A Schematic Illustration of the Gas Sensor Device Based on the Hybrid Nanorod Arrays (IMAGE)

World Scientific

A Schematic Illustration of the Gas Sensor Device Based on the Hybrid Nanorod Arrays

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A schematic illustration of the gas sensor device based on the hybrid nanorod arrays. The real time resistance versus time of the vertically aligned WO3-CuO core-shell nanorod arrays-based gas sensor to varied concentrations of NH3 decreasing from 500 ppm to 50 ppm at 150 ?. The resistance of the WO3-CuO hybrid increases upon exposure to NH3, consistent with p-type semiconductor behavior. The response of the hybrid sample increasing with increasing NH3 concentration at 150. The response and recovery times range from 10 to 15 s for all NH3 concentrations.

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