| 摘要 |
Disclosed herein is a novel group of carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the present invention is directed to a novel family of carbidonitride-based phosphors expressed as follows: Ca1-xAlx-xySi1-x+xyN2-x-xyCxy:A  (1); Ca1-x-zNazM(III)x-xy-zSi1-x+xy+zN2-x-xyCxy:A  (2); M(II)1-x-zM(I)zM(III)x-xy-zSi1-x+xy+zN2-x-xyCxy:A  (3); M(II)1-x-zM(I)zM(III)x-xy-zSi1-x+xy+zN2-x-xy-2w/3CxyOw-v/2Hv:A  (4); and M(II)1-x-zM(I)zM(III)x-xy-zSi1-x+xy+zN2-x-xy-2w/3-v/3CxyOwHv:A  (4a), wherein 0<x<1, 0<y<1, 0≦̸z<1, 0≦̸v<1, 0<w<1, x+z<1, x>xy+z, and 0<x-xy-z<1, M(II) is at least one divalent cation, M(I) is at least one monovalent cation, M(III) is at least one trivalent cation, H is at least one monovalent anion, and A is a luminescence activator doped in the crystal structure. |
