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High pyroelectric performance due to ferroelectric–antiferroelectric transition near room temperature

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Abstract

Pyroelectric materials have a huge market in daily life applications and high pyroelectric performances near room temperature are highly desired. Here we report high pyroelectric performance with adjustable peak performance temperature of 29–46.2 °C in the (1 − x)Pb0.99Nb0.02[(Zr0.57Sn0.43)0.937Ti0.063]0.98O3xZnO ((1 − x)PNZST–xZnO) composite. The x = 0.1 composite has a peak pyroelectric coefficient of 1053.9 × 10−4 C m−2 K−1 and figures of merit of Fv = 1249.4 × 10−2 m2 C−1, Fd = 876.3 × 10−5 Pa−1/2, and Fi = 832.7 × 10−10 m V−1 at around 39 °C. It is found that a robust room temperature ferroelectric state is realized in antiferroelectric PNZST due to ZnO-induced internal strain. The thermal-driven ferroelectric to antiferroelectric transition leads to high pyroelectric performance. This work provides a promising material candidate for high performance pyroelectric devices.

Graphical abstract: High pyroelectric performance due to ferroelectric–antiferroelectric transition near room temperature

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Article information


Submitted
24 Mar 2020
Accepted
29 Apr 2020
First published
29 Apr 2020

J. Mater. Chem. C, 2020, Advance Article
Article type
Paper

High pyroelectric performance due to ferroelectric–antiferroelectric transition near room temperature

L. Li, H. Liu, R. Wang, H. Zhang, H. Huang, M. Lu, S. Zhang, S. Jiang, D. Wu and Y. Chen, J. Mater. Chem. C, 2020, Advance Article , DOI: 10.1039/D0TC01511C

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