Phosphor and producing method of phosphor and light-emitting device employing the same

摘要

The embodiment of the present disclosure provides a phosphor exhibiting an emission peak in the wavelength range of 565 to 600 nm under excitation by light having a peak in the wavelength range of 250 to 500 nm. The emission peak has a half width of 115 to 180 nm inclusive. This phosphor has a crystal structure of Sr 2 Si 7 Al 3 ON 13 , and is activated by cerium.