| CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES |
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Effect of H3BO3 on the phase stability and long persistence properties of Sr3.96Al14O25:Eu0.012+, Dy0.023+ phosphor |
| Xie Wei (谢伟)a b c, Wang Yin-Hai (王银海)c, Zou Chang-Wei (邹长伟)a, Liang Feng (梁枫)a, Quan Jun (全军)a, Zhang Jun (张军)a, Shao Le-Xi (邵乐喜)a |
a Development Center for New Materials Engineering & Technology in Universities of Guangdong, Zhanjiang Normal University, Zhanjiang 524048, China;
b School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China;
c School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China |
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Abstract Sr3.96Al14O25:Eu2+,Dy3+ long persistent materials with different weight of H3BO3 prepared by the high temperature solid-state reaction method were characterized by X-ray powder diffraction (XRD), scanning electronic microscope (SEM), photoluminescence spectra (PL), and thermoluminescence (TL). The results of XRD indicate that the 3% addition of H3BO3 is in favor of the formation of pure phase Sr4Al14O25, and SrAl12O19 was generated when H3BO3 is in low content or high content. The average grain sizes of samples grow bigger during the increasing of H3BO3. PL spectra show that the emission peak does not shift evidently and the emission intensity changes a little, indicate that the different amount of H3BO3 have a little inference to the crystal field. The decay characteristics and TL measurement show that H3BO3 affect the afterglow properties of Sr3.96Al14O25:Eu2+,Dy3+, because the increasing of H3BO3 lead to more defects in Sr4Al14O25 matrix.
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Received: 23 June 2012
Revised: 07 December 2012
Accepted manuscript online:
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PACS:
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61.05.cp
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(X-ray diffraction)
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78.20.-e
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(Optical properties of bulk materials and thin films)
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33.50.Dq
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(Fluorescence and phosphorescence spectra)
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66.30.Ma
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(Diffusion in quantum solids (supersolidity))
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 21271048, 11147152, and 61106124) and the Natural Science Fund of Zhanjiang Normal University of China (Grant No. QL1020). |
Corresponding Authors:
Wang Yin-Hai
E-mail: carlxw@163.com
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Cite this article:
Xie Wei (谢伟), Wang Yin-Hai (王银海), Zou Chang-Wei (邹长伟), Liang Feng (梁枫), Quan Jun (全军), Zhang Jun (张军), Shao Le-Xi (邵乐喜) Effect of H3BO3 on the phase stability and long persistence properties of Sr3.96Al14O25:Eu0.012+, Dy0.023+ phosphor 2013 Chin. Phys. B 22 056101
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