Influence of Impurities on the Luminescence of Er³⁺ Doped BaTiO₃ Nanophosphors

Figure 2

TEM images of the investigated nanopowders displaying the different particles shape and size for the crystals calcined at (a) 700°C and (b) 850°C. Detailed views of the BaTiO₃ nanocrystals calcined at (c) 700°C and (d) 850°C are also shown.

(a)

(b)

(c)

(d)