School of Mathermatics and Physics, Handan College , Handan 056005, China.
Peter Grünberg Institute and Ernst Ruska Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich , D-52425 Jülich, Germany.
ACS Appl Mater Interfaces. 2017 May 24;9(20):17096-17101. doi: 10.1021/acsami.7b03263. Epub 2017 May 9.
A large energy storage density (ESD) of 30.4 J/cm and high energy efficiency of 81.7% under an electrical field of 3 MV/cm was achieved at room temperature by the fabrication of environmentally friendly lead-free BaZrTiO epitaxial thin films on Nb-doped SrTiO (001) substrates by using a radio-frequency magnetron sputtering system. Moreover, the BZT film capacitors exhibit great thermal stability of the ESD from 16.8 J/cm to 14.0 J/cm with efficiency of beyond 67.4% and high fatigue endurance (up to 10 cycles) in a wide temperature range from room temperature to 125 °C. Compared to other BaTiO-based energy storage capacitor materials and even Pb-based systems, BaZrTiO thin film capacitors show either high ESD or great energy efficiency. All of these excellent results revealed that the BaZrTiO film capacitors have huge potential in the application of modern electronics, such as locomotive and pulse power, in harsh working environments.
通过使用射频磁控溅射系统在 Nb 掺杂 SrTiO（001）衬底上制备环保无铅 BaZrTiO 外延薄膜，在室温下实现了 30.4 J/cm 的大储能密度（ESD）和 3 MV/cm 电场下 81.7%的高能效。此外，BZT 薄膜电容器在很宽的温度范围内（从室温到 125°C）表现出优异的 ESD 热稳定性，从 16.8 J/cm 到 14.0 J/cm 的效率超过 67.4%，并且具有高疲劳耐久性（高达 10 个循环）。与其他基于 BaTiO 的储能电容器材料甚至 Pb 基系统相比，BaZrTiO 薄膜电容器表现出高 ESD 或高能量效率。所有这些优异的结果表明，BaZrTiO 薄膜电容器在现代电子学中的应用，如机车和脉冲功率，在恶劣的工作环境中具有巨大的潜力。
