>15% top cell (1 cm2) on glass; stability T80 >500h

The newly developed top cell absorber and contact layers will be tested in a single-junction device on the small demonstrator level (1cm2) reaching a PCE of >15%, and subsequently subjected to prolonged light soaking of 500 hours, where 80% of the initial PCE should be maintained. This deliverable is related to Task 3.1.