中文摘要：

采用高温固相法合成了Ca8Mg（SiO4）4Cl2∶Dy3＋和Ca8Mg（SiO4）4Cl2∶Eu2＋,Dy3＋荧光粉.Dy3＋激发的Ca8Mg（SiO4）4Cl2荧光粉发射光谱在蓝光区和黄光区有两个发射带,分别对应4F9/2→6H1 5/2和4F9/2→6H1 3/2的跃迁发射,蓝光和黄光混合成白光,通过Dy3＋浓度改变可以调节白光的色温和色坐标.Eu2＋,Dy3＋共激发Ca8Mg（SiO4）4Cl2的发光强度明显比单掺Eu2＋荧光粉的高,这是由于Dy3＋→Eu2＋之间存在共振能量传递.

英文摘要：

The phosphors,Ca8Mg（SiO4）4Cl2∶Dy3＋ and Ca8Mg（SiO4）4Cl2∶Eu2＋,Dy3＋,were synthesized by high temperature solid state reaction.The emission spectrum of Ca8Mg（SiO4）4Cl2 activated by Dy3＋ consists of two emission bands： blue band and yellow band,originated from 4F9/2→6H15/2,and 4F9/2→6H13/2 transition.Dy3＋ concentration affects color coordination and color temperature of the sample.The intensity of Eu2＋ and Dy3＋ co-doped CMSC is stronger than that of Eu2＋ singly doped CMSC.It indicates that a energy transfer from Dy3 ＋ to Eu2 ＋ takes place in CMSC： Eu2＋ ,Dy3＋ phosphor.