THE 1ST OBSERVATION OF I-6-]S-8 EMISSION FROM EU2+ IN KMGF3

被引：8

作者：

ELLENS, A

MEIJERINK, A

BLASSE, G

机构：

[1] Debye Institute, Utrecht University, Department of Condensed Matter, 3508 TA Utrecht

来源：

JOURNAL OF LUMINESCENCE | 1994年 / 60-1卷

关键词：

D O I：

10.1016/0022-2313(94)90096-5

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

For the first time the 6I emission of Eu2+ is reported. 6I emission of Eu2+ in KMgF3 can be observed because the energetically lowest 4f(6)5d state is situated above the I-6(7/2) state of Eu2+. This high energetic position of the lowest 4f(6)5d state of Eu2+ in KMgF3 is explained by the small crystal-field splitting and the high position of the centre of gravity of the 4f(6)5d states. The decay time of the 6I emission at 4.2 K is 96 mus. Above 25 K the 6I emission is completely quenched via the lowest 4f6 5d state, which is at some 50 cm-1 above the I-6(7/2) levels.

引用

页码：70 / 73

页数：4

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