In Labortests an einer Universität in Pennsylvania zeigten neue Germaniumselenid- und Zinnsulfidmaterialien eine photovoltaische Absorption mit einem Wirkungsgrad von 80 % in Solarzellen, was weit über der theoretischen Shockley-Queisser-Effizienzgrenze für Materialien auf Siliziumbasis liegt.

Submission Statement

This isn’t a once-off. This new material belongs to a class of materials called Multiple Exciton Generation (MEG) materials, which have been breaking records like this for several years, though this is the best yet.

However, as so often with great lab results, this is some way from commercialization. Not only does the material look complex to manufacture, but who knows how long it will last as a solar cell at this efficiency.