Increased sensitivity and selective capacity of gas sensors based on SnO2−x films exposed to light-emitting diodes

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Effects are described for the increase in sensitivity of thin film gas sensors based on SnO2−x alloyed with Sb and In, with emission by red, yellow, green, and blue light diodes for organic liquid vapors with a volume concentration of less than 10 ppm. An attempt is made to explain this effect on the basis of analyzing aerogenic reactions.

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