| abstract |
According to the present invention, a chemically and thermally stable phosphor having unconventional light emitting properties, and having high light emitting intensity even when combined with an LED at 470 nm or less, contains crystals expressed by A3(D,E)8X1 4 that contain: element A, element D, and element X (where A represents one or more element selected from Li, Mg, Ca, Sr, and Ba; D represents one or more element selected from Si, Ge, Sn, Ti, Zr, Hf, and X represents one or more elements selected from O, N, and F), and if necessary element E (where E represents one or more elements selected from B, Al, Ga, In, Sc, Y, and La); crystals expressed by Sr3Si8O4N1 0; inorganic crystals having the same crystalline structure as the crystals expressed by Sr3Si8O4N1 0; or an inorganic compound in the form of a solid solution of element M (where M represents one or more elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb) in these solid-solution crystals. |