... at room temperature before and after the heating Please cite this article in press as: T Fu, Research on gas- sensing properties of lead sulfide-based sensor for detection of NO2 and NH3 at room ... Fu, Research on gas- sensing properties of lead sulfide-based sensor for detection of NO2 and NH3 at room temperature, Sens Actuators B: Chem (2009), doi:10.1016/j.snb.2009.03.075 G Model SNB-11469; ... novel porous silicon sensor for detection of sub-ppm NO2 concentrations, Sens Actuators B 77 (2001) 62–66 [16] J Suhiro, G Zhou, M Hara, Fabrication of a carbon nanotubes-based gas sensor using dielectrophoresis...