A fast switching, low band gap, p- and n-dopable, donor–acceptor type polymer

Copolymerisation as a way to enhance the electrochromic properties of an alkylthiophene oligomer and a pyrrole derivative: copolymer of 3,3′″ dihexyl-2,2′:5′,2″:5″,2′″-quaterthiophene with (R)-(-)-3-(1-pyrrolyl)propyl-N-(3,5-dinitrobenzoyl)-α-phenylglycinate

“…10 times higher than the values reached for PDNBP deposited with the same Q dep (60 mC cm -2 ) [26] and are in accordance with the values cited in the literature for polymers obtained from thiophene and pyrrole derivatives [55,56]. These results suggest that the copolymer films can be used to assemble electrochromic devices, since a relatively small amount of charge injected per unit area is necessary for attainment of a perceptible colour change.…”

A novel multichromic copolymer via electrochemical copolymerization of (S)-1,1′-binaphthyl-2,2′-diyl bis(N-(6-hexanoic acid-1-yl) pyrrole) and 3,4-ethylenedioxythiophene

“…While most EC polymers display two colors, only a few show multichromism. Therefore, obtaining a conducting polymer with multiple colored states, higher switching rate and reasonable durability has become one of the major focus in the field of EC materials [15][16][17]. It is a wise way to achieve various properties via adjusting the electronic character of the -orbit along the neutral polymer backbone, including main chain and pendant group structural modification and copolymerization [18,19].…”

The synthesis of new donor–acceptor polymers containing the 2,3-di(2-furyl) quinoxaline moiety: Fast-switching, low-band-gap, p- and n-dopable, neutral green-colored materials

“…Additionally, the n-doping of a conjugated polymer system in an n-type manner is not only an electrochemical formation of a reduced state. The introduction of charge carries to conjugated systems should yield considerable structural, conductivity and optical differences [33]. Hence, to prove that an n-type doping process is present, both the electrochemistry of the reduced state and moreover, the spectral changes that occur upon reduction should be examined [34].…”