Luminescent properties of BaMgAl₁₀O₁₇:Eu²⁺ phosphors modified with MgF₂

BaMgAl₁₀O₁₇:Eu²⁺ phosphors particles were prepared by the conventional solid-reaction method. MgF₂ was coated uniformly on the surface of BaMgAl₁₀O₁₇:Eu²⁺ phosphor particles by the emulsion method. The structure, phosphor, average particle size and coated thickness of BaMgAl₁₀O₁₇:Eu ²⁺ phosphor coated without MgF₂ were measured by XRD and TEM. The average particle size is about 7 mm and the coating thickness is about 50nm. The excitation spectra and emission spectra of the phosphor coated with MgF₂ were researched by fluorescent divide spectroscopy (FDS).