Fig. 4: Reliability and cycling stability.
From: Metadielectrics for high-temperature energy storage capacitors
a Temperature-dependent energy storage performance. b Temperature-dependent Fowler–Nordheim barrier height. c AC-field (From 0 to 2 MV·cm−1) and temperature (from 25 to 400 °C) dependence of dielectric constant. All data are normalized to the dielectric constant. d Conduction loss and ferroelectric losses at 400 °C. The error bars in d present the standard deviation of the corresponding data. e Charging–discharging reliability of different films at 400 °C. f Comparison of the energy storage performances of our films with representative dielectrics.
