THE LIFETIME OF EU2+ FLUORESCENCE IN CAF2-EU2+ CRYSTALS

被引：26

作者：

TSUBOI, T ^{[1
]}

SILFSTEN, P ^{[1
]}

机构：

[1] UNIV JOENSUU,DEPT PHYS,SF-80101 JOENSUU,FINLAND

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1991年 / 3卷 / 46期

关键词：

D O I：

10.1088/0953-8984/3/46/017

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The lifetime of luminescence in CaF2:Eu2+ crystals has been investigated in a temperature range 15-320 K using a streak camera. Unlike the cases of other Eu2+-doped crystals, an emission band with a peak at 425 nm was observed to have a lifetime which decreases with decreasing temperature. Such an unusual temperature dependence of the luminescence lifetime is suggested to be explained by taking into account the non-radiative process between the lowest 4f(6)5d level and the upper excited levels of the Eu2+ ion.

引用

页码：9163 / 9167

页数：5

共 7 条

[1] STUDY OF NEW 4F7 LEVELS OF EU-2+ IN CAF2 AND SRF2 USING 2-PHOTON ABSORPTION-SPECTROSCOPY [J].