Fig. 4: Thermal 2D-to-2D shape transformation of the assembled different 2D LCE structures.

Assembled 2D LCE structures a–c with all surfaces glued together and d, e with a non-glued surface (marked with the blue line), transforming into different shapes. (i) Schematic of the programmed director fields. (ii) Top-view photos of the 2D LCE structures at 30 °C. (iii) Actuated, shape-morphed 2D structures at 200 °C.