Influence of Rare Earth Elements (Sc, La, Gd, and Lu) to the Luminescent Properties of FED Blue Phosphor Y[sub 2]SiO[sub 5]:Ce

The emission spectra of were analyzed by Gaussian peak fitting. The emission mainly can be attributed to the transitions of 5d to and of ions. A weak peak at ∼460 nm arises from an independent luminescent center. Both the luminescent intensity and the peak height ratio are affected by content. For choosing an optimized content, the balance between brightness and color saturation was considered. and cannot replay to form solid solutions and doping them reduced luminescence very much. can be replaced by and to form solid solution in some ranges. The replacement of decreased the luminescence, whereas enhances the luminescence about 20% under cathode ray excitation. Lu-doping also improves color saturation.