Solar Cells: Device Architectures for Enhanced Photon Recycling in Thin‐Film Multijunction Solar Cells (Adv. Energy Mater. 1/2015)

In article number 1400919, John A. Rogers and co-workers report a thin-film multijunction solar cell architecture employing low refractive index air gaps as interfaces. Experimental devices using such a scheme exhibit enhanced photon recycling processes, suggesting a new path to realize photo-voltaic devices that utilize the entire solar spectrum and approach the thermodynamic efficiency limits.