高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (3): 602.

• 研究论文 • 上一篇    下一篇

新型超支化聚(芴-co-吡啶并[3,2-b]吡嗪)共聚物的合成与发光性能

周鹏, 王晶禹, 李小东   

  1. 中北大学化工与环境学院, 太原 030051
  • 收稿日期:2009-06-02 出版日期:2010-03-10 发布日期:2010-03-10
  • 通讯作者: 周鹏, 男, 讲师, 主要从事功能高分子材料研究. E-mail: zhoupengcm@163.com

Synthesis and Electroluminescent Properties of Novel Hyperbranched Poly(fluorene-co-pyrido[3,2-b]pyrazine)s

ZHOU Peng*, WANG Jing-Yu, LI Xiao-Dong   

  1. College of Chemical Engineering and Environment, North University of China, Taiyuan 030051, China
  • Received:2009-06-02 Online:2010-03-10 Published:2010-03-10
  • Contact: ZHOU Peng. E-mail: zhoupengcm@163.com

摘要:

合成了新型三溴代的含有吡啶并[3,2-b]吡嗪的化合物, 通过Suzuki缩聚反应合成了以吡啶并[3,2-b]吡嗪为核, 以9,9-二辛基芴为枝的超支化共聚物. 该共聚物在甲苯和四氢呋喃等有机溶剂中具有较好的溶解性能. 采用共聚物制备了结构为ITO/PEDOT/polymer/Ca/Al的发光器件, 其中基于共聚物PFPQ-2的器件在电流密度为3.8 mA/cm2时得到蓝光发射, 最大外量子效率为1.29%, 最大亮度为1173 cd/m2, 色坐标为(0.16, 0.11).

关键词: 超支化; 蓝光发射; 聚合物发光二极管

Abstract:

Several novel hyperbranched conjugated polymers with pyrido[3,2-b]pyrazine as core and 9,9-dioctylfluorene as branches were synthesized based on a novel tribrominated pyrido[3,2-b]pyrazine. The hyperbranched polymers exhibit good solubility in common organic solvents such as toluene and tetrahydrofuran. The polymer light-emitting devices with architecture of ITO/PEDOT/polymer/Ca/Al were fabricated by utilizing the prepared copolymers as emissive layer. The device with PFPQ-2 as active layer exhibited very efficient blue electroluminescence with the maximal external quantum efficiency of 1.29% and maximal brightness of 1173 cd/m2, with CIE coordinates of (0.16, 0.11).

Key words: Hyperbranched copolymer; Blue emission; Polymer light emitting diode

TrendMD: