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Chinese Physics, 2004, Vol. 13(11): 1918-1921    DOI: 10.1088/1009-1963/13/11/027
CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES Prev   Next  

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 
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
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.
Keywords:  conducting polymers      microtubes      self-assembly      conductivity      polypyrrole  
Received:  13 February 2004      Revised:  08 April 2003      Accepted manuscript online: 
PACS:  72.80.Le (Polymers; organic compounds (including organic semiconductors))  
  61.46.-w (Structure of nanoscale materials)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10374107).

Cite this article: 

Long Yun-Ze (龙云泽), Xiao Hong-Mei (肖红梅), Chen Zhao-Jia (陈兆甲), Wan Mei-Xiang (万梅香), Jin Ai-Zi (金爱子), Gu Chang-Zhi (顾长志) Electrical conductivity of individual polypyrrole microtube 2004 Chinese Physics 13 1918

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