Luminescence and energy transfer of Ce3+-Eu2+ in Ca9Al(PO4)7

被引：8
|
作者：
Meng X.-Y. [1 ]
Jie X. [1 ]
Zhang Y.-D. [1 ]
Wang D. [1 ]
Wang Y.-B. [1 ]
Li P.-L. [1 ]
Wang Z.-J. [1 ]
Pang L.-B. [2 ]
Gao S.-J. [2 ]
机构：
[1] College of Physics Science & Technology, Hebei University, Baoding
[2] Department of Foreign Language Teaching and Research, Hebei University, Baoding
来源：
Optoelectronics Letters | 2015年 / 11卷 / 01期
基金：
中国国家自然科学基金;
关键词：
541.1 Aluminum - 547.2 Rare Earth Metals - 549.2 Alkaline Earth Metals - 641.2 Heat Transfer;
D O I：
10.1007/s11801-015-4198-8
中图分类号：
学科分类号：
摘要：
A series of Ce3+, Eu2+ and Ce3+-Eu2+ doped Ca9Al(PO4)7 phosphors are synthesized by a high temperature solid-state method. Under 291 nm excitation, Ca9Al(PO4)7:Ce3+ has one emission band at 356 nm, which is attributed to 4f05d1→4f1 transition of Ce3+. Under 305 nm excitation, Ca9Al(PO4)7:Eu2+ presents one emission band at 445 nm, which is assigned to 4f65d1→4f7 transition of Eu2+. Energy transfer from Ce3+ to Eu2+ in Ca9Al(PO4)7 is validated and proved to be a resonant type via a quadrupole-quadrupole interaction. Critical distance (Rc) of Ce3+ to Eu2+ in Ca9Al(PO4)7 is calculated to be 1.264 nm. Moreover, the emission intensity of Ca9Al(PO4)7:Ce3+, Eu2+ can be tuned by properly adjusting the relative doping composition of Ce3+/Eu2+. © 2015, Tianjin University of Technology and Springer-Verlag Berlin Heidelberg.
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收藏
页码：45 / 48
页数：3
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