AnovelwhiteemittingphosphorCa2PO4Cl:Dy3+:luminescence,concentrationquenchingandthermalstability

被引：2

作者：

王志军 ^{[1
]}

李盼来 ^{[1
]}

杨志平 ^{[1
]}

郭庆林 ^{[1
]}

李旭 ^{[1
]}

滕枫 ^{[1
,2
]}

机构：

[1] College of Physics Science & Technology, Hebei Key Lab of Optic-Electronic Information and Materials, Hebei University

[2] Institute of Optoelectronics Technology, Beijing Jiaotong University

来源：

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

关键词：

luminescence; phosphors; Ca2PO4Cl:Dy3+; white light emitting diodes; 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：

A novel white emitting phosphor Ca2PO4Cl:Dy3+ was synthesized by a solid state method. The luminescence, concentration quenching and thermal stability of Ca2PO4Cl:Dy3+ were investigated. Ca2PO4Cl:Dy3+ showed three emission peaks, which were located at 483, 575 and 660 nm. Though the ratio of yellow to blue emission intensities showed a similar value, the intensities of yellow and blue peaks were influenced by Dy3+ concentration, and the concentration quenching effect was observed. The emission intensity of Ca2PO4Cl:Dy3+ as a function of temperature was explored and the emission intensity(at 150 °C) of Ca2PO4Cl:Dy3+ was 90.0% of the value at 25 °C, and activation energy was 0.18 eV. The results indicated that Ca2PO4Cl:Dy3+ might be conducive to development of white LEDs.

引用

页码：1137 / 1141

页数：5

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