摘要:
Disclosed herein is a novel group of carbonitride and carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the inventive phosphors are expressed as follows: Cam/2Si12-(m+n)−xCxAlm+nN16-nOnEu2+ (1) M(II)m/2Si12-(m+n)−xCxM(III)m+nN16-nOn-y/2Hy:A (2) Mm/vSi12-(m+n)−xCxM(III)m+nN16-nOn-y/2Hy:A (3) Cam/2Si12-(m+n)+xAlm+n−xN16-n−xCxOn:Eu2+ (4) M(II)m/2Si12-(m+n)+xM(III)m+n−xN16-n−xCxOn-y/2Hy:A (5) Mm/vSi12-(m+n)+xM(III)m+n−xN16-n−xCxOn-y/2Hy:A (6) wherein v is the valence number of M, 0≦m
摘要:
Disclosed herein is a novel group of carbonitride and carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the inventive phosphors are expressed as follows: Cam/2Si12-(m+n)−xCxAlm+nN16-nOn:EU2+ (1) M(II)m/2Si12-(m+n)−xCxM(III)m+nN16-nOn-y/2Hy:A (2) Mm/vSi12-(m+n)−xCxM(III)m+nN16-nOn-y/2Hy:A (3) Cam/2Si12-(m+n)+xAlm+n−xN16-n−xCxOn:Eu2+ (4) M(II)m/2Si12-(m+n)+xM(III)m+n−xN16-n−xCxOn-y/2Hy:A (5) Mm/vSi12-(m+n)+xM(III)m+n−xN16-n−xCxOn-y/2Hy:A (6) wherein v is the valence number of M, 0≦m
摘要:
Disclosed herein are novel families of silicon carbidonitride phosphor compositions. In certain embodiments, optimal ranges of carbon content have been identified which provide excellent luminescence and thermal stability characteristics.
摘要:
Disclosed herein is a novel family of oxycarbidonitride phosphor compositions and light emitting devices incorporating the same. Within the sextant system of M—Al—Si—O—N—C—Ln and quintuplet system of M—Si—O—N—C—Ln (M=alkaline earth element, Ln=rare earth element), the phosphors are composed of either one single crystalline phase or two crystalline phases with high chemical and thermal stability. In certain embodiments, the disclosed phosphor of silicon oxycarbidonitrides emits green light at wavelength between 530-550 nm. In further embodiments, the disclosed phosphor compositions emit blue-green to yellow light in a wavelength range of 450-650 nm under near-UV and blue light excitation.
摘要:
Disclosed herein are novel families of silicon carbidonitride phosphor compositions. In certain embodiments, optimal ranges of carbon content have been identified which provide excellent luminescence and thermal stability characteristics.
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 xy+z, and 0
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; and (4) M(II)1−x−zM(I)zM(III)x−xy−zSi1−x+xy+zN2−x−xy−2w/3−v/3CxyOwHv:A, (4a) wherein 0 xy+z, and 0
摘要:
Disclosed herein is a novel family of oxycarbonitride phosphor compositions and light emitting devices incorporating the same. Within the sextant system of M-Al—Si—O—N—C-Ln and quintuplet system of M-Si—O—N—C-Ln (M=alkaline earth element, Ln=rare earth element), the phosphors are composed of either one single crystalline phase or two crystalline phases with high chemical and thermal stability. In certain embodiments, the disclosed phosphor of silicon oxycarbonitrides emits green light at wavelength between 530-550 nm. In further embodiments, the disclosed phosphor compositions emit blue-green to yellow light in a wavelength range of 450-650 nm under near-UV and blue light excitation.