| abstract |
An object of the present invention is to provide a yellow phosphor having excellent excitation characteristics for blue light. The same orthorhombic P2 1 2 1 2 1 as LaSi 3 N 5 is used as a space group, and the following formula 1: (In Formula 1, 0 <x <1, 0 <y <0.1, 0 <1-xy, 0 ≦ z ≦ 2; A is selected from the group consisting of Ca, Ba, Sr, and Mg. Ln is at least one selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y .) A yellow phosphor represented by is provided. [Selection figure] None |