Synthesis and characterization of KCe(PO₃ )₄ doped with some lanthanide activators

KCe(PO₃ )₄ doped with Dy³⁺ ,Tb³⁺ ,Yb³⁺ and Nd³⁺ phosphors were synthesized by a solid state diffusion method. The prepared samples were characterized by X-ray diffraction and photoluminescence. KCe(PO₃ )₄ exhibits emission in ultraviolet (UV) region which indicates weak Ce³⁺ -Ce³⁺ interaction. The Ce³⁺ -Ce³⁺ energy transfer is not efficient. In light of this, energy transfer from Ce³⁺ to other lanthanides like Dy³⁺ , Tb³⁺ ,Yb³⁺ and Nd³⁺ is rather surprising.