The coupling of waves between the piezoelectric generators, detectors, and propagating
media is challenging due to mismatch in the acoustic properties. The mismatch leads to the …

In recent years, flexible pressure sensors have caused widespread concern for their
extensive applications in human activity and health monitoring, robotics and prosthesis, as …

Piezoelectrets (or piezoelectric polymer foams) are porous piezoelectric materials with a
wide range of applications particularly sensing. They have been successfully fabricated …

Energy harvesting from vibrations enables power delivery to low-energy electronics for
autonomous devices, wearables, as well as wireless and remote sensing. Here we present …

Piezoelectric energy harvesters (PEHs) have the potential to power low‐power electronic
devices and can advance, self‐powered, autonomous electronics to the next level …

Because of their ability to show ferroelectret behavior when exposed to an external electric
field, cellular polymers have been recently considered for ferroelectret applications. These …

Polymers with electrically charged internal air cavities (ferroelectrets) reveal a pronounced
piezoelectric response and are regarded as soft electroactive multi-functional materials. This …

An electret-based mechanical antenna (EBMA), which can transmit extremely low frequency
(ELF) electromagnetic signals, has the advantages of miniaturization and high transmitting …

In contrast to molecular-dipole polymers, such as PVDF, ferroelectrets are a new class of
flexible spatially heterogeneous piezoelectric polymers with closed or open voids that act as …

Layered fluoroethylenepropylene (FEP) ferroelectret films with cross-tunnel structure were
fabricated from sheets of FEP films by template-patterning followed by a fusion-bonding …