2:45 PM - 3:00 PM
[15p-A402-6] Fabrication Process Improvement of Film Type Perovskite Solar Cell Module by a Spin Coating Method
Keywords:low temperature fabrication, spin coating, transparent conductive plastic
Film type perovskite solar cells have received attention from a view point of low temperature printing process in their fabrications, and their flexible and light weight characteristics. They are expected to be put in curved surfaces and low load capacity places. It is different from conventional silicon based solar cells. On the other hand, the limitation of annealing temperature in film substrates results in difficulties of fabrication of each layer of the solar cells. For the fabrication of mini perovskite modules with a size of 10 cm x 10 cm, there are also many difficulties in the uniform coating of a perovskite layer. In this study, we fabricated film type perovskite solar cells using 9 cm x 10 cm substrate by a spin coating method, and measured the uniformity of solar cell performances.
During fabrication of perovskite solar cells by a spin coating method, the key point is the appropriate way of an anti-solvent dripping method. We found some conditions of amount of anti-solvent (here, using chlorobenzene), timing, and rotation speed and other parameters for large area perovskite solar cells with a size of 10 cm x 10 cm or larger. We also changed a composition of perovskite precursor solution, especially solvent composition for controlling drying period of time during spin coating. Film type perovskite solar cells were fabricated on a 12 cm × 9 cm ITO-PEN film. We achieved an energy conversion efficiency of 13.54% in the small part (3 mm × 3mm in 12 cm × 9 cm). In the presentation, we will discuss the uniformity of energy conversion efficiencies in a 12 cm × 9 cm area.
During fabrication of perovskite solar cells by a spin coating method, the key point is the appropriate way of an anti-solvent dripping method. We found some conditions of amount of anti-solvent (here, using chlorobenzene), timing, and rotation speed and other parameters for large area perovskite solar cells with a size of 10 cm x 10 cm or larger. We also changed a composition of perovskite precursor solution, especially solvent composition for controlling drying period of time during spin coating. Film type perovskite solar cells were fabricated on a 12 cm × 9 cm ITO-PEN film. We achieved an energy conversion efficiency of 13.54% in the small part (3 mm × 3mm in 12 cm × 9 cm). In the presentation, we will discuss the uniformity of energy conversion efficiencies in a 12 cm × 9 cm area.