Perovskite solar cells from the slot die coater represent a step towards industrial production

Metal halide perovskites are considered to be a particularly low-cost and promising class of materials for next-generation solar modules. Perovskite solar cells can be produced with coating processes using liquid inks made from precursor materials and various solvents. After coating, the solvents evaporate and the perovskites crystallize to form a more or less homogeneous layer.