Sol-Gel Derived Eu³⁺-Doped Gd₂Ti₂O₇ Pyrochlore Nanopowders

Figure 5

SEM image of 3 at.% Eu³⁺-doped Gd₂Ti₂O₇ nanopowder under (a) low (×10000) and (b) high magnification (×50000). The bright-field TEM images show that (c) most particles have irregular particles size and shape and that (d) nanoparticles are organized in agglomerates, some of which formed the bigger crystals. The SAED diffraction pattern of Gd₂Ti₂O₇ presented as an inset in Figure 5(c) shows good crystallinity of the material.

(a)

(b)

(c)

(d)