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Tunable emission, concentration quenching and crystallographic sites of Eu2+in Sr3Y(PO4)3

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Abstract

A series of Sr3Y(PO4)3:Eu2+samples are synthesized by the high temperature solid-state method. Sr3Y(PO4)3:Eu2+shows an asymmetrical emission band under excitation of 350 nm. The emission peaks at 426 nm and 497 nm are assigned to the nine-coordination Eu2+and six-coordination Eu2+, respectively. The effects of Eu2+ doping content on the emission intensity and color are observed, and the concentration quenching effect is also observed. For two different Eu2+luminescence centers, the quenching mechanisms are dipole-dipole interaction and quadrupole-quadrupole interaction, respectively. And the critical distance of energy transfer is calculated by concentration quenching and turns out to be about 3.67 nm. The results above show that the asymmetrical emission band of Sr3Y(PO4)3:Eu2+ comes from two different Eu2+2+ luminescence centers in the lattice.

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DOI:10.1007/s11801-014-4138-z

基金项目:This work has been supported by the National Natural Science Foundation of China (No.50902042), the Natural Science Foundation of Hebei Province of China (Nos.A2014201035 and E2014201037), and the Education Office Research Foundation of Hebei Province of China(Nos.ZD2014036 and QN2014085).

收稿日期:2014-07-18

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ZHANG Zi-cai:College of Physics Science & Technology, Hebei University, Baoding 071002, China
XU Shu-chao:College of Physics Science & Technology, Hebei University, Baoding 071002, China
LI Pan-lai:College of Physics Science & Technology, Hebei University, Baoding 071002, China
WANG Zhi-jun:College of Physics Science & Technology, Hebei University, Baoding 071002, China
SUN Jiang:College of Physics Science & Technology, Hebei University, Baoding 071002, China
YANG Zhi-ping:College of Physics Science & Technology, Hebei University, Baoding 071002, China
PANG Li-bin:College of Physics Science & Technology, Hebei University, Baoding 071002, ChinaDepartment of Foreign Language Teaching and Research, Hebei University, Baoding 071002, China

联系人作者:WANG Zhi-jun(wangzj1998@sohu.com)

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引用该论文

ZHANG Zi-cai,XU Shu-chao,LI Pan-lai,WANG Zhi-jun,SUN Jiang,YANG Zhi-ping,PANG Li-bin. Tunable emission, concentration quenching and crystallographic sites of Eu2+in Sr3Y(PO4)3[J]. 光电子快报(英文版), 2014, 10(6): 447-450

ZHANG Zi-cai,XU Shu-chao,LI Pan-lai,WANG Zhi-jun,SUN Jiang,YANG Zhi-ping,PANG Li-bin. Tunable emission, concentration quenching and crystallographic sites of Eu2+in Sr3Y(PO4)3[J]. Optoelectronics Letters, 2014, 10(6): 447-450

被引情况

【1】LU Wei,LIU Yu-fei,WANG Ying,WANG Zhi-jun,PANG Li-bin. Improved luminescent properties of SrZn2(PO4)2:Sm3+doped with Li+, Na+and K+ions. Optoelectronics Letters, 2015, 11(5): 366-369

【2】LU Wei,LIU Yu-fei,WANG Ying,WANG Zhi-jun,PANG Li-bin. Luminescent properties of blue emitting phosphor SrZn2(PO4)2:Eu2+for white LEDs. Optoelectronics Letters, 2015, 11(6): 426-429

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