This paper describes ambipolar polymers made of penta(N-alkyl carbazole)-corannulene extended viologen for use as an electrochromic supercapacitor. Electrochromic supercapacitors with visible energy storage levels and high charge/discharge rates have been used to power wearable and portable intelligent electronics. Redox-active π-conjugated polymers have received significant attention because they can change color and store energy through a faradaic reaction during the doping/dedoping process. However, conjugated ambipolar polymers used as electrochromic supercapacitors generally display color at both neutral and doped states because of the extensive conjugation of the donor and acceptor units. The alkyl chain as a nonconjugated linker bridged the donor and acceptor units to help retain the electrochromic behaviors of the individual unit and pursue a transparent-to-color electrochromic supercapacitor. Still, the length of the alkyl chain affects the optical contrast and specific capacitance of the polymers. An ambipolar polymer with a butyl chain as linker displays the highest optical contrast and the best performance of specific capacitance at 291 and 394 F g^–1 in the p-doping and n-doping regions, respectively. Finally, the ambipolar polymer was applied to fabricate a gel-type electrochromic device, which demonstrates a transparent-to-green switching during the charge/discharge process.

中文翻译：

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用于透明至彩色电致变色超级电容器的 Corannulene 扩展紫罗碱基双极性聚合物

本文介绍了由 penta( N-烷基咔唑)-corannulene 扩展紫精，用作电致变色超级电容器。具有可见能量存储水平和高充电/放电率的电致变色超级电容器已被用于为可穿戴和便携式智能电子设备供电。具有氧化还原活性的 π 共轭聚合物受到了极大的关注，因为它们可以在掺杂/去掺杂过程中通过法拉第反应改变颜色并储存能量。然而，由于供体和受体单元的广泛共轭，用作电致变色超级电容器的共轭双极性聚合物通常在中性和掺杂状态下均显示颜色。作为非共轭接头的烷基链桥接了供体和受体单元，以帮助保留单个单元的电致变色行为并追求透明至彩色的电致变色超级电容器。尽管如此，烷基链的长度仍会影响聚合物的光学对比度和比电容。以丁基链为接头的双极性聚合物在 291 和 394 F g 下显示出最高的光学对比度和最佳的比电容性能^-1在 p 掺杂和 n 掺杂区域，分别。最后，将双极性聚合物用于制造凝胶型电致变色器件，该器件在充电/放电过程中表现出透明到绿色的切换。