| abstract |
A phosphor and a light emitting device exhibiting high luminance and excellent stability are provided. A fluorescence having the general formula M (0) a M (1 ) b M (2) x- (vm + n) M (3) (vm + n) -y O n N fluorescent material having a composition represented by the z-n The above problems can be solved by the body. However, M (0) is selected from Li, Na, Be, Mg, Ca, Sr, Ba, Sc, Y, La, Gd, and Lu, and M (1) is Mn, Ce, Pr, Nd, Sm, and Eu. , Tb, Dy, Ho, Er, Tm, Yb, M (2) is selected from Si, Ge, Sn, Ti, Hf, Zr, and M (3 is Be, B, Al, Ga, In, Selected from Tl and Zn, O is oxygen, N is nitrogen, 33 ≦ x ≦ 51, 8 ≦ y ≦ 12, 36 ≦ z ≦ 56, 3 ≦ a + b ≦ 7, 0.001 ≦ b ≦ 1 .2, me = a + b, 0.8 · me ≦ m ≦ 1.2 · me, 0 ≦ n ≦ 7, v = {a · v (0) + b · v (1)} / (a + b) It is characterized by satisfying. [Selection figure] None |