Development and Characterization of a bottom-up InP Nanowire Solar Cell with 16.7% Efficiency

We report on a solar cell using bottom-up synthesized InP nanowire arrays with an independently verified power conversion efficiency of 16.7% under AM1.5G solar spectrum. This value, which is the highest reported efficiency for bottom-up synthesized nanowire solar cells, was reached after a stabilized improvement of the device during characterization, by improving both back and front contacts of the more than five million nanowires that are connected in parallel in our solar cell.