One of the primary challenges in gas detection at RT is achieving rapid sensor recovery after the evacuation of the analyte. This issue is somewhat less problematic for MOS sensors, as they typically operate at temperatures around 400 °C. However, at RT, even the physisorption of small molecules can require extended periods for desorption. In response to this challenge, researchers have demonstrated that rapid recovery can be achieved by employing gate bias and light illumination techniques In this context, all Mo-bearing TMDs offer distinct advantages. However, among them, MoTe 2 appears to hold the greatest potential for detecting NO2 at room temperature. This is due to its narrow bandgap, which also makes it well-suited for recovery enhancement through illumination.