Stretchable electronics have increasingly gained interest both in the academic and industrial communities owing to its potential to enable a wide variety of applications, especially wearable and implantable devices for biomedical applications. As the key component for electronic devices, the design of a suitable semiconductor is essential, while the solution processability and structural tunability of polymer semiconductor make it a promising candidate. Along this line, it is important to consider the mechanical properties of polymer semiconductors in the design of flexible and stretchable devices placed on soft and curved surfaces to accommodate the constant movement of the human body. However, achieving high mechanical deformability and high charge transport properties simultaneously in polymer semiconductors remains a major challenge. In this trend article, we survey various approaches in designing intrinsically stretchable conjugated polymers, focusing on structure-property relationships from a molecular perspective, such as molecular weight, regioregularity, backbone and side chain modifications. Understanding the influence of these molecular structure parameters on thin film morphology may provide general guidelines for achieving desired microstructures that allow mechanical deformation without interrupting charge transport. Beyond highlighting recent key work in this field, we will discuss future prospects of stretchable conjugated polymers.

可伸缩电子设备具有实现广泛应用的潜力，尤其是用于生物医学应用的可穿戴和可植入设备，因此在学术界和工业界都越来越引起人们的兴趣。作为电子设备的关键组件，合适的半导体设计必不可少，而聚合物半导体的溶液可加工性和结构可调性使其成为有前途的候选者。沿着这条路线，在设计放置在柔软和弯曲表面上的柔性和可拉伸设备时要考虑到聚合物半导体的机械性能，这一点很重要，以适应人体的不断运动。然而，在聚合物半导体中同时实现高机械变形性和高电荷传输性能仍然是主要挑战。在这篇趋势文章中，我们调查了设计固有可拉伸共轭聚合物的各种方法，从分子角度着眼于结构与性质的关系，例如分子量，区域规则性，主链和侧链修饰。了解这些分子结构参数对薄膜形态的影响可以为获得所需的允许机械变形而不中断电荷传输的微结构提供一般指导。除了强调该领域的最新关键工作外，我们还将讨论可拉伸共轭聚合物的未来前景。骨架和侧链修饰。了解这些分子结构参数对薄膜形态的影响可以为获得所需的允许机械变形而不中断电荷传输的微结构提供一般指导。除了强调该领域的最新关键工作外，我们还将讨论可拉伸共轭聚合物的未来前景。骨架和侧链修饰。了解这些分子结构参数对薄膜形态的影响可以为获得所需的允许机械变形而不中断电荷传输的微结构提供一般指导。除了强调该领域的最新关键工作外，我们还将讨论可拉伸共轭聚合物的未来前景。