COATING SOLUTION FOR FORMING LIGHT-ABSORBING LAYER, AND METHOD OF PRODUCING COATING SOLUTION FOR FORMING LIGHT-ABSORBING LAYER

摘要

A method of forming a coating solution for forming a light-absorbing layer of a solar cell, including dissolving a chalcogen and at least one metal or metal compound in dimethylsulfoxide and/or water in the presence of hydrazine to obtain a homogeneous hydrazine-coordinated metal chalcogenide complex solution; and adding at least one alcohol having 1 to 5 carbon atoms to the homogeneous hydrazine-coordinated metal chalcogenide complex solution.