中国物理B ›› 2004, Vol. 13 ›› Issue (11): 1918-1921.doi: 10.1088/1009-1963/13/11/027

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Electrical conductivity of individual polypyrrole microtube

龙云泽1, 陈兆甲1, 金爱子2, 顾长志2, 万梅香3, 肖红梅4   

  1. (1)Key Laboratory of Extreme Conditions Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; (2)Laboratory of Microfabrication, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; (3)Laboratory of Organic Solids, Centre for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China; (4)Laboratory of Organic Solids, Centre for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China; School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
  • 收稿日期:2004-02-13 修回日期:2003-04-08 出版日期:2004-11-20 发布日期:2005-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10374107).

Electrical conductivity of individual polypyrrole microtube

Long Yun-Ze (龙云泽)a,  Xiao Hong-Mei (肖红梅)bc, Chen Zhao-Jia (陈兆甲)a, Wan Mei-Xiang (万梅香)b, Jin Ai-Zi (金爱子)d, Gu Chang-Zhi (顾长志)d    

  1. a Key Laboratory of Extreme Conditions Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; b Laboratory of Organic Solids, Centre for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China; c School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China; d Laboratory of Microfabrication, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2004-02-13 Revised:2003-04-08 Online:2004-11-20 Published:2005-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10374107).

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摘要： Conducting microtubes (0.4－0.5μm in outer diameter) made of polypyrrole (PPy) doped with p-toluene sulfonic acid (PTSA) were synthesized by a self-assembly method. We report the electrical conductivity of an individual PPy microtube, on which a pair of platinum micro-leads was fabricated by focused ion beam deposition. The measured room-temperature conductivity of the individual PPy microtube was 0.29S/cm, which is comparable to that of template-synthesized PPy micro/nanotubes. The temperature dependence of conductivity of the individual microtube follows the three-dimensional variable-range hopping (3D VRH) model.

关键词: conducting polymers, microtubes, self-assembly, conductivity, polypyrrole

Abstract: Conducting microtubes (0.4－0.5μm in outer diameter) made of polypyrrole (PPy) doped with p-toluene sulfonic acid (PTSA) were synthesized by a self-assembly method. We report the electrical conductivity of an individual PPy microtube, on which a pair of platinum micro-leads was fabricated by focused ion beam deposition. The measured room-temperature conductivity of the individual PPy microtube was 0.29S/cm, which is comparable to that of template-synthesized PPy micro/nanotubes. The temperature dependence of conductivity of the individual microtube follows the three-dimensional variable-range hopping (3D VRH) model.

Key words: conducting polymers, microtubes, self-assembly, conductivity, polypyrrole

中图分类号:  (Polymers; organic compounds (including organic semiconductors))

  • 72.80.Le
61.46.-w (Structure of nanoscale materials)