Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9700909 | Sensors and Actuators B: Chemical | 2005 | 5 Pages |
Abstract
We fabricated a CuO-SnO2 composite thin film for hydrogen sulfide (H2S) gas sensing. The CuO-SnO2 sensing film was prepared by simple process steps. Firstly a metallic Cu/Sn double layer was deposited by thermal evaporation and then the double layer was oxidized in O2 ambient furnace to obtain CuO-SnO2 composite thin film. The sensing properties of the film to H2S gas were measured at the operating temperature of 200 °C. The film showed more than 90% of relative resistance change to H2S gas of 1 ppm at the operating temperature and had a good selectivity to H2S gas.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Jeong-Min Lee, Byeong-Ui Moon, Chang-Hyun Shim, Bong-Chull Kim, Myeoung-Bok Lee, Duk-Dong Lee, Jong-Ho Lee,