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

聚-3,4-乙烯二氧噻吩导电聚合物纳米粒子的制备及性能

杨亚杰, 蒋亚东, 徐建华, 应智花   

  1. 电子科技大学光电信息学院,电子薄膜与集成器件国家重点实验室, 成都 610054
  • 收稿日期:2006-12-19 修回日期:1900-01-01 出版日期:2007-09-10 发布日期:2007-09-10
  • 通讯作者: 蒋亚东

Preparation and Properties of Conducting Polymer Poly(3,4-ethylenedioxythiophene) Nanoparticles

YANG Ya-Jie, JIANG Ya-Dong*, XU Jian-Hua, YING Zhi-Hua   

  1. State Key Laboratory of Electronic Thin Films & Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China , Chengdu 610054, China
  • Received:2006-12-19 Revised:1900-01-01 Online:2007-09-10 Published:2007-09-10
  • Contact: JIANG Ya-Dong

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被引次数

14

摘要： 采用反向胶束合成法, 以二乙基磺基琥珀酸钠(AOT)形成的反胶束为模板制备了导电聚合物聚-3,4-乙烯二氧噻吩(PEDOT)纳米粒子. 用紫外-可见-近红外光谱、红外光谱、X射线光电子能谱、扫描电子显微镜及透射电镜等手段对PEDOT粒子进行了表征. 研究了纳米粒子的导电性能并采用石英微天平(QCM)对纳米粒子的气敏特性进行了分析, 对相应导电机理及气体敏感机理进行了讨论.

关键词: 反胶束, 聚-3,4-乙烯二氧噻吩, 导电聚合物, 纳米粒子, 气敏性能

Abstract: Poly(3,4-ethylene dioxythiophene)(PEDOT) nanoparticles was prepared by reverse micelles technique. The nanoparticles were characterized by UV-Vis-near IR(UV-Vis-NIR) adsorption spectrum, IR spectrum, X-ray photoelectron(XPS), scanning electron microscopy(SEM) and transmission electron microscopy(TEM). The results confirmed that size distribution of this particle was 30—40 nm and the nanoparticles has been doped by Cl- during synthesis process. The conductivity of nanoparticles was investigated by four-probe and it has been found that this nanopartices showed higher conductivity(10.2 S/cm)than conventional one. Furthermore, the gas sensitivity of nanoparticles deposited on quartz crystal microbalance(QCM) was studied and the nanopartices deposited device exhibited excellent sensitivity to NH3 gas at low concentration. The mechanism of conductivity and gas sensitivity of the nanoparticles are also included in this paper.

Key words: Reverse micelle, PEDOT, Conducting polymer, Nanoparticle, Gas sensitivity

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