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

Table 1

Summary of the fitting parameters for the fluorescence of three different erbium-doped nanocrystals and ratio between the fluorescence integrated intensity for crystals with 26.8 nm and 22.9 nm diameter calculated using (1).

Nanocrystals	𝐼0	𝐷 (nm)	𝐶	𝐼(26.8)/𝐼(22.9)
BaTiO3 : Er^3+ [18]	(1.2±0.1)×10^−3	15.5±0.4	−0.8±0.1	1.24
BaYF5 : Yb^3+/Er^3+ [19]	290±20	18±1	−0.8±0.1	1.20
Y2O3 : Er^3+ [20]	(11±4)×10^3	20±1	−0.8±0.1	1.17