Y_2SiO_5:Ce^(3+)/PMMA稀土发光复合材料的制备及其荧光性能的研究  

Preparation and Luminescent Properties of Y_2SiO_5: Ce^(3+)/PMMA Composites

作　　者：王洁琼[1] 杨森[1] 曹子君[1] 郑阿群[1] 孙占波[1] 宋晓平[1] 

机构地区：[1]西安交通大学物质非平衡与调控教育部重点实验室,陕西西安710049

出　　处：《稀有金属材料与工程》2013年第9期1961-1964,共4页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51071117);西安市科技计划(CXY1015)

摘　　要：采用原位聚合法,将蓝色荧光粉(Y2SiO5:Ce3+)和聚甲基丙烯酸甲酯(PMMA)复合,制备出透明且具有蓝色荧光性能的Y2SiO5:Ce3+/PMMA稀土发光复合材料。利用X射线衍射仪(XRD)和傅里叶红外吸收光谱仪(FT-IR)对样品进行结构分析;用扫描电镜(SEM)对样品进行微观形貌观察;用荧光光谱测试仪和紫外-近红外分光光度计对样品的荧光性能和透射光谱进行分析。结果表明:具有X2型单斜晶体结构的Y2SiO5:Ce3+蓝色荧光粉在PMMA中分布均匀,其粒度为0.7～2.0 m。在波长为365 nm紫外光激发下,Y2SiO5:Ce3+/PMMA复合材料能够发射出蓝色荧光,且0.1mol%Y2SiO5:Ce3+含量的PMMA基复合材料的蓝色荧光透光率高达75%。这表明所制备的Y2SiO5:Ce3+/PMMA复合材料具有良好的蓝色荧光性能,可用于透明固体发光器件的研制。The Y2SiO5-Ce3＋/PMMA composites were prepared by in-situ polymerization with blue photoluminescent powderY2SiO5-Ce3＋and poly methyl methacrylate （PMMA） as starting materials. The obtained samples were characterized by XRD, FT-IR, SEM, etc. Results show that the Y2SiOs：Ce3＋ luminescent powder with particle size of 0.7-2.0 μm has the X2-monoclinic crystal structure and is homogeneously distributed in the PMMA. Excited by the ultraviolet light with the wavelength of 365 nm, the Y2SiO5-Ce3＋/PMMA composites exhibit the blue photoluminescence and the transparency of blue photoluminescence achieves a high value of 75%. Consequently, the obtained Y2SiO5-Ce3＋/PMMA composites can be used to fabricate the transparent luminescent apparatus.

关 键 词：聚甲基丙烯酸甲酯（PMMA） Y2SiO5-Ce3＋ PMMA复合材料 原位聚合法 蓝色荧光粉 透光率 

分 类 号：TB33[一般工业技术—材料科学与工程] TN104.3[电子电信—物理电子学]