LUMINESCENCE AND ENERGY-TRANSFER IN LEAD-ACTIVATED STRONTIUM HALOBORATE (SR,PB)2B5O9CL, (SR,PB)2B5O9BR

被引：26

作者：

MEIJERINK, A

JETTEN, H

BLASSE, G

机构：

[1] Univ Utrecht, Netherlands

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1988年 / 76卷 / 01期

关键词：

Boron Compounds - Crystals--Structure - Luminescence;

D O I：

10.1016/0022-4596(88)90198-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The luminescence properties of Pb2+ in Sr2B5O9 X(X=Cl,Br) are reported. The emission is situated at very short wavelength (approximately 280 nm). In these compounds the position of the energy levels of the Pb2+ ion is determined by the oxygen ions of the borate groups surrounding the Pb2+ ion. The influence of the two surrounding halide ions appears in the Stokes shift, which is the smaller for the Pb2+ luminescence in the bromoborate. In samples with Pb2+ concentrations above 1 at. percent, two other types of luminescent centers are observed. They are ascribed to Pb2+ pairs and Pb2+ ions next to a defect. Energy transfer from the Pb2+ ions to these other Pb2+ centers and its temperature dependence are discussed.

引用

页码：115 / 123

页数：9

共 16 条

[1] LUMINESCENCE OF INORGANIC SOLIDS - FROM ISOLATED CENTERS TO CONCENTRATED SYSTEMS [J].