Photoluminescence properties of CdSrP2O7:Eu2+ blue phosphor for white LED applications

被引：6
作者：
Derbel, Mouna [1 ]
Mbarek, Aicha [1 ]
Fourati, Mohieddine [1 ]
机构：
[1] Univ Sfax, Natl Sch Engn Sfax, Lab Ind Chem, BPW 3038, Sfax, Tunisia
来源：
OPTIK | 2016年 / 127卷 / 15期
关键词：
Phosphor; Photoluminescence; Eu2+; Light-emitting diodes; LUMINESCENCE PROPERTIES; VACUUM-ULTRAVIOLET; GREEN; SR; BA; CA;
D O I：
10.1016/j.ijleo.2016.04.020
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Eu2+-activated CdSrP2O7 phosphor was synthesized by conventional solid-state reaction. The photoluminescence properties of this phosphor were investigated by excitation and emission spectra UV-VW region. It was found that the synthesized phosphor emitted broad blue emission band centered at 418 nm, with both 274 and 131 nm excitations. The temperature-dependence luminescence characteristic of CdSr0.99P2O7:0.01Eu(2+) phosphor was reported, with the increase of temperature, the emission band exhibited blue shift and decreasing emission intensities. The phosphor CdSr0.99P2O7:0.01Eu(2+) possesses good thermal stability. The activated energy was deduced to be 0.227 eV. These results indicated that CdSrP2O7:Eu2+ phosphor could be a good candidate for near-UV based white light emitting diodes (WLEDs). (C) 2016 Elsevier GmbH. All rights reserved.
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收藏
页码：5870 / 5875
页数：6
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