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Synthesis and characterization of europium-doped Sr3Al2O6 phosphors by sol–gel technique

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Abstract

This paper reports the detailed preparation process of Eu2+ activated Sr3Al2O6 by a sol-gel method in the reducing atmosphere. The effect of the calcining temperature on the microstructure, crystalline particle morphology and luminescence properties of Sr3Al2O6:Eu2+ is systematically discussed. X-ray diffraction (XRD), thermogravimetry-differential thermal analysis (TG-DTA), scanning electron microscopy (SEM) and fluorescence spectrophotometer were employed to characterize the phosphor. The Sr3Al2O6:Eu2+ phosphor powders calcined at 1200 °C for 2 h possessed a Sr3Al2O6 single cubic phase. The Sr3Al2O6:Eu2+ crystallites showed flower-like morphology. The Sr3Al2O6:Eu2+ phosphor powders exhibited a red broad emission band with emission peak at 612 nm under 472 nm excitation. Especially the Sr3Al2O6:Eu2+ phosphor powders prepared at 1200 °C showed the strongest luminescence intensity, due to the pure phase and higher crystallinity of Sr3Al2O6.

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Acknowledgments

This work was financially supported by Program for New Century Excellent Talents in University and Tian** Science Fund (Grant No. 05YFJMJC09300).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tian** University, Tian**, 300072, China

    ** Zhang, Mingxia Xu, Zhentai Zheng & Lan Liu

  2. School of Electronic and Information Engineering, Tian** University, Tian**, 300072, China

    ** Zhang & Lingxia Li

  3. Hebei University of Technology, Tian**, 300130, China

    Zhentai Zheng

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  1. ** Zhang
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  2. Mingxia Xu
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  3. Zhentai Zheng
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  4. Lan Liu
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  5. Lingxia Li
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Correspondence to Mingxia Xu.

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Zhang, P., Xu, M., Zheng, Z. et al. Synthesis and characterization of europium-doped Sr3Al2O6 phosphors by sol–gel technique. J Sol-Gel Sci Technol 43, 59–64 (2007). https://doi.org/10.1007/s10971-007-1537-7

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  • DOI: https://doi.org/10.1007/s10971-007-1537-7

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