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- W3149444925 abstract "Large pyroelectric and energy harvesting properties have been attracting increasing attentions due to the practical applications in infrared detectors and energy harvesting technologies. Ferroelectric-antiferroelectric (FE-AFE) phase transitions are usually accompanied by a sharp drop in polarization, which will lead to excellent pyroelectric properties and energy harvesting density. Therefore, FE-AFE phase boundary design is an effective strategy to develop new pyroelectric materials. In this paper, Pb(Lu1/2Nb1/2)O3-PbTiO3 (PLN-PT) single crystals with FE-AFE phase transitions were obtained by molten salt growth method. The temperature-induced FE-AFE phase transition was verified by temperature-dependent macrodomain structure, DSC curves and dielectric properties. Obviously, PLN-PT crystals display excellent peak pyroelectric coefficient (∼6.8 μC/(cm2·K)) with a maximum depolarization temperature of 118 °C. Meanwhile, the pyroelectric energy harvesting density is as high as 2.62 J/cm3, which is much higher than other pyroelectric materials. The results reveal that the PLN-PT crystal is a promising candidate for infrared detectors and energy harvesting devices." @default.
- W3149444925 created "2021-04-13" @default.
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- W3149444925 date "2021-12-01" @default.
- W3149444925 modified "2023-10-14" @default.
- W3149444925 title "Ultrahigh pyroelectric effect and energy harvesting density of Pb(Lu1/2Nb1/2)O3–PbTiO3 crystals induced by FE-AFE phase transition" @default.
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- W3149444925 doi "https://doi.org/10.1016/j.jre.2021.03.019" @default.
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