This work presents a soluble oligo(ether)‐functionalized propylenedioxythiophene (ProDOT)‐based copolymer as a versatile platform for a range of high‐performance electrochemical devices, including organic electrochemical transistors (OECTs), electrochromic displays, and energy‐storage devices. This polymer exhibits dual electroactivity in both aqueous and organic electrolyte systems, redox stability for thousands of redox cycles, and charge‐storage capacity exceeding 80 F g⁻¹. As an electrochrome, this material undergoes full colored‐to‐colorless optical transitions on rapid time scales (<2 s) and impressive electrochromic contrast (Δ%T > 70%). Incorporation of the polymer into OECTs yields accumulation‐mode devices with an I_ON/OFF current ratio of 10⁵, high transconductance without post‐treatments, as well as competitive hole mobility and volumetric capacitance, making it an attractive candidate for biosensing applications. In addition to being the first ProDOT‐based OECT active material reported to date, this is also the first reported OECT material synthesized via direct(hetero)arylation polymerization, which is a highly favorable polymerization method when compared to commonly used Stille cross‐coupling. This work provides a demonstration of how a single ProDOT‐based polymer, prepared using benign polymerization chemistry and functionalized with highly polar side chains, can be used to access a range of highly desirable properties and performance metrics relevant to electrochemical, optical, and bioelectronic applications.

中文翻译：

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用于有机和水基电化学器件和晶体管的低聚（醚）功能化二氧噻吩共聚物中电荷存储和迁移的平衡

这项工作提出了一种可溶性低聚（醚）官能化的丙烯二氧噻吩（ProDOT）基共聚物，作为一系列高性能电化学装置的多功能平台，包括有机电化学晶体管（OECT），电致变色显示器和储能装置。该聚合物在水性和有机电解质体系中均表现出双重电活性，数千个氧化还原循环的氧化还原稳定性以及超过80 F g ^-1的电荷存储容量。作为一种电致变色材料，该材料在快速的时间尺度（<2 s）和令人印象深刻的电致变色对比度（Δ％T > 70％）上经历了从无色到无色的光学过渡。将聚合物掺入OECT中可产生具有I _{ON / OFF的}累积模式器件电流比为10 ⁵，无需后处理即可实现高跨导，以及具有竞争力的空穴迁移率和体积电容，使其成为生物传感应用的有吸引力的候选者。除了是迄今为止报道的第一种基于ProDOT的OECT活性材料外，这也是第一种通过直接（杂）芳基化聚合合成的OECT材料，与常用的Stille交叉偶联相比，这是一种非常有利的聚合方法。这项工作演示了如何使用良性聚合化学制备并通过高极性侧链官能化的基于ProDOT的聚合物，可用于获得与电化学，光学和生物电子应用相关的一系列非常理想的性能和性能指标。