A new class of organic arylamine electrochromes (both ionic and neutral) is developed to afford enhanced optical and electrochemical switching properties in electrochromic devices.  Anionic polyarylamines are prepared and tested in singular type I electrochromic devices (ECD).  By controlling the nature of the redox-active polyarylamino unit and alternating the charge state of the colored forms of the electrochrome, theoptical states and contrast afforded to ECDs based on these new materials are being measured and optimized.  A set of oligomeric arylamine derivatives with multi-colored states are being developed for multi-colored ECDs.

Preparation of stable radical zwitterions: New active materials for organic electrochromic devices

245th National Meeting (2013)

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