中华医学超声杂志

应用化学 ›› 2010, Vol. 27 ›› Issue (03): 262-266.DOI: 10.3724/SP.J.1095.2010.90236

• 研究论文 • 上一篇    下一篇

铱配合物为核、聚对苯为枝的超支化电磷光聚合物的合成与发光性能

袁攀,胡苏军,应磊,杨伟*   

  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:2009-03-31 修回日期:2009-08-20 出版日期:2010-03-10 发布日期:2010-03-10
  • 通讯作者: 杨伟,男,教授; E-mail:pswyang@scut.edu.cn; 研究方向：光电高分子材料
  • 作者简介:
  • 基金资助:
    国家自然科学基金项目(20574021,U0634003)和国家“九七三”计划（2009CB623600）资助项目

Synthesis and Electrophosphorescent Properties of Hyperbranched Polymers with Iridium Complex as Core and Poly (para-phenylene) as Branch

YUAN Pan, HU Su-Jun, YING Lei, YANG Wei*   

  1. (Institute of Polymer Optoelectronic Materials and Devices,Key Laboratory of Special Functional
    Materials of Ministry of Education,South China University of Technology,Guangzhou 510640)
  • Received:2009-03-31 Revised:2009-08-20 Published:2010-03-10 Online:2010-03-10
  • About author:

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摘要：

用Suzuki缩聚反应合成了以三-(2-间溴苯基吡啶)合铱为核,以聚2,5-二辛氧基苯为枝的超支化电磷光绿光聚合物（PPPIrppy）。 聚合物中当铱配合物摩尔分数大于0.5%时,主体的发射被完全淬灭，电致发光（EL）光谱只有位于520 nm处的绿光发射,表明主客体之间发生了有效的能量转移。 基于铱配合物摩尔分数为1％的聚合物的发光器件(器件结构：ITO/PEDOT:PSS/emissive layer/Ba/Al)在电流密度为40×10-3 A/cm2时,最大电流效率达到2.89 cd/A,器件的最大亮度达到1 689 cd/m2,色坐标为（0.34,0.59）。

关键词: 铱配合物，超支化聚对苯，绿光发射

Abstract:

Novel hyperbranched poly(para-phenylene)s were synthesized by Suzuki polycondensation with Ir complex as core and poly(p-phenylene) as branch. The emission from the host was completely quenched when the content of Ir complex in the polymer was more than 0.5%, leading the EL spectra of the polymers to show only one main emission at 520 nm, which indicated that there was an efficient energy transfer between the host and the guest. The device based on the copolymer with 1% molar fraction of Ir complex in the polymer had a peak luminous efficiency(LE) of 2.89 cd/A, and the maximal luminance of 1 689 cd/m2 with the configuration of ITO/PEDOT/emissive layer/Ba/Al.

Key words: Ir complex,hyperbranched poly(p-phenylene),green emission

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