H2S sensing in the ppb regime with zinc oxide nanowires
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文摘
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ZnO nanowires were grown by CVD and deposited on a contact structure.

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The H2S-sensing properties of the NWs were investigated by electrical measurements.

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The role of the flushing gas after the exposure of the sensor to H2S was studied.

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Oxygen is crucial for the sensing mechanism and necessary to reset the sensor.

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A very low detection limit of only 50 ppb H2S was achieved.

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