| abstract |
Provided are a red phosphor having increased reflectivity in a green color gamut and a production method therefor, and a white light source, an illumination device, and a display device using the same. A red phosphor comprises a composition containing an alkaline earth metal element (A), europium (Eu), silicon (Si), aluminum (Al), oxygen (O), and nitrogen (N) at atomic ratios in the following Formula (1), and further containing carbon (C), n [A (m-x) Eu x ]Si 9 Al y O n N {12+y-2(n-m)/3 } (1)n n where m, n, x, and y respectively satisfy 3<m<5, 0<n<10, 0<x<1, and 0<y<2, wherein the alkaline earth metal element (A) includes at least barium (Ba). |