FABRICATION METHOD OF PHOTO ACTIVE LAYER FOR SOLAR CELL

摘要

Provided is a fabrication method of a photo active layer for a solar cell, the fabrication method including: a) coating ink containing composite particles in which a first chalcogenide of Group 1 1 metals and a second chalcogenide of Group 11 metals having a melting point lower than that of the first chalcogenide are mixed in a single particle and a precursor of at least one element selected from Groups 12 to 14 elements onto a substrate to form a coating film; and b) heat treating the coating film to prepare a multinary chalcogenide.