Visible-Light-Activated Response Originating from Carrier-Mobility Modulation of NO Gas Sensors Based on MoS Monolayers.

Some gas sensors exhibit significant increases in their sensitivity and response/recovery rates under light illumination. This photoactivation of the gas response is considered a promising alternative to conventional thermal activation, which requires high power consumption. Thin layers of molybdenum disulfide (MoS) are known to exhibit an effective photoactivated gas response under visible light.