Effect of flux compounds on the luminescence properties of Eu³⁺ doped YBO₃ phosphors

In this investigation, Eu³⁺ doped YBO₃ phosphors were synthesized by conventional solid state method at 1100°C under atmosphere condition. Meanwhile, different amounts of LiCl, BaCl₂ and CaCl₂ were used as the flux compounds to modify the morphology of the phosphor particles and also final luminescent properties. It was concluded that even small amounts of fluxes play a vital role in the growth of particles. Then the emission and excitation photoluminescence spectra were measured respectively at λ_exc = 240 nm and λ_em = 610 nm and it was found that using 2 wt.% of flux compounds has a significant influence on the emission intensity of YBO₃ phosphors.