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Open AccessArticle

Tuning NaYF4 Nanoparticles through Alkaline Earth Doping

by Xian Chen 1, Dengfeng Peng 1 and Feng Wang 1,2,*
Department of Physics and Materials Science, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong
City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
Author to whom correspondence should be addressed.
Nanomaterials 2013, 3(4), 583-591;
Received: 10 October 2013 / Revised: 20 October 2013 / Accepted: 21 October 2013 / Published: 24 October 2013
(This article belongs to the Special Issue Current Trends in Up-Converting Nanoparticles)
Phase and size of lanthanide-doped nanoparticles are the most important characteristics that dictate optical properties of these nanoparticles and affect their technological applications. Herein, we present a systematic study to examine the effect of alkaline earth doping on the formation of NaYF4 upconversion nanoparticles. We show that alkaline earth doping has a dual function of tuning particle size of hexagonal phase NaYF4 nanoparticles and stabilizing cubic phase NaYF4 nanoparticles depending on composition and concentration of the dopant ions. The study described here represents a facile and general strategy to tuning the properties of NaYF4 upconversion nanoparticles. View Full-Text
Keywords: impurity doping; nanoparticles; phase transformation; upconversion impurity doping; nanoparticles; phase transformation; upconversion
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Chen, X.; Peng, D.; Wang, F. Tuning NaYF4 Nanoparticles through Alkaline Earth Doping. Nanomaterials 2013, 3, 583-591.

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