Luminescence characteristics of single-phase white-emitting phosphor Sr2CeO4:Eu3+

被引:0
作者
Tian Xu
Qi Zhang
Xiaojuan Yang
Quan Liu
Lixi Wang
Le Zhang
Qitu Zhang
机构
[1] Nanjing Tech University,College of Materials Science and Engineering
[2] AVIC Aerospace Life-support Industries,Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering
[3] Ltd,undefined
[4] Jiangsu Normal University,undefined
来源
Journal of Materials Science: Materials in Electronics | 2017年 / 28卷
关键词
CeO2; Eu2O3; Charge Transfer Band; Correlate Color Temperature; Ca2P2O7;
D O I
暂无
中图分类号
学科分类号
摘要
A series of (Sr1 − xEux)2CeO4 (x = 0, 0.001, 0.003, 0.005, 0.007, 0.009, 0.01, 0.013 and 0.015) single- phase phosphors have been successfully prepared by solid-state reaction method. X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL), diffuse reflection, fluorescence decay curves, CIE color coordinates and Correlated Color Temperature (CCT) were used to characterize the prepared phosphors. With the increasing amount of Eu3+, the intensity of the wide blue emission band centered at 475 nm decreased gradually, and the intensity of the sharp peaks of Eu3+ at 615 nm (5D0–7F2) and 585 nm (5D0–7F1) increased gradually at the same time. The influence of Eu3+ concentrations on the properties of the phosphor was discussed. The optimized composition was determined to be (Sr0.99Eu0.01)2CeO4. In addition, the band gap and decay curves of the phosphors were investigated to explore the relationship between the intensity and the content of Eu3+. The enhanced luminescence intensity and good white chromaticity coordinate value of the phosphor are conducive to improve application in the field of white light-emitting diodes (W-LEDs).
引用
收藏
页码:10131 / 10138
页数:7
相关论文
共 117 条
[1]  
Li K(2014)undefined Inorg. Chem 54 323-undefined
[2]  
Liu X(2015)undefined J. Am. Ceram. Soc. 98 788-undefined
[3]  
Zhang Y(2016)undefined RSC Adv. 6 32381-undefined
[4]  
Min X(2014)undefined J. Mater. Sci. Mater. Electron. 25 2359-undefined
[5]  
Fang M(2011)undefined J. Phys. Chem. Lett. 2 1268-undefined
[6]  
Huang Z(2009)undefined Chem. Mater 21 2077-undefined
[7]  
Tian L(2007)undefined Appl. Phys. Lett. 91 091923-undefined
[8]  
Shen J(2007)undefined Appl. Phys. Lett. 90 261113-undefined
[9]  
Xu T(2011)undefined J. Phys. Chem. C 115 2349-undefined
[10]  
Zhang DQ(2014)undefined Phys. Chem. Chem. Phys. 16 11597-undefined