Analysis of Fabrication and Performance Study of Flexoelectric Pressure Sensors with Bionic Fingerprint Structure
This paper describes that the fingerprint patterns play an important role in the amplification and transmission of tactile signals for human body.Inspired by the human fingertip structures,it prepares a series of poly(vinylidene fluoride)PVDF-based flexible pressure sensors bearing fingerprint structures and investigate the apparent piezoelectric output of the sensors through electrical coupling tests.The results show that the flexoelectric effect in PVDF can be enhanced by introducing the bionic fingerprint structure,which is 5 times more sensitive compared to the sensor without the structures.
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