Abstract Recently, significant efforts have been devoted on poly(3,4-ethylenedioxyselenophene) (PEDOS) and its derivatives due to their promising properties for various optoelectronic applications. Surprisingly, no study has been reported on electrochemical synthesis of PEDOS on flexible substrate, and its optoelectronic properties. In this work, electropolymerization of 3,4-ethylenedioxyselenophene (EDOS) on flexible (ITO/PET) as well as rigid (ITO/glass) substrates, followed by cyclic voltammetry, electrochemical stability, morphology, spectroelectrochemical, and electrochromic properties of the PEDOS films were studied. For comparison purpose, poly(3,4-ethylenedioxythiophene) (PEDOT) films were also prepared on both flexible and rigid substrates and a throughout comparison was made. It has been observed that the polymer films on flexible substrates are relatively more stable, rough, and show blue shift in absorption spectra as compared to the polymer films on rigid substrates. On repeated bending, polymers films on flexible substrate exhibits good mechanical stability. Moreover, polymer film on flexible substrate has improved contrast ratio than that of polymer film on rigid substrate, whereas no significant change of response time has been observed. To the best of our knowledge, electropolymerization of EDOS on flexible substrate has been reported for the first time.

中文翻译：

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柔性基材上的电聚合聚（3,4-亚乙基二氧硒吩）：硫类似物和刚性基材的电子和电致变色性能比较研究

摘要 最近，由于聚（3,4-亚乙基二氧基硒吩）（PEDOS）及其衍生物在各种光电应用中具有良好的特性，人们对其进行了大量研究。令人惊讶的是，没有关于在柔性基板上电化学合成 PEDOS 及其光电特性的研究报道。在这项工作中，3,4-亚乙基二氧硒酚 (EDOS) 在柔性 (ITO/PET) 和刚性 (ITO/玻璃) 基材上的电聚合，然后是循环伏安法、电化学稳定性、形态、光谱电化学和 PEDOS 的电致变色性能电影进行了研究。出于比较目的，还在柔性和刚性基材上制备了聚（3,4-亚乙基二氧噻吩）（PEDOT）薄膜，并进行了全面比较。已经观察到，与刚性基板上的聚合物膜相比，柔性基板上的聚合物膜相对更稳定、粗糙并且在吸收光谱中显示蓝移。在反复弯曲时，柔性基板上的聚合物薄膜表现出良好的机械稳定性。此外，柔性基板上的聚合物薄膜比刚性基板上的聚合物薄膜具有更高的对比度，而没有观察到响应时间的显着变化。据我们所知，首次报道了 EDOS 在柔性基板上的电聚合。柔性基板上的聚合物薄膜比刚性基板上的聚合物薄膜具有更高的对比度，但没有观察到响应时间的显着变化。据我们所知，首次报道了 EDOS 在柔性基板上的电聚合。柔性基板上的聚合物薄膜比刚性基板上的聚合物薄膜具有更高的对比度，但没有观察到响应时间的显着变化。据我们所知，首次报道了 EDOS 在柔性基板上的电聚合。