Theoretical investigation of the luminescence centres in PbWO4 and CdWO4 crystals

被引：19

作者：

Hizhnyi, YA ^{[1
]}

Nedilko, SG ^{[1
]}

Nikolaenko, TN ^{[1
]}

机构：

[1] Taras Shevchenko Kyiv Univ, Fac Phys, UA-03680 Kiev, Ukraine

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2005年 / 537卷 / 1-2期

关键词：

electronic structure; luminescence; tungstate crystals;

D O I：

10.1016/j.nima.2004.07.227

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Electronic structures of possible centres of luminescence in the perfect lead (PbWO4) and cadmium tungstate (CdWO4) crystals are calculated using cluster approach. Electronic states of Pb2+, and Cd2+ cations WO42- and WO66- are obtained on the basis of partial densities of electronic states calculated for several clusters containing from 72 to 104 atoms of the crystals. Calculated energies of one-electron transitions in these centers are compared with experimental data on luminescence and luminescence excitation. Obtained results evidence in favor of a tungstate nature of intrinsic luminescence in the PbWO4 and CdWO4 Crystals. I ntrinsic luminescence probably originates from the tungstate groups WO42- in scheelite-type, and from the WO66- groups in the raspite-type PbWO4 crystals. Tungstate groups WO66- are assumed to be the centres of excitation of blue-green and yellow luminescence bands in CdWO4 crystals. (C) 2004 Published by Elsevier B.V.

引用

页码：36 / 39

页数：4

共 19 条

[1] Electronic structure and optical properties of CdMoO4 and CdWO4 [J].

Abraham, Y ;

Holzwarth, NAW ;

Williams, RT .

PHYSICAL REVIEW B, 2000, 62 (03) :1733-1741

[2] Electronic structure of oxygen-related defects in PbWO4 and CaMoO4 crystals -: art. no. 245109 [J].

Abraham, YB ;

Holzwarth, NAW ;

Williams, RT ;

Matthews, GE ;

Tackett, AR .

PHYSICAL REVIEW B, 2001, 64 (24)

[3] Structured emission of tetrahedral complexes due to Jahn-Teller and pseudo-Jahn-Teller effects -: art. no. 104302 [J].

Bacci, M ;

Porcinai, S ;

Mihóková, E ;

Nikl, M ;

Polák, K .

PHYSICAL REVIEW B, 2001, 64 (10)

[4] Crystallographic and catalytic studies of a new solid solution CdMoxW1-xO4 [J].

Daturi, M ;

Borel, MM ;

Leclaire, A ;

Savary, L ;

Costentin, G ;

Lavalley, JC ;

Raveau, B .

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1996, 93 (11-12) :2043-2053

[5] RASPITE FROM BROKEN HILL [J].

FUJITA, T ;

KAWADA, I ;

KATO, K .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1977, 33 (JAN15) :162-164

[6]

GLOBUS M, 2000, INORG SCINTILLATORS

[7]

Hizhnyi YA, 2002, RADIAT EFF DEFECT S, V157, P839, DOI 10.1080/1042015022000037364

[8]

Hizhnyi Yu A., 2003, J LUMIN, V102103, P688

[9] Optical properties of scheelite and raspite PbWO4 crystals [J].

Itoh, M ;

Fujita, M .

PHYSICAL REVIEW B, 2000, 62 (19) :12825-12830

[10] Anisotropy of optical properties of scheelite tungstates in the fundamental absorption region [J].

Kamenskhikh, IA ;

Kolobanov, VN ;

Mikhailin, VV ;

Potkin, LI ;

Shpinkov, IN ;

Spassky, DA ;

Zadneprovsky, BI ;

Zimmerer, G .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 470 (1-2) :270-273

← 1 2 →