Combining Photon Recycling and Concentrated Illumination in a GaAs Heterojunction Solar Cell

GaAs single-junction solar cells with rear-side-reflective structures have been developed aiming for an increase in open-circuit voltage Voc by the combination of photon recycling and concentrated illumination of sunlight. Photon recycling gains importance with increasing sunlight concentration as the materials are increasingly dominated by radiative recombination. At the same time, resistive loss...