Cathodoluminescence and photoluminescence of Smn+ (n=2, 3) in oxide environments

被引：36

作者：

Mikhail, P

Hulliger, J

Ramseyer, K

机构：

[1] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland

[2] Univ Bern, Inst Geol, CH-3012 Bern, Switzerland

来源：

SOLID STATE COMMUNICATIONS | 1999年 / 112卷 / 09期

关键词：

radiation effects; valence fluctuations; luminescence;

D O I：

10.1016/S0038-1098(99)00391-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Cathodoluminescence (CL) and photoluminescence (PL) of Smn+ (n = 2, 3) in crystalline, glassy SrB4O7, and polycrystalline SrSO4, BaSO4 were traced in order to distinguish between the valence state 2+ and 3+. Whereas PL selectively excites both valence states, Sm3+ is preferentially seen by CL. Differences in measured spectra are most likely due to the effect of ionization of Sm2+ to Sm3+ by accelerated electrons and an energy transfer from the host to Sm3+. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：483 / 488

页数：6

共 18 条

[1]

DIEKE GH, 1968, SPECTRA ENERGY LEVEL, P178

[2] ROOM-TEMPERATURE PERSISTENT HOLE-BURNING OF SM2+ IN OXIDE GLASSES [J].