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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
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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页码:45 / 48
页数:3
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