Research Article

UV Enhanced Oxygen Response Resistance Ratio of ZnO Prepared by Thermally Oxidized Zn on Sapphire Substrate

Figure 5

Relative resistance ratio of the ZnO resistor device at different O2 pressures in the dark (dark) and under UV light illumination with power densities 10.5 μW cm−2 and 54.4 μW/cm−2.
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