fig1

Figure 1. Fabrication of LIG-based strain sensor. (A) Schematic diagram of the preparation of the LIG in a specific pattern; (B) schematic illustration of the fabrication process of the LIG-based stretchable sensor; (C) optical images of LIG in PI film; (D) optical images of the LIG-PDMS composite prepared by transferring LIG from PI to PDMS; (E) the 100× and 1,000× SEM images of LIG.