Synthesis and luminescence properties of Mg-Ti-O:Eu red-emitting phosphors

被引：23

作者：

Kominami, Hiroko ^{[1
]}

Tanaka, Masaya ^{[1
]}

Hara, Kazuhiko ^{[1
]}

Nakanishi, Yoichiro ^{[1
]}

Hatanaka, Yoshinori ^{[2
]}

机构：

[1] Shizuoka Univ, Res Inst Electron, 3-5-1 Johoku, Hamamatsu, Shizuoka 4328011, Japan

[2] Aichi Univ Techniol, Elect & Informat Engn Dept, Gamagori 4430047, Japan

来源：

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 8 | 2006年 / 3卷 / 08期

关键词：

D O I：

10.1002/pssc.200669655

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Red emitting phosphor excited by blue-near ultra violet light emitting diode is being expected for new application of lightings. In our previous work, it was obtained that anataze- and rutile-type TiO2:Eu, and metal-Ti-O:Eu showed red emission of Eu3+ f-f transition. Mg-Ti-O:Eu showed strong emission peaked at 615 nm excited by 380 nm of Xe lamp, however there are some different structures based on Mg-Ti-O. In this study, Mg-Ti-O:Eu powders were synthesized by sol-gel method and compared the characteristics with each materials. From the result, MgTiO3:Eu showed red emission on photo- and cathodoluminescence. Mg2TiO4:Eu showed deep red emission peaked at 658 nm under excited by 325 nm, and violet-blue emission peaked at 415 nm excited by electron beam. MgTi2O5:Eu showed red and blue-violet emission on photo- and cathodoluminescence, respectively. It indicates that main transition level of Eu3+ was changed by crystal field of the host material even if the composition elements are same. (c) 2004 WELEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2758 / +

页数：2

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