“…[1][2][3][4][5] Instead of conventional ceramics, polymer-based ceramic composites play an important role in precisely twisting according to the requirements of flexible electronics devices. Due to the high dielectric permittivity (varied from 10 2 to 10 5 ), various ceramic materials such as strontium titanate, 6,7 barium strontium titanate, 8,9 barium titanate, 10,11 lead zirconate titanate, 12,13 and many other ceramics [14][15][16][17][18][19][20][21] are commonly used as filler materials to develop soft and flexible polymer-ceramic hybrids/ composites for high-efficiency capacitor or energy storage applications. Some dielectric ceramics exhibit ferroelectric or relaxor behavior and a strong piezoelectric effect.…”