Photoluminescence in rare earth-doped complex hexafluoride phosphors.

In this study, using a simple combustion process and a wet chemical process, fluorides showing intense photoluminescence were prepared and developed as low-cost phosphors. The prepared phosphors were characterized by photoluminescence (PL) techniques. PL emission spectra of the phosphor suggest the presence of Eu(3+) as well as Eu(2+) ions in LiMgBF(6):Eu and Li(2) NaBF(6):Eu lattice sites. This article summarizes the fundamentals and possible applications of optically useful inorganic fluoride with visible photoluminescence of doped Eu(3+) and Eu(2+) ions. Our results on LiMgBF(6):Ce and Li(2) NaBF(6):Ce are also reported.