Fig. 1. Schematics of coating TiO₂ on surface of YAG:Ce³⁺phosphor

Fig. 2. X-ray diffraction patterns of anatase-and rutile-TiO₂ synthesized at different temperatures

Fig. 3. Formation amount of anatase-and rutile-TiO₂ synthesized at different temperatures

Fig. 4. SEM images of TiO₂ nano-particles at different temperatures

Fig. 5. SEM images of the samples of YAG:Ce³⁺ and YAG:Ce³⁺ coated with TiO₂

Fig. 6. Raman spectrograms of anatase TiO₂, YAG:Ce³⁺ and YAG:Ce³⁺ coated with TiO₂

Fig. 7. Emission spectrograms of YAG:Ce³⁺ coated with TiO₂ at different contents of TTBO/H₂O

Fig. 8. Emission spectrograms of YAG:Ce³⁺ coated with TiO₂ at different temperatures