Fig. 5

(a–d) Current, (e) response characteristics based on the P3HT ratio at a NO2 gas concentration of 100–20-ppm and (f) responses at 100-ppm NO2 gas.

(a–d) Current, (e) response characteristics based on the P3HT ratio at a NO2 gas concentration of 100–20-ppm and (f) responses at 100-ppm NO2 gas.