Near UV excited line and broad band photoluminescence of an anion-ordered oxyfluoride.
A near UV excitable phosphor Sr(2.85)Eu(0.1)Al(0.9)In(0.1)O(4-alpha)F(1-delta) was made by reducing as-made Sr(2.85)Eu(0.1)Al(0.9)In(0.1)O(4)F. This material reveals defect-induced broad-band photoluminescence emissions centered at 600 nm and a line emission at 619 nm due to the(5)D(0) --> (7)F(2) transition of the Eu activator (curve 1). Such combined line and broad-band emitters have the potential when combined with another broad-band emitting phosphor with emissions near 500 nm to create white light by converting near-UV light from a Ga(1-x)In(x)N light-emitting device.
Park
Sangmoon
S
Silla University, Department of Engineering in Energy and Applied Chemistry, Busan 617-73, Republic of Korea.
Vogt
Thomas
T