| 摘要 |
Novel aluminate-based green phosphors are disclosed having the formula M<SUB>1-x</SUB>Eu<SUB>x</SUB>AlyO<SUB>1+3y/2</SUB>, where M is at least one of a divalent metal selected from the group consisting of Ba, Sr, Ca, Mg, Mn, Zu, Cu, Cd, Sm, and Tm; 0.1<x<0.9; and 0.5=y=12. phosphors are configured to absorb substantially non-visible radiation having a wavelength ranging from about 280 to 420 nm, and emit visible green light having a wavelength ranging from about 500 to 550 nm. In a particular embodiment, the phosphor contains the divalent alkaline earth metals Mg, and Mn may be present as well. A novel feature of the present aluminate-based green phosphors is the relatively narrow range of wavelength over which they can be configured to emit; in one embodiment, this range is from about 518 nm to 520 nm. In an alternative embodiment, the phosphor emits visible light with a peak wavelength having a full width at half maximum of less than or equal to about 40 nm. |
| 申请人 |
INTEMATIX CORPORATION;WANG, NING;DONG, YI;CHENG, SHIFAN;LI, YI-QUN |
发明人 |
WANG, NING;DONG, YI;CHENG, SHIFAN;LI, YI-QUN |
