华东师范大学学报(自然科学版) ›› 2009, Vol. 2009 ›› Issue (4): 124-130.

• 应用物理 电子学 • 上一篇    下一篇

溴蒸气掺杂聚苯乙炔的导电性能

梁旦,韩菲菲,王红敏,唐国强,叶葏,吴玲娟,徐学诚
  

  1. 华东师范大学 物理系 纳米功能材料与器件研究中心,上海200062
  • 收稿日期:2008-06-12 修回日期:2008-10-08 出版日期:2009-07-25 发布日期:2009-07-25
  • 通讯作者: 徐学诚

Electrical conductivity of polyphenylacetylene doped by bromine vapor

LIANG Dan,HAN Feifei,WANG Hongmin,TANG Guoqiang
YE Jing,WU Lingjuan, XU Xuecheng

  

  1. Center of Functional Nanomaterials and Devices, Department of Physics,East China Normal University, Shanghai 200062, China
  • Received:2008-06-12 Revised:2008-10-08 Online:2009-07-25 Published:2009-07-25
  • Contact: XU Xuecheng

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摘要： 通过溴蒸气的吸附，聚苯乙炔(PPA)的电导率比吸溴前提高近12个数量级.将溴掺杂的粉末样品压片成型后发现其电导率随时间的增加而提高.固体紫外光谱、红外光谱和X光电子能谱表明溴与PPA之间存在较强的共轭作用，形成了电子转移复合物；溴掺杂有利于增大PPA的共轭程度，提高PPA的电导率；压力作用有助于增强溴对PPA的掺杂效应.

关键词: 溴, 聚苯乙炔, 掺杂, 共轭, 电子转移复合物, 压力, 溴, 聚苯乙炔, 掺杂, 共轭, 电子转移复合物, 压力

Abstract: Through absorption of bromine vapor, the electrical conductivity of Polyphenylacetylene (PPA) enhanced by 1012 times. After pressing the bromine doped powder sample into pellet, we found that the conductivity of the samples increased with time. UVVis spectra, IR, and XPS spectra indicated that strong conjugation effect exists between PPA and bromine, and Charge Transfer Complex (CTC) is formed in PPA after doping; bromine doping increases the conjugation of PPA and improves its conductivity; the pressure can promote the doping effect of bromine on PPA.

Key words: polyphenelacetylene, doping, conjugation, charge transfer complex, pressure , bromine, polyphenelacetylene, doping, conjugation, charge transfer complex, pressure

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