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Durham University

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Publication details for Professor Andy Monkman

GOLDENBERG, LM, PETTY, MC & MONKMAN, AP (1994). A COMPARATIVE-STUDY OF THE ELECTROCHEMICAL PROPERTIES OF DIP-COATED, SPUN, AND LANGMUIR-BLODGETT-FILMS OF POLYANILINE. Journal Of The Electrochemical Society 141(6): 1573-1576.
  • Publication type: Journal Article
  • ISSN/ISBN: 0013-4651

Author(s) from Durham

Abstract

The electrochemistry of polyaniline (PANi), which has been chemically
synthesized and processed in a variety of ways into thin films, has
been studied, and a comparison to those properties observed in thin
electrochemically grown PANi films made. In this work, PANi via
solution processing has been formed into thin films using dip coating,
spin coating, and the Langmuir-Blodgett (LB) technique on indium tin
oxide electrodes to facilitate both cyclic voltammetry and
spectroelectrochemical analysis. We find that the LB technique yields
films which display the most defined voltammetric properties, although
in all cases electroactivity is observed. Effects due to the residual
solvent contained in the films are seen. This has enabled us to comment
on the role played by the solvent molecules within the PANi matrix.
Further, in the case of LP-PANi, the ultrathin films, ca. 60 angstrom
thick, as well as exhibiting excellent electrochemistry are found to be
deposited in the fully oxidized, pernigraniline form of PANi, as
confirmed by rest potential measurements, UV/visible and
Fourier-transform infrared spectroscopy. From our results it is quite
feasible to suggest that large scale electrochromic displays could be
fabricated using PANi as the active material.