METHOD FOR PREPARING CI(G)S-BASED THIN FILM INTRODUCED WITH AGING STEP OF SLURRY COMPRISING BINARY NANOPARTICLE AND CI(G)S-BASED THIN FILM PREPARED BY THE SAME

摘要

Provided are a manufacturing method of a CI(G)S thin film where a maturing process of slurry including binary nano-particles is introduced and a CI(G)S thin film manufactured by the same. The manufacturing method of a CI(G)S thin film includes: a step of producing CI(G)S binary nano-particles; a step of producing hybrid slurry by mixing the binary nano-particles, a precursor solution including CI(G)S elements, a solvent, and a chelating agent; a step of maturing the hybrid slurry for five to ten days; a step of forming a CI(G)S thin film by coating the matured hybrid slurry; and a step of thermal-treating the formed CI(G)S thin film. By doing so, it is possible to secure excellent reproducibility when manufacturing a CI(G)S solar cell thin film and thus improve the reliability of the manufactured thin film.