| abstract |
Disclosed is a complex oxynitride phosphor represented by the general formula [I] below, which provides a green phosphor having a high conversion efficiency for blue or near-ultraviolet light and good color purity. M1xBayM2zLuOvNw [I] In the formula [I], M1 represents Cr, Mn, Fe, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm or Yb; M2 represents Sr, Ca Mg or Zn; L represents a group 4 or 14 metal element of the periodic table; and x, y, z, u, v and w respectively represent a number satisfying the following relations. 0.00001 ≤ x ≤ 3; 0 ≤ y ≤ 2.99999; 2.6 ≤ x + y + z ≤ 3; 0 < u ≤ 11; 6 < v ≤ 25; 0 < w ≤ 17 |