Ultra‐long cycling stability is essential for conducting polymers (CPs) in the practical application of organic electronics. However, CPs usually exhibit poor cycling stability and fragile mechanical properties. Herein, through two alkyl‐bridged monomers, freestanding, flexible conducting P(EDOT‐co‐BEDTH) films based on the copolymerization of EDOT and 1,6‐bis((2,3‐dihydrothieno[3,4‐b][1,4]dioxin‐2‐yl)methoxy)hexane (BEDTH) are easily prepared through a one‐step electrodeposition process in CH₂Cl₂ containing 0.1 M Bu₄NBF₄. Both the homopolymers and copolymers are characterized by using SEM, FTIR and UV/Vis spectroscopy, dynamic mechanical analysis (DMA), thermogravimetry (TG), and electrochemical methods. The results of DMA and TG indicate that the copolymer films show better mechanical flexibility and thermal stability than the corresponding homopolymers. Electrochemical results of P(EDOT‐co‐BEDTH) films with a capacitance of 23.6 mF cm⁻² at 10 mV s⁻¹ present ultra‐stable cycle life with a cycling capacitance retention of 99 % after 30 000 cycles. Furthermore, all‐solid‐state supercapacitors based on flexible P(EDOT‐co‐BEDTH) films exhibit the practical ability to light a red light‐emitting‐diode, demonstrating great promise in flexible energy‐storage devices.

中文翻译：

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一步电沉积法制备用于超稳定超级电容器的坚固，柔性，基于PEDOT的薄膜

在有机电子的实际应用中，超长循环稳定性对于导电聚合物（CP）至关重要。然而，CP通常表现出差的循环稳定性和脆弱的机械性能。在本文中，通过两个烷基桥连的单体，独立式的，柔性导电P（EDOT-共基于EDOT和1,6-双（（2,3-二氢[3,4的共聚-BEDTH）膜b ] [1 ，4]二恶英-2-基）甲氧基）己烷（BEDTH）可以通过一步电沉积工艺轻松地在含0.1 M Bu ₄ NBF _4的CH ₂ Cl ₂中进行。。均聚物和共聚物都通过SEM，FTIR和UV / Vis光谱，动态力学分析（DMA），热重分析（TG）和电化学方法进行表征。DMA和TG的结果表明，与相应的均聚物相比，共聚物薄膜具有更好的机械柔韧性和热稳定性。P（EDOT- co- BEDTH）薄膜在10 mV s ^-1下的电容量为23.6 mF cm ^-2的电化学结果显示出超稳定的循环寿命，在3万次循环后循环电容保持率达99％。此外，基于灵活的P（EDOT- co）的全固态超级电容器‐BEDTH）薄膜具有点亮红色发光二极管的实用能力，这在柔性储能设备中显示出了广阔的前景。