Enhanced orange–red emission of SrZn2(PO4)2:Sm3+ via codoping Eu2+ as a sensitizer |
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| Authors: | Zhijun Wang Shuqin Lou Panlai Li |
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| Affiliation: | 1. School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China;2. College of Physics Science & Technology, Hebei University, Baoding, China |
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| Abstract: | A series of Eu2+‐, Sm3+‐ and Eu2+/Sm3+‐doped SrZn2(PO4)2 samples were synthesized using a solid‐state reaction. SrZn2(PO4)2:Eu2+ presented a broad emission band due to 4f65d–4f7 transition of the Eu2+ ion. The spectra of SrZn2(PO4)2:Sm sintered in air and H2/N2 were identical in every aspect, except for a very small difference in intensity. A Eu2+–Sm3+ energy transfer scheme was proposed to realize the sensitization of Sm3+ ion emission by Eu2+ ions, and UV‐convertible Sm3+‐activated red phosphor was obtained in SrZn2(PO4)2:Eu2+, Sm3+. Copyright © 2015 John Wiley & Sons, Ltd. |
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| Keywords: | luminescence phosphors |
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