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]0.98O3-xZnO ((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.
Original language | English |
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Pages (from-to) | 7820-7827 |
Number of pages | 8 |
Journal | Journal of Materials Chemistry C |
Volume | 8 |
Issue number | 23 |
DOIs | |
Publication status | Published - 21 Jun 2020 |