| 摘要 |
Provided is a phosphor having light emission characteristics different from those of conventional phosphors, which has high light emission intensity even when combined with LEDs of less than 450 nm, and which is chemically and thermally stable. This phosphor includes: crystals containing an element A, an element D, an element E, and an element X (where A is at least one element selected from Li, Mg, Ca, Sr, Ba, and La; D is at least one element selected from Si, Ge, Sn, Ti, Zr, and Hf; E is at least one element selected from B, Al, Ga, In, Sc, and Y; and X is at least one element selected from O, N, and F), and represented by Ba1Si4Al3N9; inorganic crystals having a crystal structure identical to that of crystals represented by Ba1Si4Al3N9; or an inorganic compound in the form of a solid solution of an element M (where M is at least one element selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb) in a solid solution of the crystals represented by Ba1Si4Al3N9 and the inorganic crystals having a crystal structure identical to that of crystals represented by Ba1Si4Al3N9. |
