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

G. Murali; Sandeep Kaur; Young Cheol Chae; Manda Ramesh; Jongwoo Kim; Yung Doug Suh; Dong Kwon Lim; Seung Hee Lee

doi:10.1039/c7ra02188g

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

G. Murali, Sandeep Kaur, Young Cheol Chae, Manda Ramesh, Jongwoo Kim, Yung Doug Suh, Dong Kwon Lim, Seung Hee Lee

KU-KIST Graduate School of Converging Science and Technology

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

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.

Original language	English
Pages (from-to)	24255-24262
Number of pages	8
Journal	RSC Advances
Volume	7
Issue number	39
DOIs	https://doi.org/10.1039/c7ra02188g
Publication status	Published - 2017

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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

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.",

author = "G. Murali and Sandeep Kaur and Chae, {Young Cheol} and Manda Ramesh and Jongwoo Kim and Suh, {Yung Doug} and Lim, {Dong Kwon} and Lee, {Seung Hee}",

note = "Funding Information: This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1A2B3013825), KU-KIST school project. This research was also supported by Research Base Construction Fund Support Program funded by Chonbuk National University in 2017. Publisher Copyright: {\textcopyright} 2017 The Royal Society of Chemistry.",

year = "2017",

doi = "10.1039/c7ra02188g",

language = "English",

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AU - Murali, G.

AU - Kaur, Sandeep

AU - Chae, Young Cheol

AU - Ramesh, Manda

AU - Kim, Jongwoo

AU - Suh, Yung Doug

AU - Lim, Dong Kwon

AU - Lee, Seung Hee

N1 - Funding Information: This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1A2B3013825), KU-KIST school project. This research was also supported by Research Base Construction Fund Support Program funded by Chonbuk National University in 2017. Publisher Copyright: © 2017 The Royal Society of Chemistry.

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

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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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