| 摘要 |
PROBLEM TO BE SOLVED: To efficiently excite light from near-ultraviolet to visible ranges of wavelengths of 350-500 nm. ! SOLUTION: This invention provides a red light-emitting phosphor represented by the general formula, (x-a) MgO (a/2) Me2O3 yMgF2 (1-b) GeO2 (b/2) Mt2O3: zMn4+ (with respect to x, y, z, a, and b in the general formula, the relations of 2.0≤x≤4.0, 0≤y≤2.0, 0<z<0.1, 0≤a<1.0, and 0≤b<1.0, and a+b≠0 are satisfied; Me in the general formula is at least one selected from Li, Na, K, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, V, Nb, Ta, Cr, Mo, and W; and Mt in the general formula is at least one selected from B, Al, Ga, and In). ! COPYRIGHT: (C)2015,JPO&INPIT |
