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. 2015 Oct 12;5:15123. doi: 10.1038/srep15123

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(a) Schematic representation of a ZnO device illuminated with UV light. (The figure was drawn by Shuen-Jium You) (b) I–V characteristics of a Schottky device in the dark (black) and under 365-nm UV light (red); inset: the same data plotted on a logarithmic scale. (c) I–V characteristics of an ohmic device in the dark (black) and under 365-nm UV light (red). (d) Photoresponses of the ZnO NW Schottky (black) and ohmic (red) devices under illumination with UV light at a power density of 1 μW/cm².