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Polyaniline Langmuir-Blodgett films: formation and properties
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Zhang, Jie, Burt, David P., Whitworth, Anna L., Mandler, Daniel and Unwin, Patrick R. (2009) Polyaniline Langmuir-Blodgett films: formation and properties. Physical Chemistry Chemical Physics, Vol.11 (No.18). pp. 3490-3496. doi:10.1039/b819809h ISSN 1463-9076.
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Official URL: http://dx.doi.org/10.1039/b819809h
Abstract
The deposition and characterisation of Langmuir-Blodgett (LB) layers of polyaniline (PAN) on solid supports is described. Langmuir films were spread as a mixture of PAN and dodecylbenzenesulfonic acid (DBSA) at the water/air interface and deposited on either glass or indium tin oxide (ITO). Mono- and multi-layer films of PAN/DBSA were characterized by X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), absorption spectroscopy and cyclic voltammetry (CV). The ultrathin films produced were found to be highly uniform and very stable. Further characterisation of the films was accomplished by scanning electrochemical microscopy (SECM) in the feedback mode. It was found that the conductivity depended strongly on the pH of the solution and the number of layers deposited. Values for the pH-dependent lateral conductivity of PAN LB films are reported.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Physical Chemistry Chemical Physics | ||||
Publisher: | Royal Society of Chemistry | ||||
ISSN: | 1463-9076 | ||||
Official Date: | 2009 | ||||
Dates: |
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Volume: | Vol.11 | ||||
Number: | No.18 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 3490-3496 | ||||
DOI: | 10.1039/b819809h | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Royal Society (Great Britain), Engineering and Physical Sciences Research Council (EPSRC), Avecia |
Data sourced from Thomson Reuters' Web of Knowledge
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