Va. Smyntyna et al., DEPENDENCE OF SENSITIVITY AND REPRODUCIBILITY OF CDS OXYGEN SENSORS, Sensors and actuators. B, Chemical, 19(1-3), 1994, pp. 460-463
The electrical conductance of the CdS-based sensors increased or decre
ased when exposed to CO or SO2 gases, depending on the operation tempe
rature and stoichiometric composition of the film. A correlation betwe
en the IR spectrum and inversion of the chemisorbed complex charge sta
te was observed. This is considered to be a favourable basis for the d
etection of atmospheric pollutants in ambient air, by combination of t
wo sensor systems.