Uranium Based Phosphors And Compositions For Displays And Lighting Applications

Abstract: A uranium-based phosphor selected from (i) phosphors 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), where the phosphor having formula I or II is doped with an activator ion including Pr3+, Sm3+, or mixtures thereof, 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; (ii) a phosphor having formula I or II, where the phosphor having formula I or II is doped with an activator ion selected from Eu3+, Pr3+, Sm3+, and mixtures thereof; and a counter ion comprising one or more alkali metal ions; and (iii) phosphors having formula III A2UO2[P,V]2O7 (III) where the phosphors having formula III are doped with an activator ion selected from: Eu3+, Pr3+, Sm3+, and mixtures thereof, where A is Li, Na, K, Rb, Cs, or a combination thereof.

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