Preparation and Luminescence Properties of Eu3+ Activated K2CaP2O7 Phosphors

被引：0

作者：

Lai H.-Z. ^{[1
]}

Zhu B. ^{[1
]}

Wang J. ^{[1
]}

Zou W.-Z. ^{[1
]}

Hou D.-J. ^{[1
]}

Li J.-Y. ^{[1
]}

机构：

[1] School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou

来源：

Hou, De-Jian (houdj@163.com) | 2018年 / Editorial Office of Chinese Optics卷 / 39期

关键词：

Eu[!sup]3+[!/sup; K[!sub]2[!/sub]CaP[!sub]2[!/sub]O[!sub]7[!/sub; Red phosphor;

D O I：

10.3788/fgxb20183902.0121

中图分类号：

学科分类号：

摘要：

A series of Eu3+ doped K2CaP2O7 phosphors were prepared by high temperature solid state reaction method. The phase structure, morphology, luminescence properties of the phosphors were investigated by XRD, SEM, luminescence spectra and luminescence decay curves. The results show that all the phosphors have monoclinic structure, the doping of Eu3+ ions does not significantly influence the structure of K2CaP2O7 host lattice. The phosphors exhibit irregular morphology with the particle size of several microns. Under 393 nm excitation, Eu3+ doped K2CaP2O7 samples emit red lights with the most intense peak at 613 nm. The optimal doping concentration of Eu3+ is 0.08 in the host, the critical energy transfer distance between Eu3+ ions is calculated to be 1.61 nm. The doping concentration has little influence on the decay time of Eu3+, the decay times of all the samples are in the 2.45-2.58 ms range. Moreover, the relative emission intensity maintains 73% of its original intensity when the temperature reaches 150℃. All the above results indicate that Eu3+ doped K2CaP2O7 may be a potential red phosphor. © 2018, Science Press. All right reserved.

引用

页码：121 / 126

页数：5

共 22 条

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