Photoluminescent properties of (La, eu, Sm)2W3O12 red phosphor for Near-UV-LED-Based solid-state lighting

被引：19
|
作者：
Okamoto, Shinji [1 ]
Yamamoto, Hajime
机构：
[1] Tokyo Kagaku Kenkyusho Co Ltd, Yamato, Kanagawa 2420001, Japan
[2] Tokyo Univ Technol, Sch Bion, Hachioji, Tokyo 1920982, Japan
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2007年 / 10卷 / 10期
关键词：
D O I：
10.1149/1.2767003
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Luminescent properties of Sm3+-co-doped (La,Eu)(2)W3O12 under near-UV light excitation have been investigated. La0.5Eu1.5W3O12 shows efficient red emission at 616 nm and is about 1.7 times higher than Y2O2S:Eu3+ in photoluminescence (PL) peak intensity under 395 nm light excitation. Meanwhile, 0.1 mol Sm3+-co-doped La0.5Eu1.5W3O12 is over 5 times higher than Y2O2S:Eu3+ in PL peak intensity under 405 nm light excitation. These results imply that Sm3+-co-doped (La,Eu)(2)W3O12 is a candidate of red phosphors for near-UV light-emitting diodes (LEDs), though the Sm3+ co-doping causes an increase in thermal quenching of PL. (c) 2007 The Electrochemical Society.
引用
收藏
页码：J139 / J142
页数：4
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