Sr3 Bi(PO4 )3 :Eu2+ Luminescence, Concentration Quenching and Crystallographic Sites
GAO Shao-Jie1,2 , LI Ting1 , ZHANG Zi-Cai1 , LI Pan-Lai1 , WANG Zhi-Jun1** , YANG Zhi-Ping1**
1 College of Physics Science and Technology, Hebei University, Baoding 0710022 Continuing Education College, Hebei University, Baoding 071002
Abstract ：A blue emitting phosphor Sr3 Bi(PO4 )3 :Eu2+ is synthesized by a high-temperature solid state method, and its luminescent property is investigated. Sr3 Bi(PO4 )3 :Eu2+ can create blue emission under the 332 radiation excitation, and the prominent luminescence in blue (423 nm) due to the 4f 5d 1 →4f 7 transition of the Eu2+ ion. The crystallographic sites of the Eu2+ ion in Sr3 Bi(PO4 )3 are analyzed, and the 420 and 440 nm emission peaks of the Eu2+ ion are assigned to the nine-coordination and eight-coordination, respectively. The emission intensity of Sr3 Bi(PO4 )3 :Eu2+ is influenced by the Eu2+ doping content, and the concentration quenching effect is observed. The quenching mechanism is the dipole-dipole interaction, and the critical distance of energy transfer is calculated by the concentration quenching method to be approximately 1.72 nm.
出版日期: 2014-06-30
:
33.50.Dq
(Fluorescence and phosphorescence spectra)
33.20.Kf
(Visible spectra)
引用本文:
. [J]. 中国物理快报, 2014, 31(07): 73301-073301.
3 Bi(PO4 )3 :Eu2+ Luminescence, Concentration Quenching and Crystallographic Sites. Chin. Phys. Lett., 2014, 31(07): 73301-073301.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/31/7/073301
或
https://cpl.iphy.ac.cn/CN/Y2014/V31/I07/73301
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2014, Vol. 31 
