高等学校化学学报 ›› 2012, Vol. 33 ›› Issue (09): 2056.doi: 10.3969/j.issn.0251-0790.2012.09.032

• 物理化学 • 上一篇    下一篇

酚基嘧啶铍(Ⅱ)配合物的合成及光电性质

李鹏1,2, 张恒军3, 朱东霞2, 单国刚2, 廖奕1, 苏忠民2   

  1. 1. 首都师范大学化学系, 北京 100048;
    2. 东北师范大学化学学院, 功能材料化学研究所, 长春 130024;
    3. 国家知识产权局专利局专利审查协作北京中心, 北京 100190
  • 收稿日期:2011-12-08 出版日期:2012-09-10 发布日期:2012-08-14
  • 通讯作者: 廖奕,女,博士,教授,博士生导师,主要从事量子化学和功能材料化学研究.E-mail:liaoy271@nenu.edu.cn苏忠民,男,博士,教授,博士生导师,主要从事量子化学和功能材料化学研究.E-mail:zmsu@nenu.edu.cn E-mail:liaoy271@nenu.edu.cn; zmsu@nenu.edu.cn
  • 基金资助:

    国家"九七三"计划项目(批准号: 2009CB623605)和国家自然科学基金(批准号: 20703008)资助.

Synthesis and Photo-electricity Properties of Hydroxyphenyl-pyrimidine Beryllium(Ⅱ) Complex

LI Peng1,2, ZHANG Heng-Jun3, ZHU Dong-Xia2, SHAN Guo-Gang2, LIAO Yi1, SU Zhong-Min2   

  1. 1. Department of Chemistry, Capital Normal University, Beijing 100048, China;
    2. Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China;
    3. Patent Examination Collaborating Center of State Intellectual Property Office, Beijing 100190, China
  • Received:2011-12-08 Online:2012-09-10 Published:2012-08-14

摘要:

采用Suzuki偶联方法合成了新型有机螯合配体酚基嘧啶(HPP), 利用HPP进一步合成了酚基嘧啶铍配合物Be(PP)2. 采用核磁共振(1H NMR)和红外(IR)光谱等方法对其结构进行了表征, 并通过测定紫外-可见(UV-Vis)和光致发光(PL)光谱对Be(PP)2的光学性质进行了研究. 结果表明, 配合物在460 nm处有最大发射. 以Be(PP)2为电子传输层和发光层制备了结构为氧化铟锡(ITO)/N,N'-二(萘-2-基)-N,N'-二(苯基)联苯-4,4'-二胺(NPB)(45 nm)/Be(PP)2(60 nm)/Al(300 nm)的双层模型器件, 获得了最大亮度为103 cd/m2的近白光发射, 色坐标为(0.37, 0.39), 光功率效率为0.13 lm/W.

关键词: 酚基嘧啶铍, 有机发光材料, 白光电致发光器件

Abstract:

A novel chelating ligand 2-hydroxyphenyl-pyrimidine (HPP) was designed and synthesized through Suzuki coupling reaction. Its beryllium complex bisberyllium was also prepared in high yields and characterized by IR and 1H NMR. Upon photoexcitation, the complex displayed intense blue emission (λmax=460 nm) in methanol solvent at room temperature. In addition, a white organic electroluminescent device was fabricated by vacuum thermal evaporation with a double-layer structure of indium tin oxides(ITO)/N,N'-bis(naphthalene-2-yl)-N,N'-diphenyl--4,4'-diamine (NPB)(45 nm)/Be(PP)2(60 nm)/Al(300 nm) using the Be(PP)2 as emitting and electro-transporting material. The non-doping device showed a lower turn-on voltage of 4 V, a maximum brightness of 103 cd/m2, a commission internationale de I'Eclairage (CIE) color coordinates of (0.37, 0.39) and luminous efficiency of 0.13 lm/W.

Key words: Hydroxyphenyl-pyrimidine beryllium, Organic luminescent material, White organic electroluminescent device

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