Influence of Crystallization Time on Energy-Storage Density and Efficiency of Lead-Free Bi_0.5(Na_0.8K_0.2)_0.5TiO₃ Thin Films

Figure 1

Two-dimensional (2D) and three-dimensional (3D) AFM images of BNKT films: (a) T10, (b) T20, (c) T40, (d) T60, (e) FE-SEM micrographs of sample T60, and (f) cross-sectional SEM image of sample T60.

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