The one-step fabricated laser-induced graphene (LIG) has the advantages of low cost, patterning of various desired geometries, and high sensitivity. However, the robustness of substrates imposes certain constraints on their applications in stretchable devices. In this paper, the substrate composed of polydimethylsiloxane (PDMS) and polyimide (PI) particles is proposed to serve as the platform to manufacture LIG. Ascribing to the inherent soft and stretchable attributes of the PI/PDMS composite substrate, the LIG-based sensors can fit complex 3D configurations or bear a mechanical tension over 15%. Notably, the fluence of the laser is experimentally and theoretically determined as the only principle to characterize the formation of conductive LIG on PI/PDMS composite greatly facilitating the selection of the allowable laser scanning parameters to form the desired LIG-based devices. Three demonstrations are conducted to highlight the superiority and the potential of this soft and stretchable LIG-based system in wearable electronics and soft robots.

一步制造的激光诱导石墨烯（LIG）具有成本低、可图案化各种所需几何形状和高灵敏度的优点。然而，基板的稳健性对其在可拉伸设备中的应用施加了一定的限制。在本文中，提出了由聚二甲基硅氧烷（PDMS）和聚酰亚胺（PI）颗粒组成的基板作为制造LIG的平台。由于 PI/PDMS 复合基板固有的柔软和可拉伸特性，基于 LIG 的传感器可以适应复杂的 3D 配置或承受超过 15% 的机械张力。尤其，激光的能量密度在实验和理论上被确定为表征在 PI/PDMS 复合材料上形成导电 LIG 的唯一原则，这极大地促进了选择允许的激光扫描参数以形成所需的基于 LIG 的器件。进行了三个演示，以突出这种基于 LIG 的柔软和可拉伸系统在可穿戴电子产品和软机器人中的优势和潜力。