UV-enhanced exfoliated MoS2/PtSe2 heterostructure for ultra-sensitive NO2 detection at room temperature

Morphological and topographical studies

Figure 1a shows the cross-sectional schematic diagram of the MoS₂/PtSe₂ heterostructure device. Our PCB-bonded prototype gas sensor, where two of the electrodes on the SiO₂/Si substrate are connected with…