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Improving luminescent property of SrIn2O4:Eu3+ by codoped A+ (A = Li, Na, K) or Sm3+ |
Wang Zhi-Jun (王志军), Li Pan-Lai (李盼来), Yang Zhi-Ping (杨志平), Guo Qing-Lin (郭庆林) |
College of Physics Science & Technology, Hebei University, Baoding 071002, China |
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Abstract A series of SrIn2O4:Eu3+ phosphors are synthesized by a high temperature solid-state method, and their luminescent properties are investigated. They can be excited by 395-nm radiation, and produce red emission (619 nm); however, they have a low absorption of near-ultraviolet light with the wavelength of 400 nm-405 nm. When co-doped with A+ (A=Li, Na, K), the emission intensity of SrIn2O4:Eu3+ is significantly enhanced, but its emission and excitation spectral profile is unchanged. With codoping Sm3+, not only is the emission intensity of SrIn2O4:Eu3+ enhanced, but also the absorption is broadened and strengthened in the range of 400 nm-405 nm. The effect of Sm3+-doped content on the emission intensity of SrIn2O4:Eu3+, Sm3+ is investigated, and the optimal Sm3+ content is 0.02 mol.
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Received: 24 July 2012
Revised: 21 September 2012
Accepted manuscript online:
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PACS:
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78.55.-m
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(Photoluminescence, properties and materials)
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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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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 50902042), the Natural Science Foundation of Hebei Province, China (Grant Nos. E2009000209 and E2010000283), the Education Bureau Foundation of Hebei Province, China (Grant No. 2009313), and the Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, China (Grant No. 2010LOI12). |
Corresponding Authors:
Wang Zhi-Jun, Li Pan-Lai
E-mail: wangzhijunmail@yahoo.com.cn; lipanlai_780616@yahoo.com.cn
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Cite this article:
Wang Zhi-Jun (王志军), Li Pan-Lai (李盼来), Yang Zhi-Ping (杨志平), Guo Qing-Lin (郭庆林) Improving luminescent property of SrIn2O4:Eu3+ by codoped A+ (A = Li, Na, K) or Sm3+ 2013 Chin. Phys. B 22 047804
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