研究目的
Investigating the energy storage properties in (1-x)BaTiO3-xBi3.25La0.75Ti3O12 thin films for high-performance lead-free film dielectric capacitors.
研究成果
The 0.6BaTiO3-0.4Bi3.25La0.75Ti3O12 thin film exhibits excellent energy storage performance, including an ultrahigh energy storage density of 61.1 J/cm3 and efficiency of 84.2%, along with outstanding fatigue endurance and thermal stability, making it a promising candidate for lead-free dielectric capacitors in modern electronic devices.
研究不足
The study focuses on the energy storage properties of BaTiO3-Bi3.25La0.75Ti3O12 thin films, with potential limitations in scalability and integration into practical devices. Further optimization may be required for commercial applications.
1：Experimental Design and Method Selection:
The study involved the preparation of (1-x)BaTiO3-xBi
2：25La75Ti3O12 thin films by chemical solution deposition (CSD) processing to investigate their energy storage properties. Sample Selection and Data Sources:
Thin films were deposited on Pt/Ti/SiO2/Si substrates with varying compositions (x =
3：0, 2, 4, 6, and 8). List of Experimental Equipment and Materials:
Precursor solutions were prepared using barium (III) acetate, bismuth (III) acetate, lanthanum (III) acetate, and tetrabutyl titanate dissolved in propionic acid solvent, with ethanolamine added for stabilization.
4：Experimental Procedures and Operational Workflow:
Thin films were spin-coated, baked, pyrolyzed, and crystallized at 650 °C for 30 min in air.
5：Data Analysis Methods:
Crystal structures were determined using XRD, surface and cross-sectional morphologies were detected using AFM and FE-SEM, and electrical properties were measured using a precision LCR meter and Radiant Technology for ferroelectric hysteresis loop curves.
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