Figure 5.

I-V characteristic curves of the ZnO/CuO CH with PR. In the dark (black line) and under light (424 nm) illumination (red line). The inset shows the I-V curves of the Ag-CuO film (black line) and ITO-ZnO NWs (blue line).

Wu et al. Nanoscale Research Letters 2013 8:387   doi:10.1186/1556-276X-8-387
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