高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (5): 847.

• 研究论文 • 上一篇    下一篇

主链含电子传输型团的可溶性PPV聚合物载流子传输特性研究

杨晓晖1, 印寿根2, 王振家2, 侯延冰2, 徐叙容2   

  1. 1. 华南理工大学材料学院高分子材料及光电器件研究所, 广州 510641;
    2. 北方交通大学光电子研究所, 北京 100044
  • 收稿日期:1999-12-09 出版日期:2001-05-24 发布日期:2001-05-24
  • 通讯作者: 杨晓晖(1971年出生),男,博士,主要从事有机薄膜电致发光研究.Emai:inorganic@263.com E-mail:inorganic@263.com
  • 基金资助:

    国家自然科学基金(批准号:29992530)资助

Carrier Transport Characteristics of the Soluble PPV Polymer with Main Chain Containing Electron-Transporting Group

YANG Xiao-Hui1, YIN Shou-Gen2, WANG Zhen-Jia2, HOU Yan-Bing2, XU Xu-Rong2   

  1. 1. Department of Chemistry, Jilin University, Changchun 130023, China;
    2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100101, China
  • Received:1999-12-09 Online:2001-05-24 Published:2001-05-24

PDF (PC)

被引次数

11

摘要： 合成了一种聚苯撑乙烯撑(PPV)主链上含有电子传输基团的新型结构电子聚合物(O-PPV).该低聚物的Mw=1000,Tg=197℃,可溶于氯仿和四氢呋喃.单层O-PPV器件的发光效率约为单层PPV器件的5～8倍.进一步构造了结构为空穴传输特性材料/O-PPV和O-PPV/电子传输特性材料的双层器件来研究O-PPV的载流子传输特性,实验结果表明,O-PPV是一种具有明显两性载流子传输的特性材料.

关键词: 有机发光二极管, 聚对苯撑乙烯PPV, 电子传输层, 空穴传输层, 两性载流子传输的特性

Abstract: Akind of novel PPVderivative containing electron transporting group on the main chain(O-PPV), was synthesized according to the WITTIG-HORNER mechanism. This oligo polymer( Mw=1000, Tg=470 K) is soluble in chloroform and tetrahydrofuran. Single layer device ITO/O-PPV( 70 nm )/Al was fabricated, the electroluminescent(EL) spectra are essentially identical to photoluminescene(PL) spectrum. Compared with the quantum efficiency of the analogous single-layer device constructed with PPV(ITO/PPV/Al), the device ITO/O-PPV/Al is about five to eight times higher, which can be associated with the balanced carrier injection and transport owing to the attachment oxadiazole segment onto PPVmainchain. Two types of double layer devices were fabricated to study the carrier transport characteristic of OPPV. Our result showed O-PPVhas function both as electron transport layer and hole transport layer in double layer device, in other words OPPVhas obvious bipolar transport characteristic.

Key words: Organic light emitting diode, Poly( p-phenylenevinylene), Electron transport layer, Hole transport layer, Bipolar carrier transport characteristic

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