Ce3+ dopant segregation in Y3Al5O12 optical ceramics

被引：69

作者：

Zhao, W. ^{[1
,2
]}

Anghel, S. ^{[1
,3
]}

Mancini, C. ^{[1
]}

Amans, D. ^{[1
]}

Boulon, G. ^{[1
,4
]}

Epicier, T. ^{[5
]}

Shi, Y. ^{[6
]}

Feng, X. Q. ^{[6
]}

Pan, Y. B. ^{[6
]}

Chani, V. ^{[4
]}

Yoshikawa, A. ^{[4
]}

机构：

[1] Univ Lyon 1, CNRS, Phys Chim Mat Luminescents LPCML, UMR 5620, F-69622 Villeurbanne, France

[2] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

[3] Inst Appl Phys, MD-2028 Kishinev, Moldova

[4] Tohoku Univ, IMRAM, Aoba Ku, Sendai, Miyagi 9808577, Japan

[5] Univ Lyon, Inst Natl Sci Appl Lyon, CNRS, UMR 5510, F-69621 Villeurbanne, France

[6] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Inorgan Mat, Shanghai 200050, Peoples R China

来源：

OPTICAL MATERIALS | 2011年 / 33卷 / 05期

关键词：

Optical ceramics; YAG; Cerium; Segregation; Scintillators; LUMINESCENCE;

D O I：

10.1016/j.optmat.2010.10.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ce3+-doped YAG garnet optical ceramic have been sintered at the Shanghai Institute of Ceramics in China to characterize dopant distribution in optical ceramics by combining optical spectroscopy and two spatially resolved techniques as imaging confocal microscopy and transmission electron microscopy. A strong Ce3+ segregation and spatial variations of content between grains and grain boundaries has been confirmed by quantitative data obtained by TEM microscopy. This observation is another evidence of the inhomogeneous Ce3+ distribution across grain and grain boundaries in optical ceramics comparable to that of Nd3+ ions in YAG ceramics. These results correlate well with low segregation coefficients of Nd3+ and Ce3+ observed in the garnet crystals grown from the melt and/or flux. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：684 / 687

页数：4

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