Electrodeposited Copolymers Based on 9,9′-(5-Bromo-1,3-phenylene)biscarbazole and Dithiophene Derivatives for High-Performance Electrochromic Devices
A 1,3-bis(carbazol-9-yl)benzene derivative (BPBC) was synthesized and its related homopolymer (PBPBC) and copolymers (P(BPBC-<i>co</i>-BT), P(BPBC-<i>co</i>-CDT), and P(BPBC-<i>co</i>-CDTK)) were prepared using electrochemical polymerization. Investigations of pol...
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MDPI AG
2021-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/7/1136 |
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| author | Chung-Wen Kuo Jui-Cheng Chang Jeng-Kuei Chang Sheng-Wei Huang Pei-Ying Lee Tzi-Yi Wu |
| author_facet | Chung-Wen Kuo Jui-Cheng Chang Jeng-Kuei Chang Sheng-Wei Huang Pei-Ying Lee Tzi-Yi Wu |
| author_sort | Chung-Wen Kuo |
| collection | DOAJ |
| description | A 1,3-bis(carbazol-9-yl)benzene derivative (BPBC) was synthesized and its related homopolymer (PBPBC) and copolymers (P(BPBC-<i>co</i>-BT), P(BPBC-<i>co</i>-CDT), and P(BPBC-<i>co</i>-CDTK)) were prepared using electrochemical polymerization. Investigations of polymeric spectra showed that PBPBC film was grey, iron-grey, yellowish-grey, and greyish-green from the neutral to the oxidized state. P(BPBC-<i>co</i>-BT), P(BPBC-<i>co</i>-CDT), and P(BPBC-<i>co</i>-CDTK) films showed multicolor transitions from the reduced to the oxidized state. The transmittance change (Δ<i>T</i>) of PBPBC, P(BPBC-<i>co</i>-BT), P(BPBC-<i>co</i>-CDT), and P(BPBC-<i>co</i>-CDTK) films were 29.6% at 1040 nm, 44.4% at 1030 nm, 22.3% at 1050 nm, and 41.4% at 1070 nm. The coloration efficiency (<i>η</i>) of PBPBC and P(BPBC-<i>co</i>-CDTK) films were evaluated to be 140.3 cm<sup>2</sup> C<sup>−1</sup> at 1040 nm and 283.7 cm<sup>2</sup> C<sup>−1</sup> at 1070 nm, respectively. A P(BPBC-<i>co</i>-BT)/PEDOT electrochromic device (ECD) showed a large Δ<i>T</i> (36.2% at 625 nm) and a fast response time (less than 0.5 s), whereas a P(BPBC-<i>co</i>-CDTK)/PEDOT ECD revealed a large <i>η</i> (534.4 cm<sup>2</sup> C<sup>–1</sup> at 610 nm) and sufficient optical circuit memory. |
| first_indexed | 2024-03-10T12:40:03Z |
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| institution | Directory Open Access Journal |
| issn | 2073-4360 |
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| publishDate | 2021-04-01 |
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| series | Polymers |
| spelling | doaj.art-dd765be76f8e4b8fbb6e30d17d7d27612023-11-21T14:00:13ZengMDPI AGPolymers2073-43602021-04-01137113610.3390/polym13071136Electrodeposited Copolymers Based on 9,9′-(5-Bromo-1,3-phenylene)biscarbazole and Dithiophene Derivatives for High-Performance Electrochromic DevicesChung-Wen Kuo0Jui-Cheng Chang1Jeng-Kuei Chang2Sheng-Wei Huang3Pei-Ying Lee4Tzi-Yi Wu5Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, TaiwanDepartment of Chemical Engineering and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, TaiwanDepartment of Materials Science and Engineering, National Yang Ming Chiao Tung University, No. 1001 University Road, Hsinchu 30010, TaiwanDepartment of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, TaiwanDepartment of Chemical Engineering and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, TaiwanDepartment of Chemical Engineering and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, TaiwanA 1,3-bis(carbazol-9-yl)benzene derivative (BPBC) was synthesized and its related homopolymer (PBPBC) and copolymers (P(BPBC-<i>co</i>-BT), P(BPBC-<i>co</i>-CDT), and P(BPBC-<i>co</i>-CDTK)) were prepared using electrochemical polymerization. Investigations of polymeric spectra showed that PBPBC film was grey, iron-grey, yellowish-grey, and greyish-green from the neutral to the oxidized state. P(BPBC-<i>co</i>-BT), P(BPBC-<i>co</i>-CDT), and P(BPBC-<i>co</i>-CDTK) films showed multicolor transitions from the reduced to the oxidized state. The transmittance change (Δ<i>T</i>) of PBPBC, P(BPBC-<i>co</i>-BT), P(BPBC-<i>co</i>-CDT), and P(BPBC-<i>co</i>-CDTK) films were 29.6% at 1040 nm, 44.4% at 1030 nm, 22.3% at 1050 nm, and 41.4% at 1070 nm. The coloration efficiency (<i>η</i>) of PBPBC and P(BPBC-<i>co</i>-CDTK) films were evaluated to be 140.3 cm<sup>2</sup> C<sup>−1</sup> at 1040 nm and 283.7 cm<sup>2</sup> C<sup>−1</sup> at 1070 nm, respectively. A P(BPBC-<i>co</i>-BT)/PEDOT electrochromic device (ECD) showed a large Δ<i>T</i> (36.2% at 625 nm) and a fast response time (less than 0.5 s), whereas a P(BPBC-<i>co</i>-CDTK)/PEDOT ECD revealed a large <i>η</i> (534.4 cm<sup>2</sup> C<sup>–1</sup> at 610 nm) and sufficient optical circuit memory.https://www.mdpi.com/2073-4360/13/7/1136electrodepositionabsorption spectratransmittanceelectrochromic deviceredox stability |
| spellingShingle | Chung-Wen Kuo Jui-Cheng Chang Jeng-Kuei Chang Sheng-Wei Huang Pei-Ying Lee Tzi-Yi Wu Electrodeposited Copolymers Based on 9,9′-(5-Bromo-1,3-phenylene)biscarbazole and Dithiophene Derivatives for High-Performance Electrochromic Devices Polymers electrodeposition absorption spectra transmittance electrochromic device redox stability |
| title | Electrodeposited Copolymers Based on 9,9′-(5-Bromo-1,3-phenylene)biscarbazole and Dithiophene Derivatives for High-Performance Electrochromic Devices |
| title_full | Electrodeposited Copolymers Based on 9,9′-(5-Bromo-1,3-phenylene)biscarbazole and Dithiophene Derivatives for High-Performance Electrochromic Devices |
| title_fullStr | Electrodeposited Copolymers Based on 9,9′-(5-Bromo-1,3-phenylene)biscarbazole and Dithiophene Derivatives for High-Performance Electrochromic Devices |
| title_full_unstemmed | Electrodeposited Copolymers Based on 9,9′-(5-Bromo-1,3-phenylene)biscarbazole and Dithiophene Derivatives for High-Performance Electrochromic Devices |
| title_short | Electrodeposited Copolymers Based on 9,9′-(5-Bromo-1,3-phenylene)biscarbazole and Dithiophene Derivatives for High-Performance Electrochromic Devices |
| title_sort | electrodeposited copolymers based on 9 9 5 bromo 1 3 phenylene biscarbazole and dithiophene derivatives for high performance electrochromic devices |
| topic | electrodeposition absorption spectra transmittance electrochromic device redox stability |
| url | https://www.mdpi.com/2073-4360/13/7/1136 |
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