Characterization and properties of green emitting Ca3SiO4Cl2:Eu2+ powder phosphor for white light-emitting diodes

An efficient green emitting phosphor, Eu2+-doped Ca3SiO4Cl2, is reported. Its excitation band is extending from 260 to 470 nm, which is coupled well with the emission of UV LED (350-410 nm) and blue LED (450-470 nm). It exhibits a strong green emission centered at 505 nm with chromatic coordination (0.25, 0.57), which indicates that it could be a good green phosphor candidate for creating white light in phosphor-converted white LEDs.