A complementary electrochromic device based on polyaniline and poly(3,4-ethylenedioxythiophene)
Resource
Solar Energy Materials & Solar Cells 90 (2006) 506–520
Journal
Solar Energy Materials & Solar Cells
Journal Volume
90
Journal Issue
2006
Pages
-
Date Issued
2006
Date
2006
Author(s)
Lina, Tzung-Hua
Hoa, Kuo-Chuan
DOI
246246/2006111501254420
Abstract
In this study, two conducting polymers, polyaniline (PANI) and poly(3,4-ethylenedioxythiophene)
(PEDOT), were used to construct an electrochromic device (ECD). PANI was employed
as the anodic coloring polymer while PEDOT was used as the cathodic coloring polymer. The
electrochemical and optical properties of PANI, which has a coloration efficiency of 25 cm2/C
at 570 nm, were coupled with the complementary coloring material, PEDOT, which has a
coloration efficiency of 206 cm2/C at 570 nm. A suitable operating potential window was switched
between 0.6 and 1.0V to explore the cycle life of the ECD.We tested the PANI–PEDOT ECD,
which consisted of PANI, PEDOT, and an organic electrolyte containing 0.1M LiClO4 in
propylene carbonate and 1mM HClO4. The transmittance of the ECD at 570nm changed from
58% (0.6V) to 14% (1.0 V) with a coloration efficiency of 285 cm2/C. Within the selected
operating voltage range, the PANI–PEDOT ECD could be cycled for up to 2 104 cycles.
r 2005 Elsevier B.V. All rights reserved.
Subjects
Coloration efficiency
Electrochromic device
Polyaniline
Poly(3,4-ethylenedioxythiophene)
Cycling stability
Publisher
Taipei:National Taiwan University Coll Elect Engn
Type
journal article
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