2] AF Ioffe Phys Tech Inst, St Petersburg, Russia

[3] Univ Giessen, Inst Phys 2, D-6300 Giessen, Germany

[4] Inst Nucl Problems, Minsk, BELARUS

来源：

RADIATION MEASUREMENTS | 2001年 / 33卷 / 05期

关键词：

lead tungstate; green luminescence; ODMR;

D O I：

10.1016/S1350-4487(01)00075-0

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：

The nature of the green emission of PbWO4 is still under discussion, models ranging from WO3 groups over lead deficient phases to local distortions towards a wolframite structure. In CaWO4 and PbMoO4 optically detected magnetic resonance proved, using resolved Mo hyperfine structure, that tetrahedral MoO4 complexes give rise to a green luminescence. Based on this, we have performed such experiments on a series of PWO samples from various sources and with different dopants. In all cases, we find resonances typical for MoO4 groups, however, with strongly varying intensity depending on the Mo content of the crystals. These ODMR signals are connected with a luminescence band with a half width of 0.43 eV peaking at 508 nm. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：641 / 644

页数：4