| 摘要 |
To provide a new phosphor of which fluorescence contains much red light component and has a large full width at half maximum, the crystal phase represented by the formula [I] is included in the phosphor.
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 3-x-y-z+w2 M z A 1.5x+y-w2 Si 6-w1-w2 Al W1+w2 O y+w1 N 1l-y-w1 €ƒ€ƒ€ƒ€ƒ€ƒ[I]
(R represents La, Gd, Lu, Y and/or Sc, M represents Ce, Eu, Mn, Yb, Pr and/or Tb, A represents Ba, Sr, Ca, Mg and/or Zn, and x, y, z, w1 and w2 are the numeric values in the following ranges: 1 / 7 ‰¤ 3 - x - y - z + w �¢ 2 / 6 < 1 / 2 , 0 < 1.5 x + y - w �¢ 2 / 6 < 9 / 2 , 0 < x < 3 , 0 ‰¤ y < 2 , 0 < z < 1 , 0 ‰¤ w �¢ 1 ‰¤ 5 , 0 ‰¤ w �¢ 2 ‰¤ 5 , and 0 ‰¤ w �¢ 1 + w �¢ 2 ‰¤ 5. ) |
