Drying method of polyimide paste and manufacturing method of high photoelectric conversion efficiency solar cell

摘要

The present invention is a method of drying a polyimide paste comprising an organic solvent, a polyimide resin dissolved in the organic solvent, and curing by drying and heating to form a cured polyimide. The polyimide paste is applied to the surface of the substrate. After the step of applying a solvent containing a polar substance and a solvent containing the polar substance, and a step of applying a solvent containing the polar substance to at least the surface of the portion where the polyimide paste is applied to the substrate, the polyimide paste And a step of drying the solvent containing the polar material. Thereby, a method of drying a polyimide paste capable of maintaining a printing shape while maintaining productivity is provided.