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Tuning NaYF4 Nanoparticles through Alkaline Earth Doping

Author(s): Xian Chen | Dengfeng Peng | Feng Wang

Journal: Nanomaterials
ISSN 2079-4991

Volume: 3;
Issue: 4;
Start page: 583;
Date: 2013;
Original page

Keywords: impurity doping | nanoparticles | phase transformation | upconversion

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.

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