Luminescence of Ce3+ ions in strontium haloborates

被引：60

作者：

Dotsenko, VP

Berezovskaya, IV

Efryushina, NP

Voloshinovskii, AS

Dorenbos, P

van Eijk, CWE

机构：

[1] Ukrainian Acad Sci, AV Bogatsky Physicochem Inst, UA-65080 Odessa, Ukraine

[2] Lviv Franko State Univ, UA-29005 Lviv, Ukraine

[3] Delft Univ Technol, NL-2629 JB Delft, Netherlands

来源：

JOURNAL OF LUMINESCENCE | 2001年 / 93卷 / 02期

关键词：

strontium haloborates; cerium;

D O I：

10.1016/S0022-2313(01)00179-X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The luminescence properties of Ce3+ ions in strontium haloborates were studied upon excitation in the 3.5-22 eV region. In Sr2(1-x)Ce2xB5O9R (R=Cl,Br; x less than or equal to 0.01) solid solutions, two principal Ce3+ centers are observed. The dominant center was found to be produced by the direct substitution of the dopant ion for Sr2+ without a local charge compensation. The other center is ascribed to an associate of a Ce3+ ion and a cation vacancy. The charge compensation mechanism on the cation sublattice includes the formation of one vacancy per two Ce3+ ions incorporated. The influence of the structural features of Sr2B5O9R on the luminescent behavior of Ce3+ is discussed. (C) 2001 Elsevier Science B,V. All rights reserved.

引用

页码：137 / 145

页数：9

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