夜光纤维用SrMgSi_2O_7∶Eu^(2+),Dy^(3+)/光转换剂红色发光材料制备及性能研究  

Preparation and property of red luminous material∶SrMgSi_2O_7∶Eu^(2+),Dy^(3+)/light conversion agent for luminous fiber

作　　者：朱亚楠[1] 王建[1] 葛明桥[1] 

机构地区：[1]江南大学纺织服装学院,无锡214122

出　　处：《化工新型材料》2016年第11期100-102,共3页New Chemical Materials

基　　金：国家自然科学基金资助项目(51503082);中央高校基本科研业务费专项资金资助(JUSRP51505;JUSRP116020)

摘　　要：采用高温固相法制备光源中心稀土硅酸镁锶发光材料(SrMgSi_2O_7∶Eu^(2+),Dy^(3+)),通过偶联剂作用将SrMgSi_2O_7∶Eu^(2+),Dy^(3+)和光转换剂结合在一起。对样品的表面形貌、激发发射光谱、余辉等性能进行表征,研究结果表明,光转换剂在SrMgSi_2O_7∶Eu^(2+),Dy^(3+)发光材料表面均匀分布,有利于光能的吸收。SrMgSi_2O_7∶Eu^(2+),Dy^(3+)/光转换剂对250~575nm之间的光均具有一定的吸收,且可有效激发SrMgSi_2O_7∶Eu^(2+),Dy^(3+)/光转换剂。光转换剂会对SrMgSi_2O_7∶Eu^(2+),Dy^(3+)的发光性能产生一定的影响,SrMgSi_2O_7∶Eu^(2+),Dy^(3+)/光转换剂的发射光谱分别在470nm和600nm处出现发射峰。随着光转换剂添加量的增加,SrMgSi_2O_7∶Eu^(2+),Dy^(3+)/光转换剂余辉亮度逐渐降低、余辉时间缩短。A new luminous material SrMgSi2O7 ： Eu2＋ , Dy3＋/light conversion agent that can emit red light in the darkness after being excited was fabricated by combining light conversion agent on to SrMgSi2O7 ： Eu2＋, Dy3＋ particles through YsiX3. The morphology of materials was analyzed by scan electron microscopy （SEM）. The excitation and emission behavior was evaluated by fluorescence spectrophotometric analysis and the afterglow properties were tested by PR-305 af- terglow tester. The results demonstrated that the light conversion agent was distributed on the surface of SrMgSi2O7 Eu2＋ , Dya＋ luminescent material evenly,which was conducived to the absorption of light energy. SrMgSi2O7 ：Eu2＋ , Dy3＋ / light conversion agent had the light absorption from 250 nm to 575nm. Therefore,light located at 250nm to 575nm can ef- fectively stimulate SrMgSi2O7 ： Eu2＋ , Dy3＋/light conversion agent. Light conversion agent had influence on the lumines- cence properties of SrMgSi2OT：Eu2＋ , Dy3＋ , the emission peak of SrMgSi2O7：EU2＋ , Dy3＋ and light conversion agents loca- ted at 470nm and 600nm respectively. The afterglow brightness and afterglow time reduced gradually as the amount of light conversion agent light conversion agent added.

关 键 词：SrMgSi2O7∶Eu2＋ Dy3＋ 光转换剂 发光性能 发射光谱 激发光谱 

分 类 号：TQ422[化学工程] TQ342.8