期刊
SMALL
卷 14, 期 15, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201704149
关键词
electrospinning; piezoresistive sensors; spacers; wrinkled graphene films
类别
资金
- Natural Science Foundation of Hubei Province [2016CFB432]
- National Natural Science Foundation of China [11674113]
Piezoresistive sensor is a promising pressure sensor due to its attractive advantages including uncomplicated signal collection, simple manufacture, economical and practical characteristics. Here, a flexible and highly sensitive pressure sensor based on wrinkled graphene film (WGF)/innerconnected polyvinyl alcohol (PVA) nanowires/interdigital electrodes is fabricated. Due to the synergistic effect between WGF and innerconnected PVA nanowires, the as-prepared pressure sensor realizes a high sensitivity of 28.34 kPa(-1). In addition, the device is able to discern lightweight rice about 22.4 mg (approximate to 2.24 Pa) and shows excellent durability and reliability after 6000 repeated loading and unloading cycles. What is more, the device can detect subtle pulse beat and monitor various human movement behaviors in real-time.
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