When Assembly Meets Processing: Tuning Multiscale Morphology of Printed Conjugated Polymers for Controlled Charge Transport
When Assembly Meets Processing: Tuning Multiscale Morphology of Printed Conjugated Polymers for Controlled Charge Transport
复制标题
DOI：
10.1021/acs.chemmater.0c04152
复制
发表时间：
2021-01-13
影响因子：
8.6
通讯作者：
Diao, Ying
中科院分区：
文献类型：
--
作者：
Park, Kyung Sun;Kwok, Justin J.;Diao, Ying
共轭聚合物由于其低成本、高通量的溶液加工性、机械柔性、拉伸性、自修复特性以及与生物系统接口和通信的能力而迅速成为下一代电子产品的一类有吸引力的半导体。因此，在过去的四十年里，已经看到了激增的研究，提供了开创性的贡献，彻底了解共轭聚合物。决定共轭聚合物电子性能的关键因素之一是它们的组装和结晶行为，这一直是有趣和具有挑战性的研究。复杂的溶液加工环境和快速动力学与共轭聚合物组装过程强烈耦合，进一步使完整的机械图复杂化。在这个角度，我们总结了电荷传输机制，共轭聚合物组装的基本原理，和溶液打印。我们进一步讨论了中央战略，已开发的解决方案打印过程中控制和增强其多尺度组装。最后，我们希望我们的观点将刺激更多的研究如何处理可以控制共轭聚合物的形态和电荷传输，以及这些概念应用到其他先进的功能材料。
Conjugated polymers are rapidly emerging as an attractive class of semiconductors for next-generation electronics thanks to their low-cost, high-throughput solution processability, mechanical flexibility, stretchability, self-healing properties, and ability to interface and communicate with biological systems. Accordingly, the last four decades has seen a surge of studies that have provided seminal contributions to the thorough understanding of conjugated polymers. One of the key factors that dictates the electronic performance of conjugated polymers is their assembly and crystallization behavior, which has remained intriguing and challenging to study. The complex solution processing environment and rapid kinetics strongly couple with the conjugated polymer assembly process, further complicating a full mechanistic picture. In this perspective, we summarize the charge transport mechanism, fundamentals of conjugated polymer assembly, and solution printing. We further discuss central strategies that have been developed to control and enhance their multiscale assembly during solution printing. Finally, we hope that our perspective will stimulate more studies on how processing can control morphology and charge transport of conjugated polymers and applications of these concepts to other advanced functional materials.