Wrinkle-structured MXene film assists flexible pressure sensors with superhigh sensitivity and ultrawide detection range

With the rapid development of artificial intelligence and ever-increasing demand for electronic devices, constructing high-performance flexible pressure sensors is urgently needed. In this study, a novel flexible pressure sensor with superhigh sensitivity and ultrawide detection range is tactfully designed and prepared based on wrinkle-structured MXene film. Due to the unique wrinkle structure, the prepared pressure sensor exhibits outstanding performance including high sensitivity of nearly 860 kPa(-1), wide detection range (0.5 Pa - 30 kPa), short response/recover time (40/53 ms) and high stability (11600 cycles). A multi-scale working mechanism is proposed to explain the sensing process. Interestingly, the prepared sensor can easily detect the smallest movement of a millet (2.4 mg) in real time. Based on these advantages, the prepared pressure sensor is expected to show significant potentials in future physiological detection and precision instrument monitoring systems. [GRAPHICS] .

Automated summary

In this study, a novel flexible pressure sensor with superhigh sensitivity and ultrawide detection range is designed and prepared based on wrinkle-structured MXene film. The sensor exhibits outstanding performance including high sensitivity, wide detection range, short response/recover time, high stability, and the ability to detect small movements in real time. It is expected to have significant potentials in future physiological detection and precision instrument monitoring systems.