Host anion effect on the energy level scheme of Sm3+ in SmOX (X=F, Cl and Br)

被引：3

作者：

Holsa, J

Korventausta, J

Lamminmaki, RJ

Sailynoja, E

Porcher, P

机构：

[1] UNIV TURKU,DEPT CHEM,FIN-20014 TURKU,FINLAND

[2] CNRS,UPR 209,F-92195 MEUDON,FRANCE

来源：

JOURNAL OF LUMINESCENCE | 1997年 / 72-4卷

基金：

芬兰科学院;

关键词：

energy level simulation; samarium oxyhalides;

D O I：

10.1016/S0022-2313(96)00252-9

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The energy level schemes obtained from the optical absorption and luminescence data for the Sm3+ doped oxyhalides (SmOX, X = F, Cl and Br) were simulated with a phenomenological model accounting simultaneously for the free ion interactions and the crystal field (c.f.) effect. The values of the Slater integrals (F-k) describing the electrostatic interactions increase as a function of the ionic radius of the anion from SmOF to SmOBr. The value of the host independent c.f. strength parameter S for the hexagonal SmOF matrix (580 cm(-1)) is more than 50% higher than for the tetragonal SmOCl or SmOBr. This indicates the importance of the ionic contribution to the c.f. effect.

引用

页码：204 / 207

页数：4