PHOSPHOR, PRODUCTION METHOD OF PHOSPHOR, AND LIGHT-EMITTING DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a phosphor capable of achieving a warm white-colored or electric bulb-colored light-emitting device having a high average color rendering number (Ra).SOLUTION: When being excited by light having a luminescence peak in the wavelength range of 250-500 nm, a phosphor in an embodiment shows a luminescence peak in the wavelength range of 565-600 nm, and has the half band width of 115 nm or more and 180 nm or less and a crystal structure of SrSiAlON.