The emission peaks are ascribed to Eu3+ ions transition from 5DJ(J= 0, 1, 2) to 7FJ(J=0, 1, 2, 3, 4).

• 发射光谱为线状光谱,归属于Eu3+的5DJ(J=0,1,2)到7FJ(J=0,1,2,3,4)的跃迁。