Fig. 4: Performance of LIG- and F-LIG-based strain sensors.
a Relative resistance variation of LIG, F-LIG with a high degree of defect healing (F-LIG-H), and F-LIG with a moderate degree of defect healing (F-LIG-M) during the cyclic bending test. b ΔR/R0 value of LIG, F-LIG-H, and F-LIG-M sensors under different bending angles. c Relative resistance variation of F-LIG-H/polydimethylsiloxane (PDMS) stretchable sensors at different strain loadings. d ΔR/R0-to-strain relationship of LIG/PDMS and F-LIG-H/PDMS. The gauge factor (GF) was determined for LIG/PDMS as GF, while for F-LIG-H/PDMS it was determined as GF1 and GF2 in different loading regions. e Stability test of F-LIG-H/PDMS under 8% strain. Insets are enlarged views of the relative resistance variation during time intervals of 2395 – 2495 s and 11245 to 11345 s. f Relative resistance variation of F-LIG-H/PDMS under 8% strain with different stretching rates.
