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Hydrothermal Synthesis and Luminescence Properties of Monodisperse Spherical CaF2 and CaF2:Ln3+ (Ln = Eu, Tb, Ce/Tb) Microcrystals

Received: 8 April 2016     Published: 9 April 2016
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Abstract

Spherical CaF2 and CaF2:Ln3+ (Ln = Eu, Tb, Ce/Tb) with tunable particle size (about 2.5 µm) have been synthesized by one-step facile and effective hydrothermal method. The spherical structure was highly uniform and well-dispersed. It was found that reaction time, pH value, and reaction temperature have important effects on the controlled synthesis of spherical CaF2. The samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM), photo-luminescence (PL) and luminescence decay curve. Under UV excitation, the CaF2:Eu3+ showed the red emission (5D07FJ = 0, 1, 2, 3) and the CaF2:Tb3+ presented the green emission (5D47FJ = 6, 5, 4, 3), respectively. Furthermore, Ce3+/Tb3+ co-doped CaF2 showed efficient energy transfer from Ce3+ to Tb3+, which presented strong green photo-luminescence of Tb3+. Due to excellent luminescent properties, the obtained samples can be used in many fields, such as light display systems, optoelectronic devices and biological imaging.

Published in International Journal of Materials Science and Applications (Volume 5, Issue 2)
DOI 10.11648/j.ijmsa.20160502.14
Page(s) 54-60
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

CaF2, Hydrothermal Synthesis, Ce→Tb Energy Transfer, Spherical, Luminescence Properties

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Cite This Article
  • APA Style

    Xiaohong Yang, Jingjing Cao, Shanshan Hu. (2016). Hydrothermal Synthesis and Luminescence Properties of Monodisperse Spherical CaF2 and CaF2:Ln3+ (Ln = Eu, Tb, Ce/Tb) Microcrystals. International Journal of Materials Science and Applications, 5(2), 54-60. https://doi.org/10.11648/j.ijmsa.20160502.14

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    ACS Style

    Xiaohong Yang; Jingjing Cao; Shanshan Hu. Hydrothermal Synthesis and Luminescence Properties of Monodisperse Spherical CaF2 and CaF2:Ln3+ (Ln = Eu, Tb, Ce/Tb) Microcrystals. Int. J. Mater. Sci. Appl. 2016, 5(2), 54-60. doi: 10.11648/j.ijmsa.20160502.14

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    AMA Style

    Xiaohong Yang, Jingjing Cao, Shanshan Hu. Hydrothermal Synthesis and Luminescence Properties of Monodisperse Spherical CaF2 and CaF2:Ln3+ (Ln = Eu, Tb, Ce/Tb) Microcrystals. Int J Mater Sci Appl. 2016;5(2):54-60. doi: 10.11648/j.ijmsa.20160502.14

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  • @article{10.11648/j.ijmsa.20160502.14,
      author = {Xiaohong Yang and Jingjing Cao and Shanshan Hu},
      title = {Hydrothermal Synthesis and Luminescence Properties of Monodisperse Spherical CaF2 and CaF2:Ln3+ (Ln = Eu, Tb, Ce/Tb) Microcrystals},
      journal = {International Journal of Materials Science and Applications},
      volume = {5},
      number = {2},
      pages = {54-60},
      doi = {10.11648/j.ijmsa.20160502.14},
      url = {https://doi.org/10.11648/j.ijmsa.20160502.14},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20160502.14},
      abstract = {Spherical CaF2 and CaF2:Ln3+ (Ln = Eu, Tb, Ce/Tb) with tunable particle size (about 2.5 µm) have been synthesized by one-step facile and effective hydrothermal method. The spherical structure was highly uniform and well-dispersed. It was found that reaction time, pH value, and reaction temperature have important effects on the controlled synthesis of spherical CaF2. The samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM), photo-luminescence (PL) and luminescence decay curve. Under UV excitation, the CaF2:Eu3+ showed the red emission (5D0→7FJ = 0, 1, 2, 3) and the CaF2:Tb3+ presented the green emission (5D4→7FJ = 6, 5, 4, 3), respectively. Furthermore, Ce3+/Tb3+ co-doped CaF2 showed efficient energy transfer from Ce3+ to Tb3+, which presented strong green photo-luminescence of Tb3+. Due to excellent luminescent properties, the obtained samples can be used in many fields, such as light display systems, optoelectronic devices and biological imaging.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - Hydrothermal Synthesis and Luminescence Properties of Monodisperse Spherical CaF2 and CaF2:Ln3+ (Ln = Eu, Tb, Ce/Tb) Microcrystals
    AU  - Xiaohong Yang
    AU  - Jingjing Cao
    AU  - Shanshan Hu
    Y1  - 2016/04/09
    PY  - 2016
    N1  - https://doi.org/10.11648/j.ijmsa.20160502.14
    DO  - 10.11648/j.ijmsa.20160502.14
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 54
    EP  - 60
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20160502.14
    AB  - Spherical CaF2 and CaF2:Ln3+ (Ln = Eu, Tb, Ce/Tb) with tunable particle size (about 2.5 µm) have been synthesized by one-step facile and effective hydrothermal method. The spherical structure was highly uniform and well-dispersed. It was found that reaction time, pH value, and reaction temperature have important effects on the controlled synthesis of spherical CaF2. The samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM), photo-luminescence (PL) and luminescence decay curve. Under UV excitation, the CaF2:Eu3+ showed the red emission (5D0→7FJ = 0, 1, 2, 3) and the CaF2:Tb3+ presented the green emission (5D4→7FJ = 6, 5, 4, 3), respectively. Furthermore, Ce3+/Tb3+ co-doped CaF2 showed efficient energy transfer from Ce3+ to Tb3+, which presented strong green photo-luminescence of Tb3+. Due to excellent luminescent properties, the obtained samples can be used in many fields, such as light display systems, optoelectronic devices and biological imaging.
    VL  - 5
    IS  - 2
    ER  - 

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Author Information
  • School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China

  • School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China

  • School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China

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