Femtosecond Laser Induced Graphene/MoS 2 Flexible Pressure Sensors for Human-Robot Kinematic Detection

This study presents a flexible pressure sensor based on femtosecond laser-induced patterned graphene/MoS. for human-robot motion detection. The fabrication method involves incorporating MoS2nanomaterials into a polyimide precursor solution, followed by femtosecond laser patterning on the cured composite film to induce the formation of graphene structures. The laser-induced graphene network exhibits excellent electrical conductivity and mechanical flexibility, while the introduction of MoS2significantly enhances the sensor's sensitivity and electrical performance. The PI substrate provides outstanding mechanical flexibility, enabling the sensor to conform to complex surfaces, making it suitable for motion sensing and human-machine interaction applications. Experimental results demonstrate that the fabricated sensors exhibit excellent pressure-sensing performance, including high sensitivity, fast response time, and good cyclic stability. They are capable of accurately detecting subtle human movements such as facial expressions and joint rotations, which are crucial for precise human-robot motion perception. This work not only proposes a novel and efficient strategy for fabricating high-performance flexible pressure sensors but also shows great potential for advancing humanmachine interaction systems in fields such as intelligent robotics, health monitoring.