TY - JOUR AU1 - Lin, Qianbing AU2 - Xue, Rui AU3 - Huang, Yan AU4 - Wu, Yibo AU5 - Shi, Qisong AB - The multilayer composite film system was designed in this study. The multilayer composite film was constructed by alternating electrospinning of MXene doped with polyacrylonitrile (PAN) nanofilm and thermoplastic polyurethane (TPU) nanofilm as piezoelectric functional layer. After utilizing nanofilm material, the piezoelectric sensor was prepared and subsequently examined for its piezoelectric sensitivity, piezoelectric output, and mechanical characteristics. MXene/PAN/TPU multilayer composite films showed good piezoelectric output performance. The final experimental data showed that the piezoelectric sensor of the MXene/PAN/TPU-based system achieved 0.16 kPa−1 piezoelectric sensitivity, 150ms/140ms response time and recovery time, good output voltage and output current, and good output stability. In human biological motion detection, the generator produced a maximum output voltage of 30 V when pressed by the palm. Tests such as palm pressing, finger tapping, and footstomping demonstrated the potential of piezoelectric sensors in human energy harvesting and motion monitoring. Multilayer composite films had flexible mechanical properties and sensitive piezoelectric response and had broad application prospects in piezoelectric sensors and piezoelectric nanogenerators. TI - Flexible piezoelectric sensor based on MXene/PAN/TPU composite films for human motion monitoring JF - Polymer Bulletin DO - 10.1007/s00289-024-05234-9 DA - 2024-08-01 UR - https://www.deepdyve.com/lp/springer-journals/flexible-piezoelectric-sensor-based-on-mxene-pan-tpu-composite-films-VBMCp3PMfH SP - 10973 EP - 10990 VL - 81 IS - 12 DP - DeepDyve ER -