Highly Sensitive Piezoelectric E‐Skin Design Based on Electromechanical Coupling Concept

Stretchable electronic skin (e-skin) paves the way for applications that exceed scope of intrinsic rigid devices and hard-to-stretch sensors. The broad application range flexible e-skins benefits from device architectures can simultaneously provide mechanical flexibility superior sensitivity. Classic fractal design provides a simple architecture to achieve desired through structural improved wear comfort, but at expense sensor In this study, proposed method addresses trade-off between stretchability sensitivity in design. A high-sensitivity e-skin is obtained by eliminating effect negative charge on output applying concept electromechanical coupling. This designing with high validated delicate patterning functional materials. Further, human speech signals are acquired integration signal processing circuits, pattern recognition realized using machine learning. stretchable an enhanced gauge factor illustrates wider improving