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- W1989972938 abstract "To improve the sensitivity to odour and the odour selectivity, the effect of calcination temperature, crystallite size and surface area have been examined for SnO2 thick films. The sensitivity and the selectivity depended strongly on the crystallite size (or calcination temperature), and the optimum crystallite size (or calcination temperature) for the odour sensor is 53 nm (or 1200 °C). The odour selectivity to odourless gases is improved by lead-oxide addition to an SnO2 thick film calcined at 1200 °C. The effects of various metal-oxide coating layers on lead-oxide-added SnO2 thick films have also been examined. The layers are effective in characterization of each odour sensor. It seems that the metal oxide functions as a filter through the coating layer and as a catalyst at the interface to the films. The present group of sensors might facilitate the construction of an odour-discrimination system utilizing the different odour selectivities of plural sensors." @default.
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- W1989972938 date "1995-04-01" @default.
- W1989972938 modified "2023-10-02" @default.
- W1989972938 title "Highly sensitive odour sensors using various SnO2 thick films" @default.
- W1989972938 cites W2073841724 @default.
- W1989972938 doi "https://doi.org/10.1016/0925-4005(95)85171-2" @default.
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