Fig. 3: Performances of the sensor unit based on SCNs/PDMS composite.
From: High-density, highly sensitive sensor array of spiky carbon nanospheres for strain field mapping
a Resistance and gauge factor of the strain sensor versus the applied strain. b The gauge factor and maximum stretchability of SCNs based sensors (red star) as compared with previously reported crack (blue), contact (yellow), percolation (wine red) sensors11,12,13,14,15,16,17,42,43,44,49,50,51,52,55,56,57,67,68,69. c R/R0 (Resistance change) curves of SCNs/PDMS sensor under different voltages and strains as compared with ohmic response. d Resistance as a function of the applied strain for sensors fabricated with CB (carbon black), CNT (carbon nanotube), and SCNs (spiky carbon nanospheres) as conductive materials. e The logarithm of the resistance value (lnR) experimentally obtained from the sensors fabricated with SCNs and the theoretical fitting curves based on the proposed model. f R/R0 (Resistance change) of SCNs/PDMS sensor unit during 5000 stretch and release cycles under 10% strain, inset shows enlarged view of the recorded signals. Source data are provided as a Source Data file.
