Nanostructured CeO2 ultrathin film deposited by the Langmuir Blodgett technique for highly sensitive and specific detection of sub ppm level NO2 gas at room temperature

Room temperature NO 2 sensor based on ultrathin CeO 2 deposited by LB technique was fabricated. High sensing and selectivity to ppb level NO 2 gas was observed due to large number of surface adsorbed oxygen species on nanostructure CeO 2 surface.