Spectra and energy levels of Er3+ in Er2O3 powder

被引：23
|
作者：
Dammak, M [1 ]
Zhang, DL
机构：
[1] Fac Sci Sfax, Dept Phys, Appl Phys Lab, Sfax 3018, Tunisia
[2] Tianjin Univ, Dept Optoelect & Informat Engn, Coll Precis Instruments & Optoelect Engn, Tianjin 300072, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 407卷 / 1-2期
关键词：
strength crystal field; Er2O3; powder; energy levels diagram;
D O I：
10.1016/j.jallcom.2005.06.017
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The emission and absorption spectra of Er3+ ions in Er2O3 powder are investigated at room temperature. The crystal field splitting of I-4(15/2), I-4(13/2), S-4(3/2) and S-4(3/2) multiplets of Er3+ was calculated using a parameterized Hamiltonian including crystal field terms. A final standard deviation of 5.3 cm(-1) is obtained between 22 calculated and experimental Stark. The strength crystal field parameters of Er2O3 powder are compared to those of erbium doped Y2O3 single crystal. In addition, the location of the ground and the first excited states of Er3+ in Er2O3 powder is determined. The I-4(15/2) ground state of Er3+ is located at 12750 cm(-1) below the valence band edge. The I-4(13/2) and I-4(11/2) multiplets are set in resonance with the valence band. A configuration coordinate diagram is proposed for Er3+ in Er2O3 powder. (c) 2005 Elsevier B.V. All rights reserved.
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页码：8 / 15
页数：8
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