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化学学报
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化学学报 ›› 2008, Vol. 66 ›› Issue (11): 1361-1365. 上一篇    下一篇

研究论文

一种星型有机低聚物的合成及光电性能

向能军*,1,2，沈宏林1,3，许永1,3，高茜1,3，梁万里4，龚孟濂2   

  1. (1红塔(烟草)集团有限责任公司技术中心 玉溪 653100)
    (2中山大学化学与化学工程学院 光电材料与技术国家重点实验室 广州 510275)
    (3昆明理工大学化学工程学院 昆明 650224)
    (4香港浸会大学先进发光材料中心 香港)
  • 投稿日期:2007-11-03 修回日期:2008-01-03 发布日期:2008-06-14
  • 通讯作者: 向能军

Synthesis and Photo-electricity Properties of a Star-shaped Organic Oligomer

XIANG, Neng-Jun*,1,2; SHEN, Hong-Lin1,3; XU, Yong1,3; GAO, Qian1,3; LEUNG, Louis M.4; GONG, Meng-Lian2   

  1. (1 Research Branch of R&D Center of Hongta Tobacco (Group) Co., Ltd, Yunnan 653100)
    (2 State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275)
    (3 College of Chemical Engineering, Kunming University of Science and Technology, Kunming 650224)
    (4 Centre for Advanced Luminescence Materials, Hong Kong Baptist University, Hong Kong, China)
  • Received:2007-11-03 Revised:2008-01-03 Published:2008-06-14
  • Contact: XIANG, Neng-Jun

PDF

844

被引次数

5

通过多步反应合成了一种新型的具有“双极(bipolar)”性质和发光性能的以N原子为中心的星型有机小分子低聚物——三(4-(5-(4-(5-(4-(二苯胺基)苯基)-1,3,4-噁二唑-2)苯基)-1,3,4-噁二唑-2)苯基)胺. 用1H NMR, MS和元素分析进行了表征, 研究了化合物的热稳定性和固体粉末的光致发光性质, 并用循环伏安法测定了其电化学性能. 结果表明, 这种合成的同时具备空穴传导和电子输入双重功能基团的星型有机小分子光致发光性能优良(量子效率92%), 热稳定性好, 可以作为制作有机电致发光器件的候选材料.

关键词: 有机小分子, 低聚物, 空穴传导, 电子传导, 发光

A star-shaped organic oligomer, tris(4-(5-(4-(5-(4-(diphenylamino)phenyl)-1,3,4-oxadia- zol-2-yl)phenyl)-1,3,4-oxadiazol-2-yl)phenyl)amine, TDPAPOPOPA, based on a N core, containing a hole-transporting arylamine and an electron-transporting 1,3,4-oxadiazole units has been synthesized using a facile multi-step procedure. The star-shaped organic oligomer emits green light with high fluorescence quantum yields (0.92), indicating that the star-shaped organic oligomer is a highly efficient light-emitting material. Reversible anodic oxidation results suggested that the star-shaped organic oligomer should be predominantly hole-transporting. All the results indicate that the synthesized star-shaped organic oligomer is potentially good candidated as bipolar (hole-transporting/electron-transporting) and emitting material for fabrication of organic light-emitting diodes.

Key words: small molecule, oligomer, hole-transporting, electron-transporting, luminescence