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Research Article | Open Access

Preparation of Upconversion Nanocrystals NaYF4: Yb/Tm with Hydro(solvo)thermal Methods

Feifei Zhao, Dongguang Yin( )
College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
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Abstract

A upconversion nanocrystal of NaYF4:Yb/Tm was synthesized successfully by two different methods of solvothermal and hydrothermal, respectively. The properties of the products were characterized and compared. The results showed that the nanocrystal prepared by hydrothermal method exhibited uniform hexagonal phase and large size, while the nanocrystal prepared by solvothermal method displayed high upconversion luminescence (UCL) and small size. The UCL intensity of the nanocrystal from solvothermal method was higher than that of hydrothermal method. This is the first time to systematically compare the performances of the upconversion nanocrystal prepared by solvothermal and hydrothermal methods, which provides some new insight into the preparation of upconversion nanomaterials with intense UCL and controllable morphology.

Keywords

SynthesisUpconversion luminescenceNaYF4NaLuF4 and NaGdF4-based upconversion nanocrystalsHydro(solvo)thermal methods

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Nano Biomedicine and Engineering
Volume 9 Issue 2,
June 2017
Pages 107-111
DOI: 10.5101/nbe.v9i2.p107-111
Cite this article:
Zhao F, Yin D. Preparation of Upconversion Nanocrystals NaYF4: Yb/Tm with Hydro(solvo)thermal Methods. Nano Biomedicine and Engineering, 2017, 9(2): 107-111. https://doi.org/10.5101/nbe.v9i2.p107-111

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Received: 02 May 2017
Accepted: 23 May 2017
Published: 24 May 2017
© 2017 Feifei Zhao, Dongguang Yin.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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