2022 年 130 巻 1 号 p. 138-142
In this study, blue-color emitting phosphors CaMgSi2O6:Eu2+ (CMS:Eu2+) were synthesized by the polymerizable complex method at 1000 °C in a reducing atmosphere. After the synthesis, the desired CMS crystals were obtained, but a small amount of impurity phases, such as Ca2MgSi2O7 and Ca3MgSi2O8, were contained. By adding lithium carbonate Li2CO3 as a flux to the polymerizable complex method and washing with 1 mol dm−3 HCl solution, the desired CMS:Eu2+ was obtained in a single phase. The maximum luminescence intensity was obtained at a flux concentration of 8 mol % for the composition CaMgSi2O6 when the amount of added flux was varied.
