Solution growth method CdTe / CdS solar cell fabrication method using CdS thin film

摘要

The present invention relates to a method of manufacturing a CdS thin film on a transparent conductive glass substrate made of ITO (In ₂ O ₃ .SnO ₂ ) or SnO ₂ : F by a solution growth method under specific conditions. The CdS thin film is annealed and then subjected to electron beam (EB) A CdTe thin film is formed on a CdS thin film by a method such as evaporation, sputtering or the like. Then, the CdTe thin film is thermally treated, chemically etched with a 2 to 20% chromic acid solution, and the oxide film is removed with hydrazine hydrate, Au or Cu / Au is deposited and then heat-treated. The present invention relates to a method of manufacturing a CdTe / CdS solar cell using a CdS thin film. The CdS thin film exhibits energy conversion efficiency of 7% CdTe / CdS solar cell using the same method.