abstract |
A vacuum ultraviolet ray-excited light-emitting phosphorncomprising a compound represented by formulan(Ba x M 1-x ) 1-0.25y Mg 1-y Al 10+y O 17+0.25y as a substrate, and Eu as annactivator, wherein M represents Ca, Sr, or Ca and Sr, x and ynsatisfy the following relations, 0.5≦x≦1, and 0.05≦y≦0.15. |