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Abstract A series of viologen derivatives, 1,1′-bistriphenylamine-4,4′-bipyridine (2TPAV2+(PF6−)2), 1,1′-bis(N-phenylpyrrole)− 4,4′-bipyridine (2PPV2+(PF6−)2), and 1,1′-bis(N-phenylcarbazole)− 4,4′-bipyridine (2PCV2+(PF6−)2), were synthesized. The electrochemical and electrochromic properties of these viologen derivatives were investigated. Electrochromic devices (ECDs) based… Click to show full abstract
Abstract A series of viologen derivatives, 1,1′-bistriphenylamine-4,4′-bipyridine (2TPAV2+(PF6−)2), 1,1′-bis(N-phenylpyrrole)− 4,4′-bipyridine (2PPV2+(PF6−)2), and 1,1′-bis(N-phenylcarbazole)− 4,4′-bipyridine (2PCV2+(PF6−)2), were synthesized. The electrochemical and electrochromic properties of these viologen derivatives were investigated. Electrochromic devices (ECDs) based on these viologen derivative exhibited reversible, multicolored changes under applied voltages. Among them, the optical contrast of ECD based on 2PCV2+(PF6−)2 reached 62.1% and 62.5% at 617 nm and 716 nm, respectively.
Journal Title: Synthetic Metals
Year Published: 2020
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