Uranium-based phosphors and compositions for displays and lighting applications
OwnerSamuel Joseph Camardello, Anant A. Setlur +2inventors
InventorsSamuel Joseph Camardello, Anant A. Setlur, James E. Murphy, Matthew David Butts
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Abstract
A phosphor composition includes an activated uranium-based phosphor having formula I or II. The phosphor is doped with Eu3+ [Ba1−a−bSraCab]x[Mg,Zn]y(UO2)z([P,V]O4)2(x+y+z)/3 (I) [Ba1−a−bSraCab]p(UO2)q[P,V]rO(2p+2q+5r)/2 (II) where 0≤a≤1, 0≤b≤1, 0.75≤x≤1.25, 0.75≤y≤1.25, 0.75≤z≤1.25, 2.5≤p≤3.5, 1.75≤q≤2.25, and 3.5≤r≤4.5 and formula II excludes the combination where a is 0, b is 0, p is 3.5, q is 1.75, and r is 3.5. Phosphor compositions further including formula VI or other luminescent materials, such as quantum dots, devices and displays are also provided.
Claims20
A phosphor composition comprising an activated uranium-based phosphor having formula I or II:
- [Ba1−a−bSraCab]x[Mg,Zn]y(UO2)z([P,V]O4)2(x+y+z)/3 (I)
- [Ba1−a−bSraCab]p(UO2)q[P,V]rO(2p+2q+5r)/2 (II),
- wherein the phosphor is doped with Eu3+, and
- wherein 0≤a≤1, 0≤b≤1, 0.75≤x≤1.25, 0.75≤y≤1.25, 0.75≤z≤1.25, 2.5≤p≤3.5,1.75≤q≤2.25, and 3.5≤r≤4.5, with the proviso that formula II excludes the combination of a is 0, b is 0, p is 3.5, q is 1.75, and r is 3.5.
Dependencies are inferred from the claim text.