Luminescence properties of LaOX (X = F, Cl, Br):Eu phosphors

摘要

The rare-earth activated LnOX (Ln = Y, La, Gd, X = F, Cl, Br) phosphors have been extensively investigated due to their application as X-ray intensifying phosphors [1, 2]. General properties of luminescence of phosphors based on LaOBr activated by small amounts of Eu~(3+) in the LnOX host series has been carried out by various authors because of the interesting nephlauxeic effect [4-6].