Research Article

Influence of Crystallization Time on Energy-Storage Density and Efficiency of Lead-Free Bi0.5(Na0.8K0.2)0.5TiO3 Thin Films

Figure 4

P–E ferroelectric hysteresis loops of BNKT films with different crystallization times at the same applied electric field of 400 kV/cm.

(a)
(b)
(c)
(d)