Light emitting diode (LED) red fluorescent material and lighting device having the same

摘要

Provided are a Light Emitting Diode (LED) red fluorescent material and a lighting device having the same. The florescent material consists of elements M, A, D, X, L and Z, wherein element M at least contains one or more than one element of Be, Mg, Ca, Sr, Ba and Zn; element A at least contains one or more than one element of B, Al, Ga, In, La, Gd, Lu, Sc and Y; element D at least contains one or more than one element of Si, Ge, C, Sn, Ti, Zr and Hf; element X at least contains one or more than one element of N, O and F; element L at least contains one or more than one element of S, Se and Te; and element Z at least contains one or more than one element of a rare earth element or a transition-metal element.

主权项

1. A Light Emitting Diode (LED) red fluorescent material, comprising:
an element M, wherein the element M contains at least one element of Be, Mg, Ca, Sr, Ba, and Zn; an element A, wherein the element A contains at least one element of B, Al, Ga, In, La, Gd, Lu, Sc and Y; an element D, wherein the element D contains at least one element of Si, Ge, C, Sn, Ti, Zr and Hf; an element X, wherein the element X contains at least one element of N, O, and F; an element L, wherein the element L contains at least one element of S, Se, and Te; an element Z, wherein the element Z contains at least one of a rare-earth element and a transition-metal element; and a formula of MmAaDbXdLy:Zn, wherein 0.5≦m≦1.5, 0.5≦a≦1.5, 0.5≦b≦1.5, 2≦d≦5, 0.00001≦y≦0.02 and 0.0001≦n≦0.1.