Conjugated polymer-polyelectrolyte blends combine and couple electronic semiconductor functionality with selective ionic transport, making them attractive as the active material in organic biosensors and bioelectronics, electrochromic displays, neuromorphic computing, and energy conversion and storage. Although extensively studied and explored, fundamental knowledge and accurate quantitative models of the coupled ion-electron functionality and transport are still lacking to predict the characteristics of electrodes and devices based on these blends. We report on a two-phase model, which couples the chemical potential of the holes, in the conjugated polymer, with the electric double layer residing at the conjugated polymer-polyelectrolyte interface. The model reproduces a wide range of experimental charging and transport data and provides a coherent theoretical framework for the system as well as local electrostatic potentials, energy levels, and charge carrier concentrations. This knowledge is crucial for future developments and optimizations of bioelectronic and energy devices based on the electronic-ionic interaction within these materials.

中文翻译：

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共轭聚合物-聚电解质混合物中的化学势-电双层耦合。


共轭聚合物-聚电解质混合物将电子半导体功能与选择性离子传输结合和耦合，使其成为有机生物传感器和生物电子学、电致变色显示器、神经形态计算以及能量转换和存储中的活性材料。尽管进行了广泛的研究和探索，但仍然缺乏耦合离子电子功能和传输的基础知识和准确的定量模型来预测基于这些混合物的电极和器件的特性。我们报告了一个两相模型，该模型将共轭聚合物中空穴的化学势与位于共轭聚合物-聚电解质界面处的双电层耦合。该模型再现了广泛的实验充电和传输数据，并为系统以及局部静电势、能级和载流子浓度提供了一致的理论框架。这些知识对于基于这些材料内的电子离子相互作用的生物电子和能源设备的未来开发和优化至关重要。