Review of MXene Nanosheet Composites for Flexible Pressure Sensors

Recently, there has been a huge demand for flexible pressure sensors in various fields, including smart wearable textiles, health detection, and electronic skin. Flexible pressure sensors have been developed with high sensitivity, wide sensing range, rapid response time, and excellent cycling stability. Currently, emerging conductive materials include two-dimensional transition metal carbides and nitrides (MXenes). These materials have attracted immense attention in the field of flexible pressure sensors due to their high electrical conductivity, large specific surface area, and satisfactory hydrophilicity. This review highlights different preparation methods of MXene composites. It also summarizes the nanostructure design of pressure-sensitive materials to improve the performance of flexible pressure sensors for soft electronics applications. This review provides a comprehensive overview of the progress of MXene composites and their prospects in the area of flexible pressure sensors and summarizes the applications and challenges of these sensors in intelligent wearables. This review also proposes some suggestions for developing a new generation of intelligent textiles.