| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel blue to blue green phosphor useful for white light emission LEDs.SOLUTION: A phosphor comprises a crystal phase having a composition represented by the following formula [1]: MSrAlSiN[1](in the formula [1], M is an activation element, m, a, b, c, d independently represent a value satisfying the following formulas: 0<m≤0.2, m+a=1, 0.68≤b≤1.1, 5.6≤c≤8.4 and 8.1≤d≤12.2).SELECTED DRAWING: Figure 1 |
