Open AccessInvestigation of time and frequency characteristics of the electrocaloric response in ferroelectric materials
Author(s) -
A. S. Anokhin,
A. V. Es’kov,
O. V. Pakhomov,
А. А. Семенов,
E. Lähderanta,
Alexander Tselev,
A. L. Kholkin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1697/1/012195
Subject(s) - electrocaloric effect , duty cycle , materials science , ferroelectricity , converters , signal (programming language) , work (physics) , duty , voltage , optoelectronics , electrical engineering , computer science , thermodynamics , physics , engineering , dielectric , programming language , philosophy , theology
Recently, much attention has been paid to the development of new microminiature solid-state cooling devices and heat energy converters based on the electrocaloric effect. But researchers pay little attention to aspects of the electrocaloric effect associated with its time and frequency characteristics. These phenomena must be taken into account when developing highly efficient thermodynamic cycles for solid-state cooling devices. In this work, we conducted an experimental study of the dependence of the electrocaloric response of a ferroelectric sample on the period and duty cycle of the control signal was studied. It was demonstrated, that value of electrocaloric response in studied ceramics may vary by more then 15% depending on period and duty cycle of electric pulses.