SWIR pcLED and perovskite type and garnet type phosphors emitting in the 1000-1700 nm range
AssigneeLumileds LLC
InventorsPeter Josef Schmidt, Detlef Wiechert
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Abstract
A wavelength converting structure is disclosed, the wavelength converting structure including an SWIR phosphor material having emission wavelengths in the range of 1000 to 1700 nm, the SWIR phosphor material including at least one of a perovskite type phosphor doped with Ni2+, a perovskite type phosphor doped with Ni2+ and Cr3+, and a garnet type phosphor doped with Ni2+ and Cr3+.
Claims19
A wavelength converting structure comprising an SWIR phosphor material having emission wavelength in the range of 1000 to 1700 nm, the SWIR phosphor material including:
- RET1-2pO3:Nip,Zp where RE=La, Gd, Y, Lu, Yb, Nd, Tm, or Er, or mixtures thereof, T=Al, Ga, Sc, or In, or mixtures thereof, and Z=Ti, Hf, Zr, Si, Ge, or Sn, or mixtures thereof;
- 0<p≤0.1.
A wavelength converting structure comprising an SWIR phosphor material having emission wavelength in the range of 1000 to 1700 nm, the SWIR phosphor material including:
- RE3AA2−2q−sTT3O12:Niq,Zq,Crs where RE=La, Gd, Y, Lu, Yb, Nd, Tm, or Er, or mixtures thereof, AA=Ga, Sc, In, Al, or Lu, T=Al, or Ga, or mixtures thereof, Z=Ti, Hf, Zr, Si, Ge, or Sn, or mixtures thereof;
- 0<q≤0.1, 0<s≤0.2.
A wavelength converting structure comprising an SWIR phosphor material having emission wavelength in the range of 1000 to 1700 nm, the SWIR phosphor material including at least one of a perovskite type phosphor doped with Ni2+, a perovskite type phosphor doped with Ni2+ and Cr3+, and a garnet type phosphor doped with Ni2+ and Cr3+.
Dependencies are inferred from the claim text.