A solar "avalanche"

The latest research surrounds the use of semiconducting nanocrystals (crystals with dimensions in the nanometer size range) and the “avalanche effect.”  Unlike conventional cells that release only one electron per photon, some semiconducting nanocrystals have the ability to release two or three electrons per photon. This has the potential to lead to a maximum output of 44% The cells can be manufactured relatively cheaply, meaning the technology could pave the way for low-cost, high-output solar cells.