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
收藏
页码：483 / 488
页数：6
相关论文
共 18 条
12