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Volume 9
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10.3390/polym9100543
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Article

Poly(tris(4-carbazoyl-9-ylphenyl)amine)/Three Poly(3,4-ethylenedioxythiophene) Derivatives in Complementary High-Contrast Electrochromic Devices

by
Chung-Wen Kuo
1,
Jeng-Kuei Chang
2,
Yuan-Chung Lin
3,
Tzi-Yi Wu
4,*,
Po-Ying Lee
1 and
Tsung-Han Ho
1
1
Department of Chemical and Materials Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80778, Taiwan
2
Institute of Materials Science and Engineering, National Central University, Taoyuan 32001, Taiwan
3
Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
4
Department of Chemical Engineering and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan
*
Author to whom correspondence should be addressed.
Polymers 2017, 9(10), 543; https://doi.org/10.3390/polym9100543
Submission received: 21 September 2017 / Revised: 11 October 2017 / Accepted: 17 October 2017 / Published: 23 October 2017
(This article belongs to the Special Issue Polymer Characterization)
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Abstract

A carbazole-based polymer (poly(tris(4-carbazoyl-9-ylphenyl)amine) (PtCz)) is electrosynthesized on an indium tin oxide (ITO) electrode. PtCz film displays light yellow at 0.0 V, earthy yellow at 1.3 V, grey at 1.5 V, and dark grey at 1.8 V in 0.2 M LiClO4/ACN/DCM (ACN/DCM = 1:3, by volume) solution. The ΔT and coloration efficiency (η) of PtCz film are 30.5% and 54.8 cm2∙C−1, respectively, in a solution state. Three dual-type electrochromic devices (ECDs) are fabricated using the PtCz as the anodic layer, poly(3,4-ethylenedioxythiophene) (PEDOT), poly(3,3-dimethyl-3,4-dihydro-thieno[3,4-b][1,4]dioxepine) (PProDOT-Me2), and poly(3,4-(2,2-diethylpropylenedioxy)thiophene) (PProDOT-Et2) as the cathodic layers. PtCz/PProDOT-Me2 ECD shows high ΔTmax (36%), high ηmax (343.4 cm2·C−1), and fast switching speed (0.2 s) at 572 nm. In addition, PtCz/PEDOT, PtCz/PProDOT-Me2, and PtCz/PProDOT-Et2 ECDs show satisfactory open circuit memory and long-term stability.
Keywords: electrochemical polymerization; optical contrast; electrochromic switching; coloration efficiency; electrochromic device electrochemical polymerization; optical contrast; electrochromic switching; coloration efficiency; electrochromic device
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MDPI and ACS Style

Kuo, C.-W.; Chang, J.-K.; Lin, Y.-C.; Wu, T.-Y.; Lee, P.-Y.; Ho, T.-H. Poly(tris(4-carbazoyl-9-ylphenyl)amine)/Three Poly(3,4-ethylenedioxythiophene) Derivatives in Complementary High-Contrast Electrochromic Devices. Polymers 2017, 9, 543. https://doi.org/10.3390/polym9100543

AMA Style

Kuo C-W, Chang J-K, Lin Y-C, Wu T-Y, Lee P-Y, Ho T-H. Poly(tris(4-carbazoyl-9-ylphenyl)amine)/Three Poly(3,4-ethylenedioxythiophene) Derivatives in Complementary High-Contrast Electrochromic Devices. Polymers. 2017; 9(10):543. https://doi.org/10.3390/polym9100543

Chicago/Turabian Style

Kuo, Chung-Wen, Jeng-Kuei Chang, Yuan-Chung Lin, Tzi-Yi Wu, Po-Ying Lee, and Tsung-Han Ho. 2017. "Poly(tris(4-carbazoyl-9-ylphenyl)amine)/Three Poly(3,4-ethylenedioxythiophene) Derivatives in Complementary High-Contrast Electrochromic Devices" Polymers 9, no. 10: 543. https://doi.org/10.3390/polym9100543

APA Style

Kuo, C.-W., Chang, J.-K., Lin, Y.-C., Wu, T.-Y., Lee, P.-Y., & Ho, T.-H. (2017). Poly(tris(4-carbazoyl-9-ylphenyl)amine)/Three Poly(3,4-ethylenedioxythiophene) Derivatives in Complementary High-Contrast Electrochromic Devices. Polymers, 9(10), 543. https://doi.org/10.3390/polym9100543

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