https://scholars.lib.ntu.edu.tw/handle/123456789/631435
標題: | Unprecedented facile approach of multiple amino-substituted triphenylamine derivatives for electrochromic devices with extremely high coloration efficiency and unexpected redox stability | 作者: | Shao, Yu Jen Tu, Min Hsiu GUEY-SHENG LIOU |
關鍵字: | Amino substituent | Electrochromism | High coloration efficiency | High stability | Triphenylamine derivatives | 公開日期: | 15-六月-2023 | 卷: | 466 | 來源出版物: | Chemical Engineering Journal | 摘要: | Generally, the amino group is considered highly reactive and unstable. Thus, the amino derivatives would be entirely consumed by polymerization or end-capping to preserve the material stability in most research or application fields. Herein, we demonstrated that triphenylamine (TPA) with multiple para-amino substituents could reduce oxidation potential and provide extra oxidation sites while retaining their reversibility. Four para-amino-substituted TPA derivatives (TPA-1N, TPA-2N, TPA-3N, and TPA-ADM) designed and prepared in this study exhibited excellent stability under the electrochemical redox procedure, revealing more than 88% reversibility in the continuous cyclic voltammetry process up to 10,000 cycles. Among all the electrochromic devices, TPA-3N/HV performs the highest coloration efficiency (631 cm2/C), coloration speed (46.4 % s−1), and superior stability, manifesting a reversibility of 99% or 98% after 1000 cycles (switching) or 10 h (maintaining at coloring state), respectively. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/631435 | ISSN: | 13858947 | DOI: | 10.1016/j.cej.2023.143003 |
顯示於: | 高分子科學與工程學研究所 |
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