Flexible pressure sensors are essential components for soft electronics by providing physiological monitoring capability for wearables and tactile perceptions for soft robotics. Flexible pressure sensors with reliable performance are highly desired yet challenging to construct to meet the requirements of practical applications in daily activities and even harsh environments, such as high temperatures. This work describes a highly sensitive and reliable capacitive pressure sensor based on flexible ceramic nanofibrous networks with high structural elasticity, which minimizes performance degradation commonly seen in polymer‐based sensors because of the viscoelastic behavior of polymers. Such ceramic pressure sensors exhibit high sensitivity (≈4.4 kPa⁻¹), ultralow limit of detection (<0.8 Pa), fast response speed (<16 ms) as well as low fatigue over 50 000 loading/unloading cycles. The high stability is attributed to the excellent mechanical stability of the ceramic nanofibrous network. By employing textile‐based electrodes, a fully breathable and wearable ceramic pressure sensor is demonstrated for real‐time health monitoring and motion detection. Owing to the high‐temperature resistance of ceramics, the ceramic nanofibrous network sensor can function properly at temperatures up to 370 °C, showing great promise for harsh environment applications.

中文翻译：

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基于陶瓷纳米纤维的高灵敏、可靠、耐高温柔性压力传感器

柔性压力传感器为可穿戴设备提供生理监测功能，为软机器人提供触觉感知，是软电子产品的重要组件。人们非常需要具有可靠性能的柔性压力传感器，但构造起来却充满挑战，以满足日常活动甚至高温等恶劣环境中的实际应用要求。这项工作描述了一种基于具有高结构弹性的柔性陶瓷纳米纤维网络的高度灵敏且可靠的电容式压力传感器，它最大限度地减少了聚合物传感器中由于聚合物的粘弹性行为而常见的性能下降。这种陶瓷压力传感器具有高灵敏度（≈4.4 kPa ^-1）、超低检测限（<0.8 Pa）、快速响应速度（<16 ms）以及超过50 000次加载/卸载循环的低疲劳性。高稳定性归因于陶瓷纳米纤维网络优异的机械稳定性。通过采用基于织物的电极，完全透气且可穿戴的陶瓷压力传感器被证明可用于实时健康监测和运动检测。由于陶瓷的耐高温特性，陶瓷纳米纤维网络传感器可以在高达370℃的温度下正常工作，在恶劣环境下的应用显示出巨大的前景。