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Journal of Nanoscience Letters 2012, 2: 2
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Research Article
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Investigation of electrical transport in regioregular poly(3-hexylthiophene) nanowires fabricated by template wetting method
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Na Li, Yanping Wang, Yao Qu, Mingdong Yi, Zhaohui Su, Dongge Ma
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State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, and Graduate School of Chinese Academy of Sciences ,Chinese Academy of Sciences, Changchun 130022, P.R.China
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Abstract |
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Regioregular poly(3-hexylthiophene) nanowires were produced by wetting porous anodized aluminum oxide membranes with the polymer melt. The diameter of the nanowires was about 200 nm, and the length of the nanowires could be controlled by the time period that the polymer melt was in contact with the template. The structure of the nanowires was investigated by X-ray diffraction, and it was found that the polymer chains were perpendicular to the nanowire direction with the a-axis of the crystals lying parallel to the long axis of the nanowire. The electrical properties of a single nanowire were measured using a conductive scanning probe microscope, and the nanowire morphology was recorded at the same time. It was shown that the conductivity of the nanowires can be controlled in a predictable manner over the range from insulator to metal by doping.
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Keywords |
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Poly(3-hexylthiophene); Nanowire; Conductivity; Doping
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