Optical spectroscopy of Re3+ ions in sol-gel prepared α-Al2O3

被引：1

作者：

Feofilov, SP ^{[1
]}

Kaplyanskii, AA ^{[1
]}

Kulinkin, AB ^{[1
]}

Kutsenko, AB ^{[1
]}

Vasilevskaya, TN ^{[1
]}

Zakharchenya, RI ^{[1
]}

机构：

[1] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1999年 / 151卷 / 1-4期

关键词：

nanocrystals; sol-gel technology; rare-earth ions; fluorescence spectra;

D O I：

10.1080/10420159908245947

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The monolithic polycrystalline small-grain corundum alpha-Al2O3 doped with trivalent rare earth ions RE3+ (Eu3+, Er3+, Pr3+) was produced for the first time using the sol-gel technology. The fluorescence and absorption spectra of these materials were studied which exhibit the sets of narrow lines belonging to f-f transitions between RE3+ states. It was shown that Eu3+ and Er3+ ions form in corundum lattice the single dominating type of regular centers. The energy scheme of Stark sublevels for ground and excited states of dominating Eu3+ and Er3+ centers in corundum was determined.

引用

页码：131 / 135

页数：5

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