Aerodynamic Levitation Synthesis of BaTiO3 Relaxor Ferroelectrics for High-Performance Energy Storage

초록

The demand for high-energy-density materials is becoming increasingly critical, particularly for advanced energy storage applications. Relaxor-ferroelectrics are promising candidates due to their ability to exhibit large dielectric constants and high energy storage densities, especially near the Morphotropic Phase Boundary (MPB). However, conventional fabrication methods often face challenges such as uncontrolled nucleation, leading to phase inhomogeneity and reduced material performance. This study introduces a novel approach using aerodynamic levitation to fabricate BiFeO₃-based relaxor-ferroelectrics. By processing the material in a levitated state, this method effectively suppresses nucleation during cooling, enabling precise control over phase distribution. The technique facilitates the formation of a highly homogeneous melt, followed by rapid solidification, promoting the formation of dense non-equilibrium phases that enhance relaxor behavior. Our findings demonstrate that nucleation suppression enables phase distribution control even in materials with identical compositions, leading to improved energy storage performance. This study addresses the limitations of conventional fabrication techniques and provides new insights into optimizing relaxor-ferroelectrics for next-generation energy storage technologies.