Boosting the energy storage performance of BCZT-based capacitors by constructing the Schottky contact——Inspired by the “Tian Ji’s Strategy for Horse Racing”

Due to the combination of interfacial polarization and depolarization, the energy density of a BCZT-based lead-free ferroelectric reached 8.03 J cm −3 at only 425 kV cm −1 . A high energy density with extremely low energy consumption was achieved.