Abstract
Conducting polymers, in both their solid or liquid states, have been
successfully employed within a novel flexible 4-layer electrochromic prototype
device. The device consists of the polymer combined with a flexible PET textile
spacer, sandwiched between two electrodes—one of which is applied on
a flexible textile substrate. The electrochromic materials that have been
employed are polyaniline and substituted polythiophene polymers. Two methods
of preparation have been used. Aniline was chemically polymerized to the surface
of the PET textile substrate, in its solid state, prior to application within
the device. Conversely, substituted thiophene monomers, in the solution phase,
were suspended within the textile spacer and electrochemically polymerized in situ within the device. The application
of an electrical voltage (
${\pm}{{3}}$
V) effects a reversible color change for both solid and liquid
phase systems, providing a flexible communicative textile with applications
for protection and safety purposes, or for added fashion. This paper outlines
the preparation and characterization of each of the solid and liquid electrochromic
display systems and discusses the benefits and drawbacks of each.
© 2013 IEEE
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