Recent Progress in Ohmic/Schottky-Contacted ZnO Nanowire Sensors

Figure 11

Response curves of the CO detection recorded at 275°C with the device exposed to increased concentration of CO: (a) for the Schottky-contacted device under reverse bias and (b) for the ohmic-contacted device. (c) Sensitivity versus system temperature for CO sensing at a response time of 1 h as a function of the CO concentration. (d) Enlarged plot of the data from panel (c) for the ohmic-contacted device [70]. Copyright 2009, American Chemical Society.

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