Figure 6. Stability in energy-storage performance for BNT-BT-0.1BS ceramics. (A and B) frequency-, (C and D) cycling number- and (E and F) temperature-dependent unipolar P-E curves and corresponding Wrec and η at 40 kV·mm-1. BNT: Bi0.5Na0.5TiO3; BT: BaTiO3; BS: BaSnO3.