Pressure Sensitive Sensors Based on Carbon Nanotubes, Graphene, and Its Composites

Table 2

Sensitivity and percentage of decrease in the impedance for pure CNT, pure graphene, and CNT-graphene composite sensors.

Sensor type	External applied pressure; (kNm^−2)	Percentage decrease in impedance (%)	Sensitivity (S); (m^2/kN)
Pure CNT	0 to 0.183	72.85	3.98
Pure graphene	0 to 0.183	48.33	2.64
CNT-graphene composite	0 to 0.183	64.23	3.53