fig5

Figure 5. Electrical microstructures of BNT-BT-xBS ceramics. (A) Impedance profiles at 530 °C of x = 0, 0.10; (B) Activation energy (E_a) of x = 0, 0.10; (C) UV-Vis absorption spectrum of x = 0, 0.10 with calculated band gap (E_g); (D and E) Spectroscopic plots of Z'' and M'' spectra at 530 °C of x = 0 and 0.10; (F) Weibull distribution of the E_B for x = 0, 0.10. BNT: Bi_0.5Na_0.5TiO₃; BT: BaTiO₃; BS: BaSnO₃; UV-Vis: ultraviolet-visible.