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1,4-Bis((9H-Carbazol-9-yl)Methyl)Benzene-Containing Electrochromic Polymers as Potential Electrodes for High-Contrast Electrochromic Devices
| Content Provider | MDPI |
|---|---|
| Author | Kuo, Chung-Wen Chang, Jui-Cheng Lee, Li-Ting Lin, Yi-Dong Lee, Pei-Ying Wu, Tzi-Yi |
| Copyright Year | 2022 |
| Description | Four 1,4-bis((9H-carbazol-9-yl)methyl)benzene-containing polymers (PbCmB, P(bCmB-co-bTP), P(bCmB-co-dbBT), and P(bCmB-co-TF)) were electrosynthesized onto ITO transparent conductive glass and their spectral and electrochromic switching performances were characterized. The PbCmB film displayed four types of color variations (bright gray, dark gray, dark khaki, and dark olive green) from 0.0 to 1.2 V. P(bCmB-co-bTP) displayed a high transmittance variation (∆T = 39.56% at 685 nm) and a satisfactory coloration efficiency (η = 160.5 $cm^{2}∙C^{−1}$ at 685 nm). Dual-layer organic electrochromic devices (ECDs) were built using four bCmB-containing polycarbazoles and poly(3,4-ethylenedioxythiophene) (PEDOT) as anodes and a cathode, respectively. PbCmB/PEDOT ECD displayed gainsboro, dark gray, and bright slate gray colors at −0.4 V, 1.0 V, and 2.0 V, respectively. The P(bCmB-co-bTP)/PEDOT ECD showed a high ∆T (40.7% at 635 nm) and a high coloration efficiency (η = 428.4 $cm^{2}∙C^{−1}$ at 635 nm). The polycarbazole/PEDOT ECDs exhibited moderate open circuit memories and electrochemical redox stability. The characterized electrochromic properties depicted that the as-prepared polycarbazoles had a satisfactory application prospect as an electrode for the ECDs. |
| Starting Page | 1175 |
| e-ISSN | 20734360 |
| DOI | 10.3390/polym14061175 |
| Journal | Polymers |
| Issue Number | 6 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-03-15 |
| Access Restriction | Open |
| Subject Keyword | Polymers Polymer Science Electrosynthesis Redox Process Color-bleach Kinetics Electrochromic Device Electrochemical Redox Stability |
| Content Type | Text |
| Resource Type | Article |
