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. ISSN 1463-9076

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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
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Divisions:	Faculty of Science > Chemistry
Journal or Publication Title:	Physical Chemistry Chemical Physics
Publisher:	Royal Society of Chemistry
ISSN:	1463-9076
Date:	2009
Volume:	Vol.11
Number:	No.18
Number of Pages:	7
Page Range:	pp. 3490-3496
Identification Number:	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
URI:	http://wrap.warwick.ac.uk/id/eprint/28086

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