A novel red-emitting phosphor for white light-emitting diodes

被引：20
|
作者：
Ren, Fuqiang
Chen, Donghua [1 ]
机构：
[1] S Cent Univ Nationalities, Coll Chem & Mat Sci, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Hubei, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 499卷 / 01期
关键词：
Luminescence; Solid-state reaction; UV-LEDs; Nanomaterials; LUMINESCENCE PROPERTIES; OPTICAL-PROPERTIES;
D O I：
10.1016/j.jallcom.2010.01.039
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A novel red-emitting phosphor of Eu3+-activated molybdate was prepared at 850 degrees C by a modified solid-state reaction. Photoluminescence (PL) results showed that the phosphor can be efficiently excited by UV-visible light from 350 to 550 nm, and exhibited bright red emission at 614 nm. XPS are taken to investigate the structure and compositions of this material. The crystallization and particle sizes of the phosphor have been investigated by using powder X-ray diffraction (XRD) and transmission electron microscopy (TEM). TEM images show that the grain size of the phosphor is about 30 nm which is in full agreement with the theoretical calculation data from the XRD patterns. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：53 / 56
页数：4
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