Since the first preparation of the highly conducting polyacetylene (PA) in 1977, much effort has been devoted to the synthesis of other organic conducting polymers such as polyaniline (PANI), polypyrrole (PPy) and polythiophene (PTh) and their applications in devices combining optical, electrochemical and conducting properties. Among these innovative materials, PPy is appealing because of its tuneable conductivity and stability in air [1] that allow applications in electronic displays, [2] electrode materials, [3] molecular electronic circuit elements, [4] restoration of data, [5] indicators of gasometers [6] and biochemical analysis [7].
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