| 简介 |
A green phosphor that exhibits a green luminance higher than those of conventional rare-earth-activated sialon phosphors, having durability higher than those of conventional oxide phosphors, and that emits light by ultraviolet or visible light. There is provided a phosphor comprising a crystal of oxynitride or nitride with β-type Si3N4 crystal structure and, solid dissolved therein, Eu, which phosphor emits a fluorescence having a peak at a wavelength falling within the wavelength range of 500 to 600 nm upon excitation source irradiation. The luminous intensity within the wavelength range of 500 to 600 nm is high, so that the phosphor is excellent as a green phosphor. |
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