We focused mainly on the development of single junctions of perovskite and in particular the results that were the most striking were obtained for mini-modules, so we tried to enlarge the size of the
active surface of the cell. Typically, we focused
on mini-modules of size 5cm x 5cm and up to 10cm x 10 cm. For this kind of modules, the best results
obtained were about 15 % up to 16% for 5×5 modules
and 14% for 10×10 modules. Interconnection through
laser patterning allowed to have a very fine resolution and to have
very little area that is lost between the cells in the final mini-module.