Recycling by-products in new small molecular electrochromic materials with ultra bistability

Abstract

The potential of three arylamine based molecules for electrochromic applications is investigated herein. The latter, by-product of a Buchwald-Hartwig reaction were fully characterized, instead of being thrown away, due to their structural analogy with well-known electrochromic analogues. It turns out that impressive and stable color changes were recorded when embedded in electrochromic devices. Finally, a flexible patterned electrochromic demonstrator was also fabricated, preliminary steps toward a potential and more environmental friendly signposting mass application.