高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

烷基芴与三苯胺取代-3,6-芴共聚物的合成及其性能

吴忠联, 王磊, 刘金成, 应磊, 杨伟, 曹镛   

  1. 华南理工大学高分子光电材料与器件研究所, 教育部特种功能材料重点实验室, 广州 510640
  • 收稿日期:2007-12-06 修回日期:1900-01-01 出版日期:2008-04-10 发布日期:2008-04-10
  • 通讯作者: 曹镛

Synthesis and Properties of Copolymers Based on Dialkylfluorene and 3,6-Fluorene Substituted by Triphenylamine Units

WU Zhong-Lian, WANG Lei, LIU Jin-Cheng, YING Lei, YANG Wei, CAO Yong*   

  1. Institute of Polymer Optoelectronic Materials and Devices, Key Laboratory of Specical Functional Materials of Ministry of Education, South China University of Technology, Guangzhou 510640, China
  • Received:2007-12-06 Revised:1900-01-01 Online:2008-04-10 Published:2008-04-10
  • Contact: CAO Yong

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被引次数

7

摘要： 用Suzuki偶联反应制备了一系列新型的9,9-二辛基-2,7-芴(DOF)与9,9-二(4-二苯胺基苯基)-3,6-芴(36FT)的共聚物. 所有的聚合物均可溶于常见的有机溶剂(如THF, CHCl3和甲苯等), 分子量在47000~189000之间. 电化学研究结果表明, 所有聚合物的HOMO能级都高于均聚烷基芴, 并且随着36FT含量的增加, HOMO值逐渐上升. 以该类聚合物为发光层制作了结构为ITO/PEDOT/PVK/polymer/Ba/Al的器件, 获得了稳定的蓝光发射, 其中以36PFT10为发光层的器件获得了0.52%的最大外量子效率.

关键词: 电致发光, 聚芴衍生物, 聚合物电致发光二极管

Abstract: A series of conjugated copolymers derived from 9,9-dioctyl-2,7-fluorene(DOF) and 9,9-bis(4-diphenylaminophenyl)-3,6-fluorene(36FT) were prepared by Suzuki coupling polymerization, which have a high molecular weights(Mn=47000—189000). The resulting copolymers are readily soluble in common organic solvents such as THF, CHCl3 and toluene etc.. The electrochemical, optical and electroluminescent properties were investigated. Cyclic voltammogram(CV) indicates that the HOMO level of the copolymers is higher than that of the PF homopolymer, and it increases with the increase in 36FT mass fraction from 2% to 35%. The blue polymer light-emitting diodes(PLEDs) with the device configuration of ITO/PEDOT/PVK/polymer/Ba/Al were prepared. The highest external quantum efficiency was 0.52% from the device with 36PFT10 as the active layer.

Key words: Electroluminescence, Poly(fluorene) derivatives, Polymer light-emitting diodes(PLEDs)

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