Work

Electrocaloric and pyroelectric properties of 0.6Ba0.85Ca0.15Zr0.10Ti0.90O3 –0.4BaTi0.89Sn0.11O3 ceramics

Year: 2024

Type: article

Abstract: Ferroelectric materials are gaining considerable attention for energy storage, electrocaloric and pyroelectric energy harvesting applications. In particular, Ba 0.85 Ca 0.15 Zr 0.10 Ti 0.90 O 3 (BCZT) and BaTi 0.89 Sn 0.11 O 3 (BTSn) ceramics are among the best-studied lead-free BaTiO 3 -based ferroelectrics with high piezoelectric and electrocaloric properties. In this work, we prepared a 0.6BCZT–0.4BTSn solid solution. The structural, energy storage, electrocaloric, and pyroelectric properties are investigated. An energy density of 61.4 mJ cm -3 with a high energy efficiency of 82.4 % at 90 °C is achieved. The electrocaloric temperature change, which is determined indirectly via the Maxwell relation, is 0.5 K at 86 °C and 25 kV cm -1 . It is stable over a wide temperature range of around 65 °C and has a coefficient of performance of 15. Moreover, a pyroelectric energy density of 124.1 mJ cm -3 is achieved. The results of this study show that the 0.6BCZT–0.4BTSn ceramics is a multifunctional material with energy storage, electrocaloric and pyroelectric properties.

Source: Informacije MIDEM - Journal of Microelectronics Electronic Components and Materials

DOI: 10.33180/infmidem2024.401

Author: Soukaina Merselmiz

Institution: Jožef Stefan Institute

Language: English

Topic: Ferroelectric and Piezoelectric Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $215