Fig. 5: Strain-sensing performance of the CATSS.

a ΔR/R0 upon the applied strains for CATSS after 171% strain stretching. b Response of CATSS to cyclic loadings at small strains (1 and 2%). c Time response of CATSS. Insets: close up of the selected areas. d 10-Step strain cycles of strains at 25, 50, 75, and 100%. e Hysteresis of CATSS under different strains. f Bending strain response of CATSS. g ΔR/R0 of CATSS to cyclic bending loading over 400 cycles. h Long-term stability test of a typical CATSS for 2000 stretching-releasing cycles toward the strain variation from 0 to 20%. Insets: close up of the selected areas