Compositional dependence of optical properties of Sm3+-doped Y3ScxAl5-xO12 polycrystalline ceramics

被引：13

作者：

Gheorghe, C. ^{[1
]}

Lupei, A. ^{[1
]}

Hau, S. ^{[1
,2
]}

Voicu, F. ^{[1
,2
]}

Gheorghe, L. ^{[1
]}

Vlaicu, A. M. ^{[3
]}

机构：

[1] Natl Inst Laser Plasma & Radiat Phys, Magurele 077125, Romania

[2] Univ Bucharest, Doctoral Sch Phys, Bucharest, Romania

[3] Natl Inst Mat Phys, 105 Bis Atomistilor St, Magurele 077125, Romania

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 683卷

关键词：

Sm3+ ion; Y3ScxAl5-xO12 translucent polycrystalline ceramics; Disordered materials; Visible emission; LASER; GARNET; ENERGY; YAG; ND; FLUORESCENCE; TRANSITIONS; ABSORPTION; Y3AL5O12;

D O I：

10.1016/j.jallcom.2016.05.112

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：

Disordered Sm3+ doped Y3ScxAl5-xO12 (Sm:YS(x)AG) polycrystalline ceramics with compositional parameter x = (0.05, 0.5, 1, 2) and different Sm3+ ions concentrations were obtained by solid state reaction method. XRD investigations show the linear increase of the lattice constant with compositional parameters x. New spectroscopic data obtained from high resolution optical absorption and emission spectra of Sm3+ doped YS(x)AG ceramics reveal composition effects on Sm3+ optical spectra: modification of the shapes and shifts of the lines, presence of the additional satellites and unresolved multicenter structure, etc. The analysis of these data allowed us to establish a partial structure of Sm3+ energy levels in Sm:YS(x)AG (x = 2) ceramics. The emission kinetics of the (4)G(5/2) level for different Sm3+ concentrations and Sc content in Sm:YS(x)AG were measured and analyzed. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：547 / 553

页数：7

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