Synthesis and photoluminescence properties of CaGd2(MoO4)4:Eu3+ red phosphors

被引：29

作者：

Park, Jin Young ^{[1
]}

Shim, Kyoo Sung ^{[2
]}

Yang, Hyun Kyoung ^{[1
]}

机构：

[1] Pukyong Natl Univ, Dept LED Convergence Engn, Busan 48513, South Korea

[2] Pukyong Natl Univ, Cooperat Lab Ctr, Busan 48513, South Korea

来源：

CERAMICS INTERNATIONAL | 2016年 / 42卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

Sol-gel processes; Lifetime; Optical properties; LUMINESCENCE PROPERTIES; OPTICAL-PROPERTIES; ENERGY-TRANSFER; EU3+; MO;

D O I：

10.1016/j.ceramint.2015.12.106

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The novel red-emitting Eu3+ ions activated CaGd2(MoO4)(4) phosphors were prepared by a citrate sol gel method. The X-ray diffraction patterns confirmed their tetragonal structure when the samples were annealed above 600 degrees C. The photoluminescence excitation spectra of CaGd2(MoO4)(4):Eu3+ phosphors exhibited the charge transfer band (CTB) and intense f-f transitions of Eu3+ ion. The optimized annealing temperature and Eu3+ ion concentration were analyzed for CaGd2(MoO4)(4):Eu3+ phosphors based on the dominant red (D-5(0) -> F-7(2)) emission intensity under NUV (394 nm) excitation. All decay curves were well fitted by the single exponential function. These luminescent powders are expected to find potential applications such as WLEDs and optical display systems. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

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页码：5737 / 5742

页数：6

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