A Review of Carbon Nanotubes-Based Gas Sensors

Figure 10

(a) The time dependence of the TEP response of a SWNT thin film to successive exposure to vapours of water and alcohol molecules (C_nH_2n+1OH; n = 1–4) at 40^∘C; (b) the time dependence of the normalized four-probe resistance response of an SWNT thin film to successive exposure to vapours of water and alcohol molecules at 40^∘C [42].

(a)

(b)