COMPARISON OF THE SPECTRA AND DYNAMICS OF ER-3+-Y2-0SC0O3, ER-3+-Y2-1SC1O3, ER-3+-Y2-2SC2O3

被引：21

作者：

TISSUE, BM ^{[1
]}

COCKROFT, NJ ^{[1
]}

LU, LZ ^{[1
]}

NGUYEN, DC ^{[1
]}

YEN, WM ^{[1
]}

机构：

[1] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545

来源：

JOURNAL OF LUMINESCENCE | 1991年 / 48-9卷

关键词：

D O I：

10.1016/0022-2313(91)90173-S

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have studied the spectra and lifetimes of Er3+ in the isostructural series, Y2O3, YScO3, and Sc2O3. Addition of Sc3+ to Er3+:Y2O3 shifted the energy level positions, changed the inhomogeneous broadening and shortened the fluorescence lifetimes for Er3+ in the C2 site. Going from Er3+:Y2O3 to Er3+:Sc2O3 increased the barycenter of the four lowest J-multiplets, decreased the barycenter of the 4F9/2 and higher multiplets, and increased the crystal-field splitting within each J-multiplet. The inhomogeneous line widths in the Er3+:YScO3 spectra were much larger than in Er3+:Y2O3 or Er3+:Sc2O3 due to random substitutional disorder in the mixed system. The random disorder in Er3+:YScO3 removed the inversion symmetry of the C3i lattice site and allowed observation of transitions from Er3+ ions in this site. All fluorescence lifetimes decreased with addition of Sc3+ indicating an increase in the nonradiative relaxation.

引用

页码：477 / 480

页数：4

共 13 条

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