CaCO3 was chosen as main raw material, and wet chemical method was used for the preparation of precursor. According to TG SDTA analysis, the precursor was directly calcined at 850 ℃ for 2 h to obtain CaO∶Eu3+, Li+. The structure, morphology and spectra properties of the samples were characterized by XRD, laser particle size analyzer, SEM, FT IR, Raman, UV and PL PLE spectra, respectively. The results showed that the Eu3+ ions as a luminescent center substituted Ca2+ ions into the lattice, and the cubic CaO structure could be maintained. Li+ ion as sensation was helpful to the energy transfer between O2- and Eu3+, and could enhance the luminescence. The size of particles was 0.5~1.0 μm. The obtained sample could emit the light with the wave length of 592 nm (5D07F2 ) under the radiation of the ultraviolet light with the wavelength of 244 nm, which indicated that Eu3+ ions mainly located in strict symmetric position of the crystal lattice and belonged to red luminescence.
