ISFH was one of the pioneers re-discovering passivating contacts in 2013. Since then, ISFH continuously worked on the transfer of the so-called POLO (poly-Si on oxide) technology to industrial wafer sizes. ISFH has a strong background in the development of IBC cells, on small area lab-type demonstrators (p-type worldrecord 26.1 % cell efficiency in 2018) as well as on large area industrial cells (22.1 % efficiency in 2013).
ISFH is currently transferring its POLO-IBC technology on industrial level in its SolarTec demonstration line. ISFH will use this expertise in WP3 to develop large area industrial cells targeting efficiencies >24.5%.
In WP4, ISFH will develop a stringing method for IBC cells allowing the conformation of the strings to a 3Dcurved structure after stringing. In WP5, the strings connected according to the previously mentioned method will be integrated in 3D-curved modules (similar to car roof design) that will be tested outdoors (in WP6) and indoors (in WP7). In particular, ISFH will use its shaker testing machine to submit prototypes to the vibrations/acceleration sequences endured during their transportation or operation on a vehicle.