Effect of Varying the Semiconducting/Metallic Tube Ratio on the Performance of Mixed Single-Walled Carbon Nanotube Network Gas Sensors

Figure 3

Device resistance as a function of NH₃ concentration for the unenriched 66%, 90% enriched, and 99% enriched SWCNT-network sensors. The insets represent the characteristic curves to different NH₃ concentration.

(a) Unenriched 66% SWCNT

(b) 90% enriched SWCNT

(c) 99% enriched SWCNT