组合方法筛选新型发光材料  

Combinatorial Approach to Advanced Luminescent Materials

作　　者：高琛[1,2] 鲍骏[1,2] 黄孙祥[1,2] 刘小楠[1,2] 陈雷[1,2] 丁建军[1,2] 唐云[1,2] 

机构地区：[1]中国科学技术大学国家同步辐射实验室,安徽合肥230029 [2]中国科学技术大学合肥微尺度物质科学国家实验室,安徽合肥230026

出　　处：《发光学报》2006年第3期285-290,i0001-i0002,共8页Chinese Journal of Luminescence

基　　金：国家自然科学基金(50125207;20131010;50421201);中国科学院创新方向性项目(KGCX2-201-2);安徽省教育厅自然科学基金(2001kj266zd);国家同步辐射实验室知识创新工程基金资助项目

摘　　要：结合作者课题组开展的工作,简要介绍了组合方法在发光材料研究中的应用。包括:适用于发光材料库合成的组合溶液喷射和原位掩模薄膜顺序沉积技术;应用于发光材料库高通量筛选的照相术、组合扫描光谱和组合真空紫外发光表征系统。列举了组合方法在稀土聚合物敏化发光材料、真空紫外发光材料和长余辉发光材料等研究中的应用。The progresses of our group in combinatorial luminescent materials are reviewed. A combinatorial inkjet delivery system was developed to synthesize the powder phosphors libraries. The system consists of eight independent piezoelectric inkjet heads and an x-y stage that controlled by a computer via the driving circuit and motion controller. Thin-film deposition conjunction with a combinatorial masking strategy is used to synthesize high-density thin-film phosphors libraries. Photography using either film cameras or digital charge-coupled devices can be used to characterize the luminescent intensities and color coordinate of a phosphors library by taking the photoluminescent photograph of the library under UV or other high-energy excitations. For more quantitative analysis, an automatic scanning spectrometer system is used to measure the emission spectra of luminescent samples in the library. This system consists of a mercury lamp, a portable optical fiber spectrometer and an x-y stage. To implement the high throughput screening of VUV phosphor library, a parallel screening apparatus for VUV photoluminescence was developed, which consists of a cathode gas （ Xe/He or Xe/Ne） discharge lamp and a vacuum characterization chamber. The photoluminescence of the phosphors library that excited by the VUV emission are photographed outside the chamber through an optical window. The luminescence enhancement effect of different kinds and contents of rare earth complexes （RE（DBM）3phen, RE = Dy, La, Gd, Sm, Y, DBM = dibenzoylmethane, phen = 1,10-phenanthroline） sensitized Eu（ DBM）3phen doped in poly（ methyl methacrylate） （PMMA） matrix was investigated using combinatorial method. The La（DBM）3phen shows the highest sensitization efficiency. At the 6ptimal content of 5% （ mass fraction） Eu （DBM） 3 phen and 350 kg/mol number average molecular weight （Mn） of PMMA, the maximum sensitization efficiency of La（ DBM）3phen is about 20 times. Through the combinatorial method, a efficient VUV red

关 键 词：组合方法 新型发光材料 

分 类 号：O482.31[理学—固体物理]