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Micro and Nano Systems Letters
Fig. 4 | Micro and Nano Systems Letters

Fig. 4

From: Improved recovery of NO2 sensors using heterojunctions between transition metal dichalcogenides and ZnO nanoparticles

Fig. 4

I–V characteristics of a MoS2-, MoS2/ZnO-, b WSe2- and WSe2/ZnO-based gas sensor in air environment at 100 °C. c Gas sensing response of transition metal dichalcogenides (TMDC)-based gas sensor to 10 ppm NO2 gas at 100 °C. The part where the conductivity decreased at the early stage of NO2 exposure is outlined by the blue dotted line. d Recovery rate per cycle of MoS2- and MoS2/ZnO-based gas sensor. e Recovery rate per cycle of WSe2- and WSe2/ZnO-based gas sensor

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