Fig. 2.

Strain-responsive performances of the LIG sample. (a) the strain values of the sample at the tensile stresses of 0–15% and the corresponding GF value. (b) The response time and the recovery time of the sample to a stress of 5% at the velocity of 500 m/s. (c) The I−V curves of the sample with strain. (d) Comparison of the cyclic response for the sample under different strains of 1, 2, 5, 10, and 15%. (e) The relative resistance of the sample at 5% repeated tensile-release cyclic strain. (f) Cycling performance of the sample for 1000 cycling tests under cyclic tensile loading and unloading of 10%. (g) Magnified picture of the cycling test in (f), showing the stability of the sample. (h) Initial resistance change curve of LIG samples at different laser power.