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. 2021 Nov 3;21(21):7326. doi: 10.3390/s21217326

Figure 4.

Figure 4

CLSM images (top) and section profiles (bottom) of (a) 200- and (b) 600-nm-thick epitaxial BaTiO3 thin films after transfer to PET sheets. The positions of the section profiles are indicated by arrows on the left-hand sides of the images. From both the images and profiles, the giant wrinkles with micrometer-order height can be clearly observed.