Synthesis and luminescence properties of Sm3+-doped La2WyMo2_yO9 orange-red phosphors

被引：15

作者：

Deng, Yaomin ^{[1
]}

Yi, Shuangping ^{[1
]}

Huang, Jun ^{[1
]}

Zhao, Weiren ^{[1
]}

Xian, Jieqiang ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou 510006, Guangdong, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2014年 / 433卷

关键词：

La2WyMo2_O-y(9); Sm3+; Phosphor; Orange-red emitting; White LED; LIGHT-EMITTING-DIODES; OPTICAL-PROPERTIES; ENERGY-TRANSFER; EU3+; SM3+; PHOTOLUMINESCENCE; EMISSION; IONS; MO; NA;

D O I：

10.1016/j.physb.2013.10.028

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

La2WyMo2_O-y(9) phosphors activated with the trivalent rare-earth Sm3+ were synthesized via a traditional solid-state reaction, their structure and luminescence properties were investigated by using X-ray diffractometer and fluorescence spectrophotometer. There were three emission peaks centered at 563, 599, and 646 nm corresponding to the (4)G(5/2)-> H-6(5/2), (4)G(5/2)-> H-6(7/2), (4)G(5/2)-> H-6(9/2) transitions of Sm3+ under the 402 nm ultraviolet excitation. Investigation on Sm3+ concentration-dependent emission spectra indicated that La1.97WMoO9:3% Sm3+ phosphor exhibited the strongest orange-red emission with a CIE value of (0.5425, 0.4541). Therefore, it is considered to be a new promising orange-red emitting phosphor for white light emitting diode (LED) application. (C) 2013 Elsevier By, All rights reserved.

引用

页码：133 / 137

页数：5

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