Conjugated polymers and molecular semiconductors are emerging as a viable semiconductor technology in industries such as displays, electronics, renewable energy, sensing and healthcare. A key enabling factor has been significant scientific progress in improving their charge transport properties and carrier mobilities, which has been made possible by a better understanding of the molecular structure-property relationships and the underpinning charge transport physics. Here we aim to present a coherent review of how we understand charge transport in these high-mobility van der Waals bonded semiconductors. Specific questions of interest include estimates for intrinsic limits to the carrier mobilities that might ultimately be achievable; a discussion of the coupling between charge and structural dynamics; the importance of molecular conformations and mesoscale structural features; how the transport physics of conjugated polymers and small molecule semiconductors are related; and how the incorporation of counterions in doped films-as used, for example, in bioelectronics and thermoelectric devices-affects the electronic structure and charge transport properties.

中文翻译：

---

高迁移率共轭聚合物和分子半导体中的电荷传输。

共轭聚合物和分子半导体正在显示器，电子，可再生能源，传感和医疗保健等行业中成为可行的半导体技术。一个关键的促成因素是改善其电荷传输性质和载流子迁移率的重大科学进展，这是通过更好地了解分子结构-性质关系和基础电荷传输物理学而实现的。在这里，我们旨在对我们如何理解这些高迁移率范德华键合半导体中的电荷传输进行连贯的综述。感兴趣的特定问题包括可能最终可以实现的对运输工具流动性固有限制的估计；讨论电荷与结构动力学之间的耦合；分子构象和中尺度结构特征的重要性；共轭聚合物和小分子半导体的传输物理学之间的关系如何；以及例如在生物电子和热电设备中使用的在掺杂薄膜中掺入抗衡离子如何影响电子结构和电荷传输性能。