Research Article
Controlled Synthesis of Water-Soluble NaYF4:Yb3+, Er3+ Nanoparticles with Surfactant Dependent Properties
Figure 5
The photographs of the as-prepared NaYF4:Yb3+, Er3+/Tm3+ NPs (sample H2) dispersed in aqueous solution under white light and 980 nm excitation.
