| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultraviolet phosphor having both a high light emission intensity and chemical stability.SOLUTION: The ultraviolet phosphor has a perovskite structure in which a luminescent center is Gd; a sensitizing ion is Pr: and a base body is YLnAlO, wherein Ln is one or two elements selected from La and Lu. The ultraviolet phosphor is preferably represented by a composition formula (YLn)GdPrAlO, wherein x is 0.005 to 0.20, y is 0.00 to 0.20, and z is 0.0 to 0.30. |
