Synthesis, luminescence properties, and growth mechanisms of YF3:Yb3+/Er3+ nanoplates

G. Murali; Byeong Hoon Lee; R. K. Mishra; Jae Myeong Lee; Sang-Hwan Nam; Yung Doug Suh; Dong-Kwon Lim; Joong Hee Lee; Seung Hee Lee

doi:10.1039/C5TC02034D

Synthesis, luminescence properties, and growth mechanisms of YF₃:Yb³⁺/Er³⁺ nanoplates†

G. Murali,^a Byeong Hoon Lee,^a R. K. Mishra,^a Jae Myeong Lee,^a Sang-Hwan Nam,^b Yung Doug Suh,^bc Dong-Kwon Lim,*^d Joong Hee Lee^a and Seung Hee Lee*^a

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* Corresponding authors

^a Applied Materials Institute for BIN Convergence, Department of BIN Fusion Technology and Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, Jeonbuk 561-756, Korea
E-mail: lsh1@chonbuk.ac.kr
Tel: +82-63-270-2343

^b Laboratory for Advanced Molecular Probing (LAMP), Korea Research Institute of Chemical Technology, Daejeon 305-600, South Korea

^c School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, South Korea

^d KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, Korea
E-mail: dklim@korea.ac.kr

Abstract

Anisotropically structured upconversion nanocrystals capable of exhibiting bright upconversion emission properties are a promising new class of high performance optical materials. In this study, we investigate a facile synthetic method for the new nanoplate structure of YF₃:Yb³⁺/Er³⁺ with enhanced luminescence intensity. The shape of YF₃:Yb³⁺/Er³⁺ nanocrystals can be controlled by changing the synthesis conditions of the NaOH concentration, reaction time, and surfactant. The concentration of NaOH determines the final structure of YF₃:Yb³⁺/Er³⁺. By increasing the NaOH concentration from 0.25 mmol to 2.5 mmol, YF₃:Yb³⁺/Er³⁺ nanoplates transform into NaYF₄:Yb³⁺/Er³⁺ nanoparticles; in the absence of NaOH, the nanoplate structure of YF₃:Yb³⁺/Er³⁺ changes to particles. The YF₃:Yb³⁺/Er³⁺ nanoplates show luminescence efficiency much greater than that of the spherical YF₃:Yb³⁺/Er³⁺ nanocrystals.

This article is part of the themed collection: 2015 Journal of Materials Chemistry C Hot Papers

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Article information

DOI: https://doi.org/10.1039/C5TC02034D
Article type: Paper
Submitted: 07 Jul 2015
Accepted: 04 Sep 2015
First published: 07 Sep 2015

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J. Mater. Chem. C, 2015,3, 10107-10113

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Synthesis, luminescence properties, and growth mechanisms of YF₃:Yb³⁺/Er³⁺ nanoplates

G. Murali, B. H. Lee, R. K. Mishra, J. M. Lee, S. Nam, Y. D. Suh, D. Lim, J. H. Lee and S. H. Lee, J. Mater. Chem. C, 2015, 3, 10107 DOI: 10.1039/C5TC02034D

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Journal of Materials Chemistry C