Pyroelectric Energy Harvesting Potential in Lead-Free BZT-BST Ceramics

Abstract

In the present work, pyroelectric energy harvesting potential in 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Sr0.3)TiO3 (BZT-BST) ceramics is studied. The pyroelectric coefficient was obtained by the Byer–Roundy method. The pyroelectric figures of merit for energy harvesting applications are also estimated. The pyroelectric performance in terms of measuring voltage is obtained by subjecting the material to thermal fluctuations. To increase the energy harvesting potential from waste thermal/heat energy to electrical energy, the synchronized switch harvesting on inductor (SSHI) method is used. The SSHI technique findings reveal that this concept can considerably enhance the amount of power extracted from the pyroelectric materials. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.