In this work, we report the usage of micro-cantilever printed silver nanoparticles (AgNP) contact pads for fabrication of ZnO nanowire (NW) Schottky diode-based sensors for detecting CO 2 , CO and NO 2 in ppb range at room temperature. The fabrication process is divided in two phases. In first phase, a ZnO NW mat based sensor is developed by simple drop-casting techniques to first confirm the response of ZnO NWs to the pollutant gases. In the second phase, the sensor is optimised with the help of micro-cantilever printing technique by reducing the channel gap between... Continue reading…