In this work, Eu2+-doped Ba3Si6O12N2-type phosphors (Si/Ba=2-4) were prepared by solid state reaction, the variations of crystal structure and the photoluminescence properties on cationic compositions are discussed. These phosphors showed the maximum emission intensity at Si/Ba=2.5.They also showed the maximum tolerance rage of 60% for substitution by Sr at Si/Ba=3.
