Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1463562 | Ceramics International | 2012 | 8 Pages |
Abstract
Semiconducting oxide gas sensors based on La0.8Sr0.2Fe1−xCuxO3 (x = 0, 0.05, 0.10) (LSF, LSFC05, and LSFC10, respectively) were prepared by screen-printing for humidity detection at room temperature.The thick-films were heat-treated at 800, 900 and 1000 °C for 1 h and all the compositions proved to be effective in humidity sensing and presented a good reproducibility between several measurements. However, the best results were obtained with LSFC10 fired at 800 °C which showed a detection limit of 15% relative humidity and a maximum sensor response of about 87%, higher than the previous results. Copper addition to lanthanum strontium ferrites proved to be effective in lowering the sensors’ detection limit.
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Authors
A. Cavalieri, T. Caronna, I. Natali Sora, J.M. Tulliani,