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Creators/Authors contains: "Pan, Hao"

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  1. ; ; ; ; ; ; ; ; ; ; et al ( , Science)
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  2. ; ; ; ; ( , ACS Synthetic Biology)
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    Dielectric capacitors with ultrahigh power densities are fundamental energy storage components in electrical and electronic systems. However, a long-standing challenge is improving their energy densities. We report dielectrics with ultrahigh energy densities designed with polymorphic nanodomains. Guided by phase-field simulations, we conceived and synthesized lead-free BiFeO 3 -BaTiO 3 -SrTiO 3 solid-solution films to realize the coexistence of rhombohedral and tetragonal nanodomains embedded in a cubic matrix. We obtained minimized hysteresis while maintaining high polarization and achieved a high energy density of 112 joules per cubic centimeter with a high energy efficiency of ~80%. This approach should be generalizable for designing high-performance dielectrics and other functional materials that benefit from nanoscale domain structure manipulation.
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  4. ; ; ; ; ; ; ; ; ; ; et al ( , Cell)
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