| ATOMIC AND MOLECULAR PHYSICS |
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Sr3Bi(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** |
1College of Physics Science and Technology, Hebei University, Baoding 071002
2Continuing Education College, Hebei University, Baoding 071002
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| Cite this article: |
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GAO Shao-Jie, LI Ting, ZHANG Zi-Cai et al 2014 Chin. Phys. Lett. 31 073301 |
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Abstract A blue emitting phosphor Sr3Bi(PO4)3:Eu2+ is synthesized by a high-temperature solid state method, and its luminescent property is investigated. Sr3Bi(PO4)3:Eu2+ can create blue emission under the 332 radiation excitation, and the prominent luminescence in blue (423 nm) due to the 4f5d1→4f7 transition of the Eu2+ ion. The crystallographic sites of the Eu2+ ion in Sr3Bi(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 Sr3Bi(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.
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Published: 30 June 2014
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| PACS: |
33.50.Dq
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(Fluorescence and phosphorescence spectra)
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33.20.Kf
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(Visible spectra)
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