WP5 is aimed at fabricating enhanced efficiency thin-film solar cells, leveraging on light-trapping enhancement of quantum dots harvesting and photon recycling. The main objectives are:
- demonstration of fully processed photon-recycling enhanced thin-film cell on foreign carrier with optimized rear reflector;
- demonstration of fully processed light-trapping enhanced nanostructured thin-film QD solar cell.
Two high-efficiency, thin-film III-V cells on a 2” diameter metal foil acting as mirror and back contact produced at Radboud University (left picture) and a large number of small thin-film III-V cells for concentrator system applications produced on a 4″ diameter foil at tf2-devices (right picture).