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 …

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

Real‐time and continuous monitoring of physiological signals is essential for mobile health,
which is becoming a popular tool for efficient and convenient medical services. Here, an …

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 …

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

We describe the concept, the fabrication, and the most relevant properties of a piezoelectric-
polymer system: Two fluoroethylenepropylene (FEP) films with good electret properties are …

Polymers with strong piezo-, pyro-, and ferroelectricity are attractive for a wide range of
applications. In particular, semicrystalline ferroelectric polymers are suitable for a large …

A series of cyclic olefin copolymer (COC) based piezoelectrets are fabricated using a carbon
dioxide assisted assembly process followed by direct contact charging. The effects of both …

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 …

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