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A flexible pressure sensor based on an MXene-textile network structure
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DOI：10.1039/c8tc04893b.png)
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Abstract
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High-performance pressure sensors have attracted considerable attention recently due to their promising applications in touch displays, wearable electronics, human-machine interfaces, and real-time physiological signal perception. However, the functionality of a sensor is generally incompatible with simple fabrication strategies. Therefore, strategies that are less equipment-intensive and less expensive are required for enhancing the sensor performance. Here, we propose a flexible piezoresistive pressure sensor based on MXene-textile prepared by a facile dip-coating process. Benefiting from the excellent electrical properties of MXene and the abundant wavy surface of cotton textile, this pressure sensor exhibits high sensitivity (12.095 kPa(-1) for the range 29-40 kPa and 3.844 kPa(-1) for the range less than 29 kPa) with a rapid response time of 26 ms, and excellent cycling stability (5600 cycles). The real-time monitoring of human physiological signals such as wrist pulse, voice detection, and finger movements can be achieved by using this MXene-textile sensor. In addition, sensory arrays were successfully applied in the pressure distribution mapping of a key, demonstrating that the pressure sensor can be used as part of wearable devices and human-machine interfaces to sense pressure.
Keywords:
ELECTRONIC SKIN
COMPOSITE
CATALYST
CARBIDE
FAMILY
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