https://doi.org/10.1140/epjp/s13360-025-06548-x
Regular Article
Optimizing strategy of high efficient pyroelectric energy conversion
Key Laboratory of Ministry of Education for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, Hubei University, 430062, Wuhan, China
a
20041507@hubu.edu.cn
b
rkpan@hubu.edu.cn
Received:
19
February
2025
Accepted:
9
June
2025
Published online:
27
June
2025
The pyroelectric effect in ferroelectric materials can turn heat changes into electricity. When temperature fluctuates, these materials generate electric charge, creating a thermal–electric cycle. This process converts wasted heat energy into usable power, offering a way to harvest energy from temperature variations in the environment. In this paper, the conversion process is theoretically derived by solving the temperature-dependent hysteresis effect of polarization versus electric field. The mechanisms of optimal conditions are analyzed from two aspects: polarization–temperature relation and the field-induced polarization. The rationality of the theoretic formulae is verified by comparing the results of numerical simulation and the experimental results. The theoretic results indicate that the optimal Curie temperature should be modulated from about 1/2–1/3 to the high temperature side, and the optimal high and low electric fields are full saturated value and zero, respectively.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
