| 摘要 |
The present invention provides a green light-emitting phosphor for a light-emitting device excited by vacuum ultraviolet rays, a light-emitting device, and a method of preparing the same. The green light-emitting phosphor is represented by the formula A<SUB>x</SUB>B<SUB>4-2x</SUB>O<SUB>6-2x</SUB>:Mn<SUB>y</SUB>, wherein A is Mg, Zn, Ca, or Li, B is Al or Ga, 0.6<=x<=1.4, and 0.01<=y<=0.1. The phosphor has excellent brightness, color purity, and discharging characteristics, and a short decay time. In one embodiment, the phosphor has a stable spinel structure, and is stable with regard to external influence such as heat, ion bombardment, and vacuum ultraviolet rays. Longer-lived light-emitting devices are also disclosed. |
