| 초록 |
Mechanoreceptors in human skin possess high sensitivity, wide sensing range and high sensing resolution for external stimuli. In order to mimic the functions and performance of human skin, we describe an all-printed e-skin based on deformable and ionic lens array inspired by the physiological tactile sensing mechanism and the spatial resolution of mechanoreceptors in human skin. We emulated an ionic mechanotransduction channel with a piezocapacitive ionic mechanosensory system that engages in ion migration when the polymer matrix is deformed under a mechanical non-equilibrium state. The size and morphology of the ionic lenses have been adjusted by printing process variables and post-treatment conditions, which resulted in sensitivity and resolution of the device. We believe that a high-resolution e-skin with a deformable, transparent and ionic lens array, which is fabricated by all-printing methodology, will open up new market in the field of soft and stretchable sensory platform.
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