The Spectroscopic Properties and Structural Occupation of Eu3+ Sites in LiMgPO4 Phosphor

被引：23

作者：

Zhang, Suyin ^{[1
]}

Huang, Yanlin ^{[1
]}

Seo, Hyo Jin ^{[2
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

[2] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2010年 / 157卷 / 05期

关键词：

EFFECTIVE IONIC-RADII; RARE-EARTH IONS; LUMINESCENCE PROPERTIES; OXYGEN ENVIRONMENT; CRYSTAL-STRUCTURE; LN; MECHANISM;

D O I：

10.1149/1.3356975

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Eu3+-doped LiMgPO4 was prepared by a high temperature solid-state reaction. The phase formation was confirmed by X-ray powder diffraction measurements. The site-selective excitation and emission spectra were investigated in the D-5(0)-> F-7(0) region by using a pulsed, tunable, and narrowband dye laser. Two crystallographic sites for Eu3+ ions doped in LiMgPO4 were observed from the luminescence and structure features. Absorption and emission peaks at 579.0 nm were caused by the Eu3+ site, which substitutes the Li+ ion located in the channel of the LiMgPO4 structure along the [010] direction, creating cation vacancies V-Li', while absorption and emission peaks at 579.9 nm were caused by a cluster of Eu3+ ions. The decay times of the two Eu3+ sites were measured. The defect structures and charge compensation mechanism of Eu3+ doping in LiMgPO4 were discussed. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3356975] All rights reserved.

引用

页码：J186 / J190

页数：5

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