A red-emitting phosphor and its luminescent properties

Under 616 nm monitoring, excitation peaks at 395, 465, and 535 nm were observed for the red-emitting phosphor Li(0.3)Y(0.82)Mo(0.1)W(0.9)O(4+delta): 0.08Eu(3+) (LYMW), which was synthesized using the solid-state method. Particularly in the range of 250 to 420 nm, excited peaks can be assigned to the transitions of O(2-)-->Mo(6+)/W(6+)/Eu(3+) and four sharp peaks can be assigned to the 4f-4f transition of Eu(3+) (approximately 360 nm from the (7)F(0)-->(5)D(4) transition, approximately 380 nm from the (7)F(0)-->(5)L(7) transition, approximately 395 nm from the (7)F(0)-->(5)(L6) transition, and approximately 415 nm from the (7)F(0)-->(5)D(3) transition).