Highly sensitive and multifunctional tactile sensor using free-standing ZnO/PVDF thin film with graphene electrodes for pressure and temperature monitoring.
Highly sensitive and multifunctional tactile sensor using free-standing ZnO/PVDF thin film with graphene electrodes for pressure and temperature monitoring.
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DOI：
10.1038/srep07887
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发表时间：
2015-01-20
影响因子：
4.6
通讯作者：
Jang J
中科院分区：
文献类型：
--
作者：
Lee JS;Shin KY;Cheong OJ;Kim JH;Jang J
我们展示了一种80 μ m厚的薄膜（约为人类表皮厚度的15%），这是一种高灵敏度的混合功能传感器，由聚偏氟乙烯（PVDF）和ZnO纳米结构与石墨烯电极制成。使用这种薄膜，我们能够同时测量压力和温度在真实的时间。通过材料的压阻从电阻的变化监测压力，并基于信号的恢复时间推断温度。我们的薄膜系统使我们能够检测到小至10 Pa的压力变化，这是压力检测极限，比人造皮肤所需的最低水平低103倍，并检测20-120°C范围内的温度。
We demonstrate an 80-μm-thick film (which is around 15% of the thickness of the human epidermis), which is a highly sensitive hybrid functional gauge sensor, and was fabricated from poly(vinylidene fluoride) (PVDF) and ZnO nanostructures with graphene electrodes. Using this film, we were able to simultaneously measure pressure and temperature in real time. The pressure was monitored from the change in the electrical resistance via the piezoresistance of the material, and the temperature was inferred based on the recovery time of the signal. Our thin film system enabled us to detect changes in pressure as small as 10 Pa which is pressure detection limit was 103-fold lower than the minimum level required for artificial skin, and to detect temperatures in the range 20–120°C.
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影响因子：
56.9
作者：
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通讯作者：
LOVINGER, AJ
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