Efficient Red Emission of Blue-Light Excitable New Structure Type NaMgPO4:Eu2+ Phosphor

被引：41
作者：
Kim, Sun Woog [1 ]
Hasegawa, Takuya [1 ]
Ishigaki, Tadashi [1 ]
Uematsu, Kazuyoshi [2 ]
Toda, Kenji [1 ]
Sato, Mineo [2 ]
机构：
[1] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan
[2] Niigata Univ, Dept Chem & Chem Engn, Niigata 9502181, Japan
来源：
ECS SOLID STATE LETTERS | 2013年 / 2卷 / 12期
关键词：
EMITTING-DIODES; LUMINESCENCE PROPERTIES; WHITE LEDS; OPTIMIZATION; CHEMISTRY; BEHAVIOR; TB3+; EU3+;
D O I：
10.1149/2.004312ssl
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel red-emitting olivine-type NaMgPO4:Eu2+ phosphor was synthesized for the first time by the melt synthesis technique using arc-imaging furnace. The NaMgPO4:Eu2+ phosphor can be efficiently excited by blue light irradiation and presents red emission band centered at 628 nm due to the 4f(6)5d(1) -> 4f(7) transition of Eu2+. The highest emission peak intensity was obtained for NaMgPO4:2.5mol%Eu2+, and the internal quantum efficiency of this phosphor at the excitation wavelength of 450 nm was 81%. Furthermore, these phosphors show an excellent thermal stability on the temperature quenching effect. (C) 2013 The Electrochemical Society. All rights reserved.
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收藏
页码：R49 / R51
页数：3
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