Potassium sodium tartrate-assisted hydrothermal synthesis of BaLuF5:Yb3+/Er3+ nanocrystals--颗粒学报PARTICUOLOGY

Sun, R., Qiu, P., Yin, T., Gao, G., Fu, H., Wang, K., . . . Cui, D. (2016). Potassium sodium tartrate-assisted hydrothermal synthesis of BaLuF5:Yb3+/Er3+ nanocrystals. Particuology, 24, 164-169. https://doi.org/10.1016/j.partic.2015.02.005

Potassium sodium tartrate-assisted hydrothermal synthesis of BaLuF₅:Yb³⁺/Er³⁺ nanocrystals

Rongjin Sun, Peiyu Qiu, Ting Yin, Guo Gao ^*, Hualin Fu, Kan Wang, Chunlei Zhang, Daxiang Cui ^*

Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Technology, Key Laboratory for Thin Film and Microfabrication Technology of Ministry of Education, School of Electronic Information and Electrical Engineering, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

10.1016/j.partic.2015.02.005

Volume 24, February 2016, Pages 164-169

Received 14 December 2014, Revised 6 February 2015, Accepted 12 February 2015, Available online 17 June 2015, Version of Record 21 January 2016.

E-mail: guogao@sjtu.edu.cn; dxcui@sjtu.edu.cn

Highlights

• BaLuF₅:Yb³⁺/Er³⁺ nanocrystals (UCNPs) were synthesized by PST-assisted hydrothermal method.

• Narrow size distribution and good dispersibility of UCNPs were attributed to the effect of PST.

• Temperature, holding time and pH affected the formation of UCNPs.

Abstract

Highly-dispersed BaLuF₅:Yb³⁺/Er³⁺ nanocrystals were prepared by a facile potassium sodium tartrate-assisted hydrothermal method. The average particle size was approximately 20–25 nm. The formation mechanism is discussed. Potassium sodium tartrate led to form a complex with an approximately three-dimensional network structure, which insured largely concurrent nucleation. As a result, we acquired uniform nanoparticles. The hydrothermal temperature, holding time, and pH value were important factors affecting the formation of the BaLuF₅:Yb³⁺/Er³⁺ nanocrystals. We investigated their influence on the formation and realized the optimal reaction parameters. Remarkably, potassium sodium tartrate also contributed to the biocompatibility and potential biomedical applications of BaLuF₅:Yb³⁺/Er³⁺ nanocrystals by decomposing into small organic groups attached to the nanoparticles.

Graphical abstract

Keywords

Upconversion; BaLuF₅; PST; Hydrothermal synthesis

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