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

页码：J139 / J142

页数：4

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