Figure 2

Characterization of synthesized NaYF4:Er3+,Yb3+ CNP: (a) FESEM and (b) HR-TEM images, (c) SAED pattern and (d) EDX spectrum corresponding to the isometric nanoparticles in (c).

Characterization of synthesized NaYF4:Er3+,Yb3+ CNP: (a) FESEM and (b) HR-TEM images, (c) SAED pattern and (d) EDX spectrum corresponding to the isometric nanoparticles in (c).