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- W2077991282 abstract "Copolymer based on 4-(9H-carbazol-9-yl)-N,N-diphenylaniline (CDPN) and 3,4-ethylenedioxythiophene (EDOT) was electrochemically synthesized and characterized. Through electrochemical methods, FTIR spectroscopy and scanning electron microscopy (SEM) analysis, the resulting polymer was confirmed to be a copolymer rather than a blend or a composite of the respective homopolymers. Besides, the spectroelectrochemical and electrochromic properties of the copolymer (P(CDPN-co-EDOT)) films were investigated. According to the spectroelectrochemical analysis, the copolymer film revealed distinct electrochromic properties with four colors: claret red, green, cadetblue, and blue. At the neutral state of the copolymer, the π-π* transition absorption peak was located at 530 nm and the energy gap was calculated as 1.67 eV. The copolymer film showed a maximum optical contrast (ΔT%) of 36% in visible region with a switching time of 1.8 s and 43% in the near-IR region with a switching time of 2.5 s. The coloration efficiency (CE) of P(CDPN-co-EDOT) were calculated to be 332 cm2·C−1 (at 530 nm), 277 cm2·C−1 (at 810 nm) and 552 cm2·C−1 (at 1100 nm). Repeated cyclic voltammograms indicated that the copolymer had reasonable stability because of the existence of EDOT units." @default.
- W2077991282 created "2016-06-24" @default.
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- W2077991282 date "2013-01-01" @default.
- W2077991282 modified "2023-09-27" @default.
- W2077991282 title "A Multichromic Copolymer Based on 4-(9H-carbazol-9-yl)-N,N-diphenylaniline and 3,4-ethylenedioxythiophene Prepared via Electrocopolymerization" @default.
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- W2077991282 doi "https://doi.org/10.1149/2.103310jes" @default.
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