| 摘要 |
A phosphor characterized by being represented by the formula Eu<SUB>2-X</SUB>Ln<SUB>X</SUB>M<SUB>Y</SUB>O<SUB>3(y+1)</SUB>, wherein 0 <=x <2, Y is 2 or 3, Ln represents at least one member selected from among Y, La, and Gd, and M represents at least one member selected from the group consisting of W and Mo. This phosphor is effectively excited by visible light or UV radiation having a wavelength of 220 to 550 nm for a desired light emission, particularly red light emission with a high efficiency. Therefore, the phosphor is advantageously employed in light-emitting devices such as a light-emitting screen, a light-emitting diode, and a fluorescent lamp. |
