Graphene-Paper\nPressure Sensor for Detecting Human\nMotions

Abstract

Pressure\nsensors should have an excellent sensitivity in the range\nof 0–20 kPa when applied in wearable applications. Traditional\npressure sensors cannot achieve both a high sensitivity and a large\nworking range simultaneously, which results in their limited applications\nin wearable fields. There is an urgent need to develop a pressure\nsensor to make a breakthrough in both sensitivity and working range.\nIn this paper, a graphene-paper pressure sensor that shows excellent\nperformance in the range of 0–20 kPa is proposed. Compared\nto most reported graphene pressure sensors, this work realizes the\noptimization of sensitivity and working range, which is especially\nsuitable for wearable applications. We also demonstrate that the pressure\nsensor can be applied in pulse detection, respiratory detection, voice\nrecognition, as well as various intense motion detections. This graphene-paper\npressure sensor will have great potentials for smart wearable devices\nto achieve health monitoring and motion detection.