The temperature variation of the PZT ceramics sample due to electrocaloric effect for external electric field change of 1kV/mm is not more then 3 K .
Electrocaloric effect in some perovskite ferroelectric ceramics and multilayer capacitors.
26] investigated the electrocaloric effect
of the P(VDF-TrFE-CFE) terpolymer (62.
We will show that by enhancing the polarization "randomness" in the ferroelectric polymers, a large electrocaloric effect
(ECE) can be obtained in these polymers.
Their topics include measuring nucleation and growth processes, analyzing the evolution of surface roughness, modeling thin film deposition processes based on real-time observation, phase transition in colloidal crystal thin films, thin film growth for thermally unstable noble-metal nitrides by reactive magnetron sputtering, electronic properties and adsorption behavior of thin films with polar character, understanding substrate plasticity and buckling of thin films, the electrocaloric effect
in ferroelectric polymer films, and network behavior in thin films and nanostructure growth dynamics.
Examples include electron tunneling, the electrocaloric effect, and the thermoelastic effect.
Cooling by the electrocaloric effect (ECE) employs the adiabatic temperature change of specific materials under the application of an electric field.
The larger the electrocaloric effect of the material the more cooling power it has.
The electrocaloric effect
(ECE) in ferroelectric polymer films
Several solid-state cooling phenomena are the subject of active research including the Peltier effect, electron tunneling, the magnetocaloric effect, the electrocaloric effect
, and the thermoelastic effect.
The DOE, under a Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Phase II Recovery Act Program, awarded the grant to SPS for research and development based on recent breakthroughs in electrocaloric effect (ECE).
The electrocaloric effect is the change in the entropy and temperature in a dielectric material induced by an applied voltage.