The Progress of TiO_𝟐 Nanocrystals Doped with Rare Earth Ions

Figure 3

Site-selective emission spectra of the Eu3n : TiO, nanocrystals at 10 K, with curves (1) 𝜆_exc=464.7 nm for Site I; (2) 𝜆_exc=470.6 nm for Site II; and (3) 𝜆_exc=472.0 nm for Site a, respectively. The inset shows the 10 K emission spectrum under the band gap excitation at 343.1 nm. Reprinted with permission from [81].