Figure 5From: Direct synthesis of vertically aligned ZnO nanowires on FTO substrates using a CVD method and the improvement of photovoltaic performanceEffect of the nanowire array length on cell performance parameters. (a) Plots of short-circuit current density and open-circuit voltage as functions of nanowire array length. (b) The overall power conversation efficiency and fill factor as functions of nanowire array length.Back to article page