Preparation of SiO₂-Capped Sr₂MgSi₂O₇:Eu,Dy Nanoparticles with Laser Ablation in Liquid

Figure 2

SEM images of nanoparticles with or without SiO₂-capping. The reaction time of the SiO₂ capping: (a) 0 hours, (b) 1 hour, and (c) 4 hours.

(a)

(b)

(c)