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Controlling the ele...
Controlling the electrochromic properties of conductive polymers using UV-light
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- Brooke, Robert (author)
- Linköpings universitet,Institutionen för teknik och naturvetenskap,Tekniska fakulteten
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- Edberg, Jesper (author)
- Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten
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- Iandolo, Donata (author)
- Linköpings universitet,Institutionen för teknik och naturvetenskap,Tekniska fakulteten,Ecole Natl Super Mines, France
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- Berggren, Magnus (author)
- Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten
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- Crispin, Xavier (author)
- Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten
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- Engquist, Isak (author)
- Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten
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(creator_code:org_t)
- 2018
- 2018
- English.
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In: Journal of Materials Chemistry C. - : ROYAL SOC CHEMISTRY. - 2050-7526 .- 2050-7534. ; 6:17, s. 4663-4670
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Abstract
Subject headings
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- The phenomenon of electrochromism in conductive polymers is well known and has been exploited in many scientific reports. Using a newly developed patterning technique for conductive polymers, we manufactured high-resolution electrochromic devices from the complementary polymers PEDOT and polypyrrole. The technique, which combines UV-light exposure with vapor phase polymerization, has previously only been demonstrated with the conductive polymer PEDOT. We further demonstrated how the same technique can be used to control the optical properties and the electrochromic contrast in these polymers. Oxidant exposure to UV-light prior to vapor phase polymerization showed a reduction in polymer electrochromic contrast allowing high-resolution (100 mu m) patterns to completely disappear while applying a voltage bias due to their optical similarity in one redox state and dissimilarity in the other. This unique electrochromic property enabled us to construct devices displaying images that appear and disappear with the change in applied voltage. Finally, a modification of the electrochromic device architecture permitted a dual image electrochromic device incorporating patterned PEDOT and patterned polypyrrole on the same electrode, allowing the switching between two different images.
Subject headings
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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