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Title: Self-supported semi-interpenetrating polymer networks for new design of electrochromic devices
Authors: Tran-Van, François
Beouch, Layal
Vidal, Fredric
Yammine, Paolo 
Teyssié , Dominique
Chevrot, Claude
Affiliations: Department of Chemistry 
Keywords: PEDOT
Electrochromic device
Conjugated polymer
Issue Date: 2008
Part of: Electrochimica acta
Volume: 53
Issue: 12
Start page: 4336
End page: 4343
This paper reports the preparation of conducting films combining linear poly(3,4-ethylenedioxythiophene) (PEDOT) and cross-linked polyethylene oxide (PEO) into semi-interpenetrating networks. Due to the synthetic pathway, PEDOT is distributed within the PEO matrix and specifically along the two outer faces of the film. Such a distribution of the conducting polymer inside the matrix leads to the design of a self-supported and symmetrical PEDOT–Polymer electrolyte–PEDOT electrochromic device which can substitute the usual multilayer configuration. Optical contrast ΔT630 nm (%) up to 33% is reached without contrast loss after 1500 switches. The switching time is 30 s for bleaching with a good memory effect (less than 1% decrease of transmittance after 1 h) of the device.
DOI: 10.1016/j.electacta.2007.12.087
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Chemistry

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