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Polypyrrole Nanowire Array with High Aspect Ratio Fabricated by Block-Copolymer-Templated Electropolymerization

Published online by Cambridge University Press:  14 March 2011

Hideaki Komiyama ,
Tomokazu Iyoda  and
Kaori Kamata
Hideaki Komiyama
Affiliation:
Division of Integrated Molecular Engineering, Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
Tomokazu Iyoda
Affiliation:
Division of Integrated Molecular Engineering, Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
Kaori Kamata
Affiliation:
Division of Integrated Molecular Engineering, Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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Abstract

Conducting polypyrrole (PPy) nanowire array was electrochemically fabricated by using microphase-separated block copolymer (PEOm-b-PMA(Az)n) thin film as an electrode template. Electropolymerization proceeds selectively through the perpendiculary oriented PEO nanocylindrical microdomains on an ITO electrode coated by the above polymer film. The length of the PPy nanowires was controllable in range of 10-120 nm by the thickness of the coated template film and the amount of passed charge. A 10 nm of diameter, 27 nm of periodicity, and 12 of aspect ratio of the crystalline PPy nanowires were successfully achieved. Selective removal of the template is also achieved simply by rinsing with solubility-controlled mixed solvent.

Keywords

nanostructureelectrodepositionself-assembly
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1312: Symposium HH/II/JJ – Polymer-Based Materials and Composites—Synthesis, Assembly and Applications , 2011 , mrsf10-1312-jj03-02
Copyright
Copyright © Materials Research Society 2011

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References

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