Highly Stretchable Resistive Pressure Sensors Using a Conductive Elastomeric Composite on a Micropyramid Array

摘要

The development of highly sensitive and stretchable pressure sensors is an emerging technological goal in the field of electronic skin and wearable health monitors; these applications require sensors that are sensitive enough to "feel" irritants (such as the effects of a fly landing) on an electronic skin or record a human pulse wave while facilitating conformal attachment to a soft, curved surface (e.g., human skin). To achieve a high degree of sensitivity in the low-pressure regime (＜10 kPa), unconventional technologies-such as microstructured polydimethyl-siloxane (PDMS) in capacitive and triboelectric sensors, Pt-coated interlocking nanofibers in piezoresistive sensors, or aligned arrays of electrospun poly(vinylidenefluoride-co-trif-luoroethylene) nanofibers in piezoelectric sensors-must be pursued.