Electrochromic devices based on disubstituted oxo-bipyridinium ionic liquids

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Abstract

Electrochromic symmetric and non-symmetric disubstituted oxo-bipyridinium ionic liquids are developed in high purities and yields. Detailed spectroscopic (NMR, FTIR and elemental analysis), thermal (DSC for melting point and glass transition temperatures, Tg determination) and electrochemical (cyclic and square wave voltammetry for determination of redox potential and evaluation of reversibility behaviour) analyses are performed. The most promising electrochromic oxo-bipyridinium ionic liquids in combination with transparent electrolytes are tested as reversible electrochromic devices. More efficient and sustainable electrochromic devices inspired by bipyridinium ionic liquids can be conceived for industrial applications such as electrochromic car rear-view mirrors and smart windows.

Original languageEnglish
Pages (from-to)202-208
Number of pages7
JournalCHEMPLUSCHEM
Volume80
Issue number1
DOIs
Publication statusPublished - 2015

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Keywords

  • Electrochemistry
  • Electrochromic devices
  • Ionic liquids
  • Oxobipyridinium salts
  • Redox chemistry

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