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  4. Electropolymerization of an EDOT-Quinoxaline Monomer for Green Electrochromic Thin Films and Devices
 
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March 2024
Journal Article
Title

Electropolymerization of an EDOT-Quinoxaline Monomer for Green Electrochromic Thin Films and Devices

Abstract
In this study, we present a 5,8-bis(3,4-ethylenedioxythiophene)quinoxaline monomer with two 4-(octyloxy)phenyl side chains (EDOTPQ) that can be electropolymerized on ITO glass in standard electrolytes containing lithium salts and propylene carbonate as solvent. The electrochemically deposited PEDOTPQ layers show very good adhesion and homogeneity on ITO. The green-colored polymer thin films exhibit promising electrochromic (EC) properties and are interesting for applications such as adaptive camouflage, as well as smart displays, labels, and sensors. Novel organic-inorganic (hybrid) EC cell configurations were realized with Prussian blue (PB) or titanium-vanadium oxide (TiVOx) as ion storage electrodes, showing a highly reversible and fast color change from green to light yellow.
Author(s)
Schott, Marco  
Fraunhofer-Institut für Silicatforschung ISC  
Niklaus, Lukas  
Fraunhofer-Institut für Silicatforschung ISC  
Janietz, Silvia  
Fraunhofer-Institut für Angewandte Polymerforschung IAP  
Völkel, Charlotte
Fraunhofer-Institut für Angewandte Polymerforschung IAP  
Egorov-Brening, Tatjana  
Fraunhofer-Institut für Angewandte Polymerforschung IAP  
Bilkay-Troni, Taybet
Fraunhofer-Institut für Angewandte Polymerforschung IAP  
Journal
Polymers. Online resource  
Open Access
DOI
10.3390/polym16060799
Language
English
Fraunhofer-Institut für Silicatforschung ISC  
Fraunhofer-Institut für Angewandte Polymerforschung IAP  
Keyword(s)
  • electrochromic device

  • electropolymerization

  • green electrochromic polymer

  • Prussian blue

  • Stille cross-coupling

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