Abstract Anisotropic electrical behavior of poly(3,4-ethylenedioxythiophene) (PEDOT) films obtained by AC bipolar electropolymerization is reported. Contact behaviors of the PEDOT films with metal electrodes were found to be anisotropic and dependent on the metallic materials and their arrangement, where Schottky and Ohmic junctions were both observed on the same film. Based on the comprehensive control experiments and photoemission yield spectroscopy in air study, the anisotropic behavior of PEDOT films was attributed to the in-plane gradient doping across the film, which was given during the AC bipolar electropolymerization.

中文翻译：

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AC双极电聚合制备的聚（3,4-亚乙基二氧噻吩）薄膜的各向异性电学行为

摘要 报道了通过交流双极电聚合获得的聚（3,4-亚乙基二氧噻吩）（PEDOT）薄膜的各向异性电学行为。发现 PEDOT 薄膜与金属电极的接触行为是各向异性的，并且取决于金属材料及其排列，其中在同一薄膜上观察到肖特基结和欧姆结。基于空气研究中的综合控制实验和光发射产率光谱，PEDOT 薄膜的各向异性行为归因于薄膜的面内梯度掺杂，这是在交流双极电聚合过程中给出的。