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Photoluminescence and Energy Transfer Between Sm 3+ Ions in LaF3 Nanocrystals Prepared by Hydrothermal Method

Received: 10 October 2016     Accepted: 19 October 2016     Published: 9 November 2016
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Abstract

The aim of this research is to study photoluminescent properties and particularly energy transfer between Sm3+ ions in LaF3 nanocrystals because the energy transfer process has a significant effect on the luminescence efficiency and lifetime. Sm3+-doped LaF3 nanocrystals with 0.1, 0.2, 0.3, 1.0, 2.0, 3.0, 4.0 and 5.0 mol% Sm3+ have been prepared by hydrothermal method. The obtained nanocrystals were characterized by X-ray diffraction, transmission electron microscopy, photoluminescence and luminescence decay measurement. The results showed that the LaF3:Sm3+ nanocrystals possess hexagonal structure with space group. The room temperature photoluminescence and photoluminescence excitation spectra of LaF3:Sm3+ were investigated in detail and interpreted by optical intra-configurational f–f transitions within Sm3+ ions. When Sm3+ ion concentration in the nanocrystals is increased, the excitation energy is transferred from the “bulk” Sm3+ ions to the surface Sm3+ ions followed by non-radiative recombination at centers at the surface of the nanocrystals. The photoluminescence decay curves of 593 nm peak in the LaF3 nanocrystals doped with 1.0-5.0 mol% Sm3+ were best fitted to the Inokuti-Hirayama model with the dominant dipole-quadrupole interaction (S = 8). The values of fitting parameters for the energy transfer process were determined.

Published in International Journal of Materials Science and Applications (Volume 5, Issue 6)
DOI 10.11648/j.ijmsa.20160506.18
Page(s) 284-289
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

LaF3:Sm3+ Nanocrystals, Hydrothermal Method, Photoluminescence, Luminescence Decay, Energy Transfer

References
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  • APA Style

    Hoang Manh Ha, Tran Thi Quynh Hoa, Le Van Vu, Nguyen Ngoc Long. (2016). Photoluminescence and Energy Transfer Between Sm 3+ Ions in LaF3 Nanocrystals Prepared by Hydrothermal Method. International Journal of Materials Science and Applications, 5(6), 284-289. https://doi.org/10.11648/j.ijmsa.20160506.18

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    ACS Style

    Hoang Manh Ha; Tran Thi Quynh Hoa; Le Van Vu; Nguyen Ngoc Long. Photoluminescence and Energy Transfer Between Sm 3+ Ions in LaF3 Nanocrystals Prepared by Hydrothermal Method. Int. J. Mater. Sci. Appl. 2016, 5(6), 284-289. doi: 10.11648/j.ijmsa.20160506.18

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    AMA Style

    Hoang Manh Ha, Tran Thi Quynh Hoa, Le Van Vu, Nguyen Ngoc Long. Photoluminescence and Energy Transfer Between Sm 3+ Ions in LaF3 Nanocrystals Prepared by Hydrothermal Method. Int J Mater Sci Appl. 2016;5(6):284-289. doi: 10.11648/j.ijmsa.20160506.18

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  • @article{10.11648/j.ijmsa.20160506.18,
      author = {Hoang Manh Ha and Tran Thi Quynh Hoa and Le Van Vu and Nguyen Ngoc Long},
      title = {Photoluminescence and Energy Transfer Between Sm 3+ Ions in LaF3 Nanocrystals Prepared by Hydrothermal Method},
      journal = {International Journal of Materials Science and Applications},
      volume = {5},
      number = {6},
      pages = {284-289},
      doi = {10.11648/j.ijmsa.20160506.18},
      url = {https://doi.org/10.11648/j.ijmsa.20160506.18},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20160506.18},
      abstract = {The aim of this research is to study photoluminescent properties and particularly energy transfer between Sm3+ ions in LaF3 nanocrystals because the energy transfer process has a significant effect on the luminescence efficiency and lifetime. Sm3+-doped LaF3 nanocrystals with 0.1, 0.2, 0.3, 1.0, 2.0, 3.0, 4.0 and 5.0 mol% Sm3+ have been prepared by hydrothermal method. The obtained nanocrystals were characterized by X-ray diffraction, transmission electron microscopy, photoluminescence and luminescence decay measurement. The results showed that the LaF3:Sm3+ nanocrystals possess hexagonal structure with  space group. The room temperature photoluminescence and photoluminescence excitation spectra of LaF3:Sm3+ were investigated in detail and interpreted by optical intra-configurational f–f transitions within Sm3+ ions. When Sm3+ ion concentration in the nanocrystals is increased, the excitation energy is transferred from the “bulk” Sm3+ ions to the surface Sm3+ ions followed by non-radiative recombination at centers at the surface of the nanocrystals. The photoluminescence decay curves of 593 nm peak in the LaF3 nanocrystals doped with 1.0-5.0 mol% Sm3+ were best fitted to the Inokuti-Hirayama model with the dominant dipole-quadrupole interaction (S = 8). The values of fitting parameters for the energy transfer process were determined.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - Photoluminescence and Energy Transfer Between Sm 3+ Ions in LaF3 Nanocrystals Prepared by Hydrothermal Method
    AU  - Hoang Manh Ha
    AU  - Tran Thi Quynh Hoa
    AU  - Le Van Vu
    AU  - Nguyen Ngoc Long
    Y1  - 2016/11/09
    PY  - 2016
    N1  - https://doi.org/10.11648/j.ijmsa.20160506.18
    DO  - 10.11648/j.ijmsa.20160506.18
    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  - 284
    EP  - 289
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20160506.18
    AB  - The aim of this research is to study photoluminescent properties and particularly energy transfer between Sm3+ ions in LaF3 nanocrystals because the energy transfer process has a significant effect on the luminescence efficiency and lifetime. Sm3+-doped LaF3 nanocrystals with 0.1, 0.2, 0.3, 1.0, 2.0, 3.0, 4.0 and 5.0 mol% Sm3+ have been prepared by hydrothermal method. The obtained nanocrystals were characterized by X-ray diffraction, transmission electron microscopy, photoluminescence and luminescence decay measurement. The results showed that the LaF3:Sm3+ nanocrystals possess hexagonal structure with  space group. The room temperature photoluminescence and photoluminescence excitation spectra of LaF3:Sm3+ were investigated in detail and interpreted by optical intra-configurational f–f transitions within Sm3+ ions. When Sm3+ ion concentration in the nanocrystals is increased, the excitation energy is transferred from the “bulk” Sm3+ ions to the surface Sm3+ ions followed by non-radiative recombination at centers at the surface of the nanocrystals. The photoluminescence decay curves of 593 nm peak in the LaF3 nanocrystals doped with 1.0-5.0 mol% Sm3+ were best fitted to the Inokuti-Hirayama model with the dominant dipole-quadrupole interaction (S = 8). The values of fitting parameters for the energy transfer process were determined.
    VL  - 5
    IS  - 6
    ER  - 

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Author Information
  • Center for Materials Science, Faculty of Physics, Vietnam National University, Hanoi University of Science, Hanoi, Vietnam

  • Center for Materials Science, Faculty of Physics, Vietnam National University, Hanoi University of Science, Hanoi, Vietnam

  • Center for Materials Science, Faculty of Physics, Vietnam National University, Hanoi University of Science, Hanoi, Vietnam

  • Center for Materials Science, Faculty of Physics, Vietnam National University, Hanoi University of Science, Hanoi, Vietnam

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