PHOSPHOR AND METHOD FOR PRODUCING THE SAME, CRYSTALLINE SILICON NITRIDE AND METHOD FOR PRODUCING THE SAME, PHOSPHOR-CONTAINING COMPOSITION, LIGHT-EMITTING DEVICE USING THE PHOSPHOR, IMAGE DISPLAY DEVICE, AND ILLUMINATING DEVICE

摘要

Disclosed is a complex oxynitride phosphor represented by the formula below, which is obtained by firing a phosphor precursor in the presence of a flux and improved in quantum efficiency and/or durability. M1 xBayM2 zLuOvNw (In the formula, M1 represents at least one activator element selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb; M2 represents at least one divalent metal element selected from the group consisting of Sr, Ca, Mg and Zn; L represents a metal element selected from group 4 or group 14 metal elements of the periodic table; and 0.00001 = x = 3, 0 = y = 2.99999, 2.6 = x + y + z = 3, 0 < u = 11, 6 < v = 25, and 0 < w = 17.)