Red line emitting phosphors for use in LED applications

摘要

Light emitting devices including backlights having a light source and a phosphor material including a complex fluoride phosphor activated with Mn⁴⁺ which may include at least one of (A) A₂[MF₅]:Mn⁴⁺; where A is selected from Li, Na, K, Rb, Cs, NH₄, and combinations thereof; and where M is selected from Al, Ga, In, or combinations thereof; (B) A₃[MF₆]:Mn⁴⁺, where A is selected from Li, Na, K, Rb, Cs, NH₄, and combinations thereof; and where M is selected from Al, Ga, In, or combinations thereof; (C) Zn₂[MF₇]:Mn⁴⁺, where M is selected from Al, Ga, In, or combinations thereof; and (D) A[In₂F₇]:Mn⁴⁺ where A is selected from Li, Na, K, Rb, Cs, NH₄, or combinations thereof.