Sol-Gel Derived Eu³⁺-Doped Gd₂Ti₂O₇ Pyrochlore Nanopowders

Figure 2

FTIR spectra of undoped Gd₂Ti₂O₇: (a) gel, (b) dried gel at 70°C for 5 h, and (c) powder obtained after calcination at 840°C for 4 h.