Nonradiative energy transfer from Mn2+ to Eu3+ in K2CaP2O7:Mn2+,Eu3+ phosphor

被引：25

作者：

Song, Enhai ^{[1
]}

Zhao, Weiren ^{[1
]}

Dou, Xihua ^{[1
]}

Zhu, Yanjuan ^{[1
]}

Yi, Shuangping ^{[1
]}

Min, Huachu ^{[2
]}

机构：

[1] Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou 510006, Guangdong, Peoples R China

[2] Dongguan XGY Elect Co Ltd, Dongguan 523500, Guangdong, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2012年 / 132卷 / 06期

关键词：

Mn2+; Eu3+; Energy transfer; Luminescence properties; EMISSION-TUNABLE PHOSPHOR; OPTICAL-PROPERTIES; LUMINESCENCE; FLUORESCENCE; MANGANESE(II); SPECTRUM; CRYSTAL; ND3+; CE3+; LEDS;

D O I：

10.1016/j.jlumin.2012.01.004

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A series of color tunable phosphors K2Ca1-x-yP2O7:xMn(2+), yEu(3+) are synthesized by solid state reaction method. The energy transfer phenomenon from Mn2+ to Eu3+ has been observed in the Mn2+/Eu3+ codoped non-magnetic K2CaP2O7 host, which was confirmed by PL spectra and decay curves. The Mn2+-> Eu3+ energy transfer is controlled by quadrupole-quadrupole interaction between sensitizer and activator. The maximum efficiency of energy transfer is estimated to be 33% with x=0.125 and y=0.03 in K2Ca1-x-yP2O7:xMn(2+), yEu(3+) phosphor. The phosphors can emit light from green to yellow and eventually to orange under 400 nm excitation by changing the Mn2+/Eu3+ content ratio, indicating that K2CaP2O7: Mn2+, Eu3+ would be potential candidates for use in lighting and displays applications. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1462 / 1467

页数：6

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