A Flexible Pressure Sensor with Multilayer Physical Crosslinking Structure Based on MXene

With the rise of technology such as the Internet of Things and Rrtificial Intelligence, flexible pressure sensors have broad application prospects in fields such as artificial touch, health monitoring, biomimetic electronic skin, etc. Currently, there is still a certain gap between the sensitivity and stability of flexible pressure sensors and practical applications. In this article, MXene is used as a conductive material, a MXene flexible pressure sensor with a multilayer physical crosslinking structure is prepared using vacuum filtration and electrostatic self-assembly methods. The test results show that the prepared flexible pressure sensor has two linear response regions in the pressure range of 0-40kPa, with the highest sensitivity in the low pressure range (0-2kPa), reaching 18.19kPa-1. It also has good piezoresistive sensitivity to the motion state of human limbs, This indicates that the flexible pressure sensor prepared in the experiment has good application prospects in the field of flexible wearable electronic devices.