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This work reports novel dual-colored and fast switching electrochromic materials based on pyridinium salts, 1,1′,1″,1‴-tetrakis(4,4′,4″,4‴-tetrapyridyl)cyclobutane derivatives (TPCBDs). TPCBDs show outstanding electrochromic properties including fast electrochromic switching, dual color, reasonable contrast, low driving voltage, and good stability. TPCBDs are promising candidates for visible electrochromic...
This study aims to achieve dual-color properties for pyridinium-salt-based electrochromic materials. A novel series of 4′-(4-alkyl ester)-4,2′:6′,4″-terpyridinium derivatives were designed and synthesized through the introduction of an ester group onto the benzene ring of 2,4-di(4-pyridyl)-4-benzylpyridinium derivatives. Dual-electrochromic devices based on these compounds were fabricated. Multiple...
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