Antiferroelectric Thin-Film Capacitors with High Energy-Storage Densities, Low Energy Losses, and Fast Discharge Times

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• 作者：Chang Won Ahn ; Gantsooj Amarsanaa ; Sung Sik Won ; Song A Chae ; Dae Su Lee ; Ill Won Kim
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2015
• 出版时间：December 9, 2015
• 年：2015
• 卷：7
• 期：48
• 页码：26381-26386
• 全文大小：363K
• ISSN：1944-8252

文摘

We demonstrate a capacitor with high energy densities, low energy losses, fast discharge times, and high temperature stabilities, based on Pb_0.97Y_0.02[(Zr_0.6Sn_0.4)_0.925Ti_0.075]O₃ (PYZST) antiferroelectric thin-films. PYZST thin-films exhibited a high recoverable energy density of U_reco = 21.0 J/cm³ with a high energy-storage efficiency of 畏 = 91.9% under an electric field of 1300 kV/cm, providing faster microsecond discharge times than those of commercial polypropylene capacitors. Moreover, PYZST thin-films exhibited high temperature stabilities with regard to their energy-storage properties over temperatures ranging from room temperature to 100 掳C and also exhibited strong charge鈥揹ischarge fatigue endurance up to 1 脳 10⁷ cycles.