Tunable Yellowish-Green to Green (Ca1-xSrx)LaGa3S6O:Eu2+ Phosphors for Potential LED Application

被引：6

作者：

Yu, Ruijin ^{[1
]}

An, Yun ^{[2
]}

Wang, Caifeng ^{[1
]}

Wang, Huan ^{[1
]}

Wu, Yongkun ^{[1
]}

Chen, Jingtao ^{[1
]}

Wang, Zhenxing ^{[1
]}

Zhang, Jianhui ^{[2
]}

机构：

[1] NW A&F Univ, Coll Sci, Yangling 712100, Shaanxi, Peoples R China

[2] Sun Yat Sen Univ, MOE Lab Bioinorgan & Synthet Chem, State Key Lab Optoelect Mat & Technol, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2012年 / 15卷 / 01期

关键词：

LIGHT-EMITTING-DIODES; LUMINESCENCE PROPERTIES; WHITE LEDS; ENERGY-TRANSFER; UV LEDS; SRLAGA3S6O; CALAGA3S6O; CE3+; EU;

D O I：

10.1149/2.017201esl

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A series of Ca1-xSrxLaGa3S6O:0.05Eu(2+) (x = 0, 0.2, 0.4, 0.6, 0.8, and 1) phosphors were synthesized via a high-temperature solid-state reaction. These phosphors show broad excitation bands at 350-500 nm that match the available near-UV or blue-emitting GaN-based LED chip. The emission peaks of Ca1-xSrxLaGa3S6O:0.05Eu(2+) exhibit an obvious blue-shift in the range of 560-540 nm as the Sr content (x) increases. A tunable yellowish-green to green light can be controlled by simply adjusting the Sr content (x) in Ca1-xSrxLaGa3S6O:0.05Eu(2+). These characteristics indicate that the Ca1-xSrxLaGa3S6O:0.05Eu(2+) solid solution phosphors are good phosphor candidates for white LEDs. (C) 2011 The Electrochemical Society. [DOI: 10.1149/2.017201esl] All rights reserved.

引用

页码：J1 / J5

页数：5

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