| abstract |
One aspect of the present disclosure provides a nitride fluorescent material which is represented by general formula MAlSiN3 (M=Ca, Sr), in which a portion of M is substituted with Eu, and in which the main crystal phase has a structure identical with a CaAlSiN3 crystal phase, wherein the fluorescent material has an light emission peak wavelength of 640 nm or more, and the half width of the light emission peak wavelength is 80 nm or less. |