Light Trapping: Light Trapping in Ultrathin Monocrystalline Silicon Solar Cells (Adv. Energy Mater. 11/2013)

On page 1401, Debashis Chanda, John A. Rogers, and co-workers report ultrathin (3 μm) singlecrystalline silicon solar cells with electromagnetically optimized light-trapping schemes that offer greatly enhanced absorption and corresponding improvements in efficiency of cell performance. Optically optimized cells of this type yield energy conversion efficiencies that are ≈190% higher compared to otherwise identical cells that do not exploit light trapping features, and an efficiency of 8.5% is recorded in this ultrathin film geometry