Fig. 1: Gaussian-preserved shape morphing in plants and man-made microstructures. | Nature Communications

Fig. 1: Gaussian-preserved shape morphing in plants and man-made microstructures.

From: Gaussian-preserved, non-volatile shape morphing in three-dimensional microstructures for dual-functional electronic devices

Fig. 1: Gaussian-preserved shape morphing in plants and man-made microstructures.The alt text for this image may have been generated using AI.

a A conceptual overview of three types of Gaussian-preserved shape morphing in plants (upper panel), man-made reconfigurable microstructures (middle panel), and corresponding SEM images (lower panel): (i) pure bending, (ii) anti-symmetric bending, and (iii) cross-ply bending. Kx and Ky are the curvatures of nanomembranes in x- and y-direction, respectively. W1 and L1 are the width and length of nanomembranes, respectively. W2 and L2 are the width and length of creases, respectively. The scale bar is 50 μm. b The schematic diagram of bending and stretching. Kn is nature curvature. c Geometric change with respect to natural curvature for three types of morphing. Orange line, red line, and green line present pure bending type, anti-symmetric bending type, and cross-ply bending type, respectively. It is observed that both type ii and iii situation allows two minimum in the shape-morphing process. d Potential energy with respect to natural curvature. The energy barrier of type ii and iii can lead to a non-volatile reconfiguration.

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