Quantum Dot Solar Cells (QDSC)

Solterra Renewable Technologies solar energy solution will compete on a non-subsidized basis with the price of retail electricity in key markets worldwide. Revolutionary 3rd-generation quantum dot solar cells (QDSC) utilizing high-volume synthesis  of quantum dots formulated as the broad-spectrum photon absorber in solar cells and using high-speed roll-to-roll printing technologies can effectively convert solar energy to electricity at less than half the price of competition.

The Shockley-Queisser Limit

The Shockley-Queisser limit refers to the maximum theoretical efficiency of a solar cell using a p-n junction to collect power from the cell. In 2001, Dr. Arthur Nozik of the National Renewable Energy  Laboratory (NREL) in Colorado announced in his landmark work, Quantum Dot Solar Cells, that " Quantum dot (QD) solar cells have the potential to increase the maximum attainable thermodynamic conversion efficiency of solar photon conversion up to about 66% by utilizing hot photogenerated carriers to produce higher photovoltages or higher photocurrents.” In contrast, the limit for the most popular solar material, silicon, is 29 percent. One of the Dr. Nozik’s reasons for this amazing difference is that quantum dots are capable of Multiple Exciton Generation from one photon.