Level location and spectroscopy of Ce3+, Pr3+, Er3+, and Eu2+ in LaBr3

被引：89
|
作者：
Dorenbos, P
van Loef, EVD
Vink, AP
van der Kolk, E
van Eijk, CWE
Krämer, KW
Güdel, HU
Higgins, WM
Shah, KS
机构：
[1] Delft Univ Technol, Fac Sci Appl, NL-2629 JB Delft, Netherlands
[2] Radiat Monitoring Devices, Watertown, MA 02472 USA
[3] Univ Bern, Dept Chem & Biochem, CH-3000 Bern 9, Switzerland
来源：
JOURNAL OF LUMINESCENCE | 2006年 / 117卷 / 02期
关键词：
lanthanides; 5d-4f transitions; change transfer; level location; Ce3+; Pr3+; Er3+; Eu2+;
D O I：
10.1016/j.jlumin.2005.04.016
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The spectroscopic properties of LaBr3 doped with Ce3+, Pr3+, Er3+, and Eu2+ under ultraviolet excitation are reported. LaBr3 host excitation and emission, 4f-5d excitation and emission of Ce3+ and Eu2+ and charge transfer from the valence band to Pr3+ and Er3+ are observed. This experimental information is combined with an empirical model to estimate the position of the lowest 4f and lowest 5d state relative to the conduction band and valence band for each divalent lanthanide ion in LaBr3. Existing literature data is used to determine the location of the lowest 4f and lowest 5d state for each trivalent lanthanide. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：147 / 155
页数：9
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