Organic electrochemical transistors (OECTs) based on conjugated polymers have aroused great interest in flexible bioelectronics due to their high transconductance, low operating voltage, and good biocompatibility. The OECT performance is mainly determined by the mixed ionic and electronic transport properties of organic semiconductors, which are largely influenced by the molecular packing and film morphology. To date, most efforts have been devoted to the development of new polymer structures. However, understanding the relationship among the chemical structure, molecular packing, film morphology, and OECT performance remains less explored. In this review, we provide an overview of recent advances in OECTs, with special emphasis on the relationship among the chemical structure, molecular packing, film morphology, and OECT performance. Finally, the challenges and prospects of OECTs are discussed as guidelines for future exploration.

中文翻译：

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有机电化学晶体管中的分子堆积和薄膜形态控制

基于共轭聚合物的有机电化学晶体管（OECT）由于其高跨导、低工作电压和良好的生物相容性而引起了柔性生物电子学的极大兴趣。OECT 性能主要由有机半导体的混合离子和电子传输特性决定，这在很大程度上受分子堆积和薄膜形态的影响。迄今为止，大部分努力都致力于开发新的聚合物结构。然而，了解化学结构、分子堆积、薄膜形态和 OECT 性能之间的关系仍然很少探索。在这篇综述中，我们概述了 OECT 的最新进展，特别强调了化学结构、分子堆积、薄膜形态和 OECT 性能之间的关系。最后，