especially important for nanowire array solar cells, where the surface-to-volume ratio is
greatly enhanced. Here, the effect of different passivation materials on the effective
recombination and on the device performance is experimentally analyzed. Our solar cells
are large area top-down axial np junction silicon nanowires fabricated by means of Near-
Field Phase-Shift Lithography (NF-PSL). We report an efficiency of 9.9% for the best cell …