| 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[J].Optoelectronics Letters,2015,11(5):366-369 |
| Improved luminescent properties of SrZn2(PO4)2:Sm3+ doped with Li+, Na+ and K+ ions |
| Author Name | Affiliation | | LU Wei | Tangshan Vocational & Technical College, Tangshan 063000, China | | LIU Yu-fei | Library, Hebei University, Baoding 071002, China | | WANG Ying | College of Physics Science & Technology, Hebei University, Baoding 071002, China | | WANG Zhi-jun | College of Physics Science & Technology, Hebei University, Baoding 071002, China | | PANG Li-bin | College of Physics Science & Technology, Hebei University, Baoding 071002, China
Department of Foreign Language Teaching and Research, Hebei University, Baoding 071002, China |
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| Abstract: |
| SrZn2(PO4)2:Sm3+ phosphor was synthesized by a high temperature solid-state reaction in atmosphere. SrZn2(PO4)2:Sm3+ phosphor is efficiently excited by ultraviolet (UV) and blue light, and the emission peaks are assigned to the transitions of 4G5/2-6H5/2 (563 nm), 4G5/2-6H7/2 (597 nm and 605 nm) and 4G5/2-6H9/2 (644 nm and 653 nm). The emission intensities of SrZn2(PO4)2:Sm3+ are influenced by Sm3+ concentration, and the concentration quenching effect of SrZn2(PO4)2:Sm3+ is also observed. When doping A+ (A=Li, Na and K) ions, the emission intensity of SrZn2(PO4)2:Sm3+ can be obviously enhanced. The Commission Internationale de l''Eclairage (CIE) color coordinates of SrZn2(PO4)2:Sm3+ locate in the orange-red region. The results indicate that the phosphor has a potential application in white light emitting diodes (LEDs). |
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| This work has been supported by the National Natural Science Foundation of China (No.50902042), the Natural Science Foundation of Hebei |
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