Fay, Sharpe, Fagan, Minnich & McKee, LLP
Garnet phosphor materials having enhanced spectral characteristics
Phosphor compositions having the formulas (Tb1−x−y−z−wYxGdyLuzCew)3MrAls−rO12+δ, where M is selected from Sc, In, Ga, Zn, or Mg, and where 0<w≦0.3, 0≦x<1, 0≦y≦0.4, 0≦z<1, 0≦r≦4.5, 4.5≦s≦6, and −1.5≦δ≦1.5; (RE1−x−yScxCey)2A3−pBpSiz−qGeqO12+δ, where RE is selected from a lanthanide ion or Y3+, A is selected from Mg, Ca, Sr, or Ba, B is selected from Mg and Zn, and where 0≦p≦3, 0≦q≦3, 2.5≦z≦3.5, 0≦x≦1, 0≦y≦0.3, −1.5≦δ≦1.5; and (Ca1−x−y−zSrxBayCez)3(Sc1−a−cLuaDc)2Sin−wGewO12+δ, where D is either Mg or Zn, 0≦x<1, 0≦y<1, 0<z≦0.3, 0≦a<1, 0≦c≦1, 0≦w≦3, 2.5≦n≦3.5, and −1.5≦δ≦1.5. Also disclosed are light emitting devices including a light source and at least one of the above phosphor compositions.
General Electric Company
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Anant Achyut Alok Mani Shankar Holly Ann Emil Gopi
Setlur Srivastava Venugopal Comanzo Radkov Chandran