Flexible pressure sensors have potential applications in human motion monitoring and electronic skins. To satisfy the practical applications, pressure sensors with a high sensitivity, a low detection limit, a broad response range, and an excellent stability are highly needed. Here, a piezoresistive pressure sensor based on wavy‐structured single‐walled carbon nanotube/graphite flake/thermoplastic polyurethane (SWCNT/GF/TPU) composite film is fabricated by a prestretching process. Due to the random wavy structure, high conductivity, and good flexibility, the prepared sensor displays a low detection limit of 2 Pa, a wide sensing range of 0–60 kPa, and a high sensitivity of 5.49 kPa⁻¹ for 0–50 Pa. Furthermore, the sensor shows a remarkable repeatability of over 1.1 × 10⁴, 9.0 × 10³, and 2.0 × 10³ pressure loading/unloading cycles at 50 Pa, 500 Pa, and 30 kPa, respectively, and a fast responsibility of 100–150 ms of loading response time and 400–600 ms of relaxation time. Therefore, the pressure sensor is successfully adopted to monitor both the large‐scale human activities (e.g., walk and jump) and the small‐scale signals (e.g., wrist pulse). Furthermore, a sensor array is assembled to map the weight and shape of an object, indicating its various potential applications including human–machine interactions, human health monitoring, and other wearable electronics.

中文翻译：

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基于波浪结构的柔性导电复合膜的耐用，灵敏和大范围可穿戴压力传感器

柔性压力传感器在人体运动监测和电子皮肤中具有潜在的应用。为了满足实际应用，迫切需要具有高灵敏度，低检测极限，宽响应范围和优异稳定性的压力传感器。在此，通过预拉伸工艺制造了基于波浪结构的单壁碳纳米管/石墨薄片/热塑性聚氨酯（SWCNT / GF / TPU）复合膜的压阻压力传感器。由于具有波浪状的随机结构，高电导率和良好的柔韧性，因此所准备的传感器显示出2 Pa的低检测限，0-60 kPa的宽检测范围以及0-50 Pa的高灵敏度5.49 kPa ^-1。此外，传感器显示的超过1.1×10的显着的可重复性⁴，9.0×10^分别在50 Pa，500 Pa和30 kPa时分别进行³和2.0×10 ^3个压力加载/卸载循环，并具有100-150 ms的加载响应时间和400-600 ms的松弛时间的快速响应。因此，压力传感器已成功地用于监视大型人类活动（例如，步行和跳跃）和小型信号（例如，手腕脉冲）。此外，组装了一个传感器阵列以绘制物体的重量和形状，以指示其各种潜在的应用，包括人机交互，人类健康监控以及其他可穿戴电子设备。