Plasma-Treated CVD Graphene Gas Sensor Performance in Environmental Condition: The Role of Defects on Sensitivity

Figure 4

CVD graphene sensor response to 150 ppm of (a) and 100 ppm of (b) for as-transferred and plasma-treated samples. (c-d) Sequential exposure to both gases for a 30-second-exposed sample.

(a)

(b)

(c)

(d)