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Piezoelectric polymeric nanofibers, such as P(VDF-TrFE), are promising nanostructures for sensing/actuation applications where flexibility of the component is required, for example soft robotics, conformal sensors, and energy harvesting devices. A challenge in polymeric piezoelectric materials is that their electromechanical coupling efficiency must be improved to approach that of bulk piezo ceramics...
The electromechanical coupling behavior in piezoelectric polymers strongly depends on their morphology. The electromechanical coupling is defined as the conversion between electrical energy and mechanical energy in piezoelectric materials. Geometry (nanofibers, films, etc.) as well as fabrication methods, and post-processing affect crystallinity, orientation, and size of the crystallites, and alignment...
Piezoelectric polymers (PVDF and its co-polymers) in film and nanofiber forms are increasingly used for sensing, actuation and energy harvesting. Given the semi-crystalline structure of these polymers, their electromechanical coupling behavior changes with thermomechanical processing. This article reports on the evolution of the mechanical properties, piezoelectric properties and morphology of P(VDF-TrFE)...
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