Pyroelectric conversion cycle of vinylidene fluoride‐trifluoroethylene copolymer

Universal Ferroelectric Switching Dynamics of Vinylidene Fluoride-trifluoroethylene Copolymer Films

In this work, switching dynamics of poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymer films are investigated over unprecedentedly wide ranges of temperature and electric field. Remarkably, domain switching of copolymer films obeys well the classical domain nucleation and growth model although the origin of ferroelectricity in organic ferroelectric materials inherently differs ...

Aluminum doping of poly(vinylidene fluoride with trifluoroethylene) copolymer

INTEGRATED PYROELECTRIC SENSOR BASED ON VDF/TrFE COPOLYMER

This paper presents an integrated pyroelectric sensor based on a Vinylidene Fluoride TriFluoroEthylene (VDF/TrFE) copolymer. A silicon substrate that contains FET readout electronics is coated with the VDF/TrFE copolymer film using a spin-coating technique. On-chip poling of the copolymer has been applied using a stepwise poling at room temperature. An array of 3x1 pyroelectric sensor has been ...

Poly(vinylidene fluoride)/nickel nanocomposites from semicrystalline block copolymer precursors.

The fabrication of nanoporous poly(vinylidene fluoride) (PVDF) and PVDF/nickel nanocomposites from semicrystalline block copolymer precursors is reported. Polystyrene-block-poly(vinylidene fluoride)-block-polystyrene (PS-b-PVDF-b-PS) is prepared through functional benzoyl peroxide initiated polymerization of VDF, followed by atom transfer radical polymerization (ATRP) of styrene. The crystalliz...

Measurement of the pyroelectric coefficient of poly„vinylidene fluoride... down to 3 K

The temperature dependence of the pyroelectric coefficient p8 of polyvinylidene fluoride (PVF2) was measured from 307 K to the previously unexplored region of 3 K. The measurements were performed on a film of oriented (b-phase! PVF2 by monitoring its surface charge response to quasistatic heating and cooling transients. The data exhibit a pure cubic temperature dependence from 3 to 6 K with no ...