| abstract |
An aluminate phosphor having good oxidation resistance while suppressing an increase in cost, and a method for producing the same. An aluminate phosphor having a composition of M i MgAl k O I : Eu m is provided. However, M is one or more selected from Ba, Sr, and Ca, and 0.8 ≦ i + m <1, 8 ≦ k <10, 13.8 ≦ I <17, and I = (3k + 2i + 2m + 2). . Alternatively, as a method for producing an aluminate phosphor, when one or more selected from Ba, Sr, and Ca is J, J, Eu, Mg, and Al are in the same order (J + Eu): Mg: Al: = C: 1: d (where 0.8 ≦ c <1, 8 ≦ d <10), and a mixing step for preparing the raw material, and a baking step for baking the raw material after the mixing step Go through. [Selection] Figure 3 |