Póster presentado en la 28th European PV Solar Energy Conference and Exhibition (EU PVSEC 2013), celebrada en París del 30 de septiembre al 4 de octubre de 2013.We have explored the following photon management options for increasing the efficiency of concentrator solar cells:
increasing the voltage by recycling the luminescence, increasing the current reducing reflection and increasing the
optical path. We find that a 1m
m thick GaAs solar cell with
optimized nanostructured front and back surfaces has significantly higher efficiency than a similar cell with a perfect
back side mirror and a state of the art bilayer antireflective
coating. We have also designed a multilayer coating with
high reflectivity at angles away from the surface normal that
results in luminescence trapping, and thus increases the open
circuit voltage and the cell efficiency.Peer Reviewe
