Synthesis and Luminescence Properties of Lanthanide Ion-Doped Nitride Phosphors

摘要

Novel techniques were applied to synthesize nitride phosphors for white LED illumination. Without using alkaline earth metal nitrides, M_2Si_5N_8:Eu~(2+) (M=Ca, Sr, and Ba) are produced by nitriding the corresponding oxides with carbonaceous reductants. Meanwhile, direct nitriding of the component metals or hydrides such as M, Si, and/or Al are effective to produce Ba_2Si_5N_8:Eu~(2+) and CaAISiN_3:Eu~(2+) as hiqh-quality phosphors.