NANOWIRE ARRAY SOLAR CELLS ACHIEVING 13.8% EFFICIENCY BY EXCEEDING THE RAY OPTICS LIMIT

Photovoltaics based on nanowire arrays could reduce cost and materials consumption compared to planar devices, but have exhibited low efficiency of light absorption and carrier collection. We fabricated a variety of millimeter-sized arrays of p-i-n doped InP nanowires and found that the nanowire diameter and the length of the top…>>>more