Environmentally benign Bi3.25La0.75Ti3O12 (BLTO) thin film capacitors were prepared by a cost effective chemical solution deposition method for high energy density storage device applications. Low annealing temperature annealed BLTO thin films showed very slim hysteresis loops with high maximum and small remnant polarization values. Increasing the applied electric field to 2040 kV/cm, the optimized BLTO thin films show a high recoverable energy density of 44.7 J/cm3 and an energy efficiency of 78.4% at room temperature. Additionally, the BLTO thin film capacitors exhibited excellent fatigue endurance after 4 × 108 cycles and a good thermal stability up to 140 °C, proving their strong potential for high energy density storage and conversion applications.

中文翻译：

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用于储能应用的 Bi3.25La0.75Ti3O12 薄膜电容器

对环境友好的 Bi3.25La0.75Ti3O12 (BLTO) 薄膜电容器是通过具有成本效益的化学溶液沉积方法制备的，用于高能量密度存储设备应用。低退火温度退火的 BLTO 薄膜显示出非常细的磁滞回线，具有很高的最大和很小的剩余极化值。将外加电场增加到 2040 kV/cm，优化后的 BLTO 薄膜在室温下显示出 44.7 J/cm3 的高可恢复能量密度和 78.4% 的能量效率。此外，BLTO 薄膜电容器在 4 × 108 次循环后表现出优异的疲劳耐久性和高达 140 °C 的良好热稳定性，证明其在高能量密度存储和转换应用中的强大潜力。