InfluenceofsynthetictemperatureandheatingtimeontheluminescencebehaviorofM5（PO4）3Cl:Eu2+,Mn2+（M=Ca,Sr）phosphors

被引：3

作者：

杨凤丽 ^{[1
,2
,3
]}

安炜 ^{[4
]}

李宏彦 ^{[5
]}

胡运生 ^{[1
]}

徐会兵 ^{[1
]}

叶信宇 ^{[2
]}

庄卫东 ^{[1
]}

荆西平 ^{[3
]}

机构：

[1] National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co,Ltd

[2] School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology

[3] Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials and Applications, College of Chemistry and Molecular Engineering, Peking University

[4] School of Physics, Peking University

[5] BOE Technology Group Co, Ltd

来源：

Journal of Rare Earths | 2015年 / 33卷 / 11期

关键词：

LED phosphors; Eu2+-Mn2+ co-doping; apatite; synthetic temperature; heating time; rare earths;

D O I：

暂无

中图分类号：

TN312.8 []; TQ422 [光化学物质];

学科分类号：

0803 ; 0817 ;

摘要：

To further understand the energy loss mechanism of the "charge transfer process" that was proposed in our previous work on Eu2+-Mn2+ co-doped phosphors, the influence of synthetic temperature and heating time on the photoluminescence(PL) behavior of M5(PO4)3Cl:Eu2+,Mn2+(M=Ca, Sr) phosphors was investigated by analyzing their PL spectra and decay curves. For the Ca phase, an increase in the synthetic temperature resulted in an increase in the loss from the "charge transfer process" since more Eu2+ ions were involved in the Eu2+-Mn2+ clusters. This was contrary to the thermodynamic expectation. To solve this contradiction, we proposed that the formation of Eu2+-Mn2+ clusters was kinetically blocked at lower synthetic temperatures. With an increase in heating time for the phosphors synthesized at lower temperature(such as 1100 ℃) the PL intensity decreased, which supported the above assertion.

引用

页码：1129 / 1136

页数：8

共 11 条

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