作者: K. Sahner , R. Moos , M. Matam , M. Post
DOI: 10.1109/ICSENS.2003.1279078
关键词: Hydrogen 、 Atmospheric temperature range 、 Analytical chemistry 、 Strontium 、 Hydrocarbon 、 Gaseous diffusion 、 Propane 、 Thin film 、 Perovskite (structure) 、 Materials science
摘要: Hydrocarbon sensitivity of a series p-type conducting strontium titanate-ferrate, Sr(Ti/sub 1-x/Fe/sub x/)O/sub 3-/spl delta// conductometric sensors was investigated It shown that in the temperature range between 350/spl deg/C and 450/spl deg/C, resistance thick film thin devices changes considerably presence propane. The sensor response is rapid reversible. However, cross interference experiments show different behaviour when exposed to hydrogen. A model for this based on differential gas diffusion into material proposed.