State Key Laboratory of Transducer Technology, Chinese Academy of Sciences , Beijing 100190, China.
ACS Nano. 2017 Sep 26;11(9):8790-8795. doi: 10.1021/acsnano.7b02826. Epub 2017 Aug 16.
Pressure sensors should have an excellent sensitivity in the range of 0-20 kPa when applied in wearable applications. Traditional pressure sensors cannot achieve both a high sensitivity and a large working range simultaneously, which results in their limited applications in wearable fields. There is an urgent need to develop a pressure sensor to make a breakthrough in both sensitivity and working range. In this paper, a graphene-paper pressure sensor that shows excellent performance in the range of 0-20 kPa is proposed. Compared to most reported graphene pressure sensors, this work realizes the optimization of sensitivity and working range, which is especially suitable for wearable applications. We also demonstrate that the pressure sensor can be applied in pulse detection, respiratory detection, voice recognition, as well as various intense motion detections. This graphene-paper pressure sensor will have great potentials for smart wearable devices to achieve health monitoring and motion detection.
压力传感器在可穿戴应用中，其在 0-20 kPa 范围内应具有优异的灵敏度。传统的压力传感器不能同时实现高灵敏度和大工作范围，这导致它们在可穿戴领域的应用受到限制。因此，迫切需要开发一种压力传感器，在灵敏度和工作范围方面取得突破。本文提出了一种在 0-20 kPa 范围内具有优异性能的石墨烯纸压力传感器。与大多数报道的石墨烯压力传感器相比，这项工作实现了灵敏度和工作范围的优化，特别适用于可穿戴应用。我们还证明，该压力传感器可应用于脉冲检测、呼吸检测、语音识别以及各种剧烈运动检测。这种石墨烯纸压力传感器将为智能可穿戴设备实现健康监测和运动检测提供巨大潜力。
