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- W4313447214 abstract "Antiferroelectric materials are widely used in industry owing to their outstanding energy storage properties, excellent fatigue resistance, and satisfactory stability. In this study, Pb1–3x/2LaxHfO3 (abbreviated as PLH-x) antiferroelectric nanofilms were fabricated using the sol–gel method, and their microstructure, antiferroelectric, and energy storage properties were investigated. The PLH-x films exhibited an orthogonal perovskite structure and good crystallinity. La doping altered the long-range ordering of the film’s lattice structure, generating higher breakdown field strengths and finer hysteresis lines. The PLH-0.01 film showed the best energy storage performance with a recoverable energy density (Wrec) of 26.74 J/cm3 and an energy storage efficiency (η) of 68.35%. After 108 test cycles, Wrec and η decreased by only 3.6 and 2.3%, respectively, demonstrating the outstanding fatigue resistance and stability of the PLH-0.01 film. Moreover, the PLH-0.01 film exhibited good temperature stability and excellent frequency stability. Thus, the energy storage and fatigue characteristics of PLH-x films were considerably improved through La doping. These remarkable improvements confirm the potential of using the PLH-x films for preparing dielectric capacitors." @default.
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- W4313447214 date "2022-12-20" @default.
- W4313447214 modified "2023-10-15" @default.
- W4313447214 title "Enhancement of Energy Storage Density and Efficiency of PbHfO<sub>3</sub> Doped with La Antiferroelectric Thin Films" @default.
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- W4313447214 doi "https://doi.org/10.1021/acsaem.2c02584" @default.
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