| abstract |
A green phosphor having high conversion efficiency with respect to blue or near ultraviolet light and good color purity, a light-emitting device, an image display device, an illumination device, and a phosphor-containing composition using the green phosphor. A composite oxynitride phosphor represented by the general formula [I], a light emitting device using the same, an image display device, an illumination device, and a phosphor-containing composition. M1 x Ba y M2 z L u O v N w [I] In the formula [I], M1 represents Cr, Mn, Fe, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb, M2 represents Sr, Ca, Mg, and Zn, L represents a metal element belonging to Group 4 or 14 of the periodic table, and x, y, z, u, v, and w are the following numerical values, respectively. 0.00001 ≦ x ≦ 3 0 ≦ y ≦ 2.9999 2.6 ≦ x + y + z ≦ 3 0 <u ≦ 11 6 <v ≦ 25 0 <w ≦ 17) [Selection figure] None |