SPECTROSCOPIC PROPERTIES OF EU-3+ IN LANTHANUM CHLOROTUNGSTATES

被引：15

作者：

CASCALES, C ^{[1
]}

ANTICFIDANCEV, E ^{[1
]}

LEMAITREBLAISE, M ^{[1
]}

PORCHER, P ^{[1
]}

机构：

[1] CSIC,INST CIENCIA MAT D,E-28006 MADRID,SPAIN

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1990年 / 89卷 / 01期

关键词：

D O I：

10.1016/0022-4596(90)90300-M

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The spectroscopic properties of Eu3+ doped into two lanthanum chlorotungstates matrices, namely LaWO4Cl (1-1) and La3WO6Cl3(3-1), are investigated. The fluorescence spectra of these compounds, recorded at room and liquid nitrogen temperatures, show that the lanthanide ion occupies only one site with the low symmetry, Cs, in both cases. From the energy level schemes of the 7FJ levels (J = 0, 1, 2, 3, 4, 5), two sets of crystal field parameters (cfp) are deduced, in a C2v approximated point symmetry (i.e., 9 cfp), simulating the experimental data, correctly. Furthermore, for the 3-1 compound, the data is complete enough to extend the calculations to the real point group, Cs (14 cfp). © 1990.

引用

页码：118 / 122

页数：5

共 14 条

[1] LUMINESCENCE PROPERTIES OF URANIUM-ACTIVATED LANTHANUM HALOTUNGSTATE (LA3WO6CL3-U) [J].