Tuning NaYF4 Nanoparticles through Alkaline Earth Doping

Nanomaterials

Xian Chen¹  Dengfeng Peng¹ 

[1] Department of Physics and Materials Science, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong; E-Mails:

关键词: impurity doping;    nanoparticles;    phase transformation;    upconversion;   

DOI  :  10.3390/nano3040583

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.