Synthetic Diamond film based Hydrogen Sulfide Sensor
Hydrogen sulfide is a toxic and flammable gas, usually generated in sewages, swamps, mines etc, which necessitates the detection of the gas in sub ppm level as it reacts strongly with living tissues and attacks the central nervous system. Higher concentration or prolonged exposure of H2S paralyses the olfactory system. We have exploited surface conductivity of hydrogen terminated diamond films to detect trace levels (<1ppm) of hydrogen sulfide at room temperature.
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