EU3+-O2- associates luminescence in Ba2SiO4

被引：40

作者：

Pires, AM

Davolos, MR

Malta, OL

机构：

[1] UNESP,INST QUIM,BR-14801970 ARARAQUARA,SP,BRAZIL

[2] UNIV FED PERNAMBUCO,BR-50739901 RECIFE,PE,BRAZIL

来源：

JOURNAL OF LUMINESCENCE | 1997年 / 72-4卷

关键词：

Eu3+-O2- associates; anomalous Eu3+ 5D0->F-7(0) transition; barium orthosilicate;

D O I：

10.1016/S0022-2313(96)00357-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Results on the luminescence properties of Eu3+ in Ba2SiO4 sites and the presence of Eu3+-O2- associates are reported. The Ba2SiO4:Eu3+ emission spectra showed two groups of transitions that might be assigned to the D-5(0) --> F-7(0) one. In each group at least two lines were observed. This is possibly related to the different emission centers, attributed to Eu3+ occupying the Ba2+ sites, and to Eu3+-O2- associates in interstices. Excitation spectra presented two CT bands at 270 and 340 nm related to each emission center.

引用

页码：244 / 246

页数：3

共 10 条

[1] FLUORESCENCE OF EU2+-ACTIVATED PHASES IN BINARY ALKALINE EARTH ORTHOSILICATE SYSTEMS [J].