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Issue 39, 2017, Issue in Progress
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Monodisperse, shape-selective synthesis of YF3:Yb3+/Er3+ nano/microcrystals and strong upconversion luminescence of hollow microcrystals

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Abstract

Synthesizing upconversion materials with 3-dimensional structures is of fundamental importance in understanding the relationship between their optical properties and their structures. In this paper, we report a simple but useful synthetic method to produce highly monodisperse 3-dimensional YF3:Yb3+/Er3+ microcrystals showing variable upconversion efficiencies. By tuning the pH, precursor salt, and solvent, the shapes of the YF3:Yb3+/Er3+ crystals could be tuned from hollow hexagon to hollow dumbbell, tetragonal bipyramid, and truncated tetragonal bipyramid structures. The upconversion efficiency showed significant dependence on the structure of YF3:Yb3+/Er3+; hollow structures revealed a large enhancement in the luminescence intensity. The upconversion efficiency of the structures decreased in the order hollow hexagon > hollow dumbbell > tetragonal bipyramid > truncated tetragonal bipyramid.

Graphical abstract: Monodisperse, shape-selective synthesis of YF3:Yb3+/Er3+ nano/microcrystals and strong upconversion luminescence of hollow microcrystals

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Publication details

The article was received on 21 Feb 2017, accepted on 27 Apr 2017 and first published on 03 May 2017


Article type: Paper
DOI: 10.1039/C7RA02188G
RSC Adv., 2017,7, 24255-24262
  • Open access: Creative Commons BY-NC license
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    Monodisperse, shape-selective synthesis of YF3:Yb3+/Er3+ nano/microcrystals and strong upconversion luminescence of hollow microcrystals

    G. Murali, S. Kaur, Y. C. Chae, M. Ramesh, J. Kim, Y. D. Suh, D. Lim and S. H. Lee, RSC Adv., 2017, 7, 24255
    DOI: 10.1039/C7RA02188G

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