NEW PHOSPHORS, SUCH AS NEW NARROW-BAND RED EMITTING PHOSPHORS, FOR SOLID STATE LIGHTING

文件类型：PDF文档
文件大小：361K
The invention provides, amongst others for application in a lighting unit, a phosphor having the formula M1-x-y-zZzAaBbCcDdEeN4-nOn : ESx, REy (I), with M = selected from the group consisting of Ca, Sr, and Ba; Z = selected from the group consisting of monovalent Na, K, and Rb; A = selected from the group consisting of divalent Mg, Mn, Zn, and Cd; B = selected from the group consisting of trivalent B, A1 and Ga; C = selected from the group consisting of tetravalent Si, Ge, Ti, and Hf; D = selected from the group consisting of monovalent Li, and Cu; E = selected for the group consisting of P, V, Nb, and Ta; ES = selected from the group consisting of divalent Eu, Sm and Yb; RE = selected from the group consisting of trivalent Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Tm; 0 ≤ x ≤ 0.2; 0 ≤ y ≤ 0.2; 0 < x+y ≤ 0.4; 0 ≤ z < l; 0 ≤ n ≤ 0.5; 0 ≤ a ≤ 4 (such as 2 ≤ a ≤ 3); 0 ≤ b ≤ 4; 0 ≤ c ≤ 4; 0 ≤ d ≤ 4; 0 ≤ e ≤ 4; a + b + c +d + e = 4; and 2a + 3b + 4c +d + 5e = 10 - y - n + z.