fig3

Figure 3. Sensing properties of the SNIPS with optimized configuration. (A) Dynamic response of relative capacitance variation loading with different pressures; (B) The LOD test of the SNIPS; (C) Transient response of relative capacitance variation to an applied pressure of 50 kPa. The insets show the response/relaxation time of SNIPS; (D) Long-term stability tested by compression and release over 5,000 cycles under external pressure of 250 kPa. LOD: Limit of detection; SNIPS: stretchable all-nanofiber iontronic pressure sensor.