Abstract: A semiconductor layer for photoelectric transfer device for forming a p-n junction, which has large surface area and uniform film pressure, is formed in the atmosphere under normal pressure for several minutes. The semiconductor layer for forming a p-n junction is composed of a compound semiconductor of a Group II element(selected from the group consisting of Cd, Zn and Hg)-Group VI element(selected from the group consisting of S and Te). A semiconductor layer having a p or n conductive type is formed on a substrate by pyrolytically decomposing an organometallic compound containing a II-VI group atom bond. A semiconductor film is formed on the surface of a substrate by dispersing or dissolving an organometallic compound in a solvent to form a solution, applying ink on the surface of the substrate using a suitable printing method and subjecting to a heat treatment.

Abstract: This invention relates to a manufacturing method of a compound semiconductor thin film derived from a metal sulfide produced by thermal decomposition of a sulfur-containing metal organic compound, the compound containing at least one functional group having at least one metal atom selected from the group consisting of copper, zinc, cadmium, mercury, and lead, and the functional group also containing at least one sulfur atom. Since the obtained metal sulfides are of high-purity and dense, they can be utilized in various photoelectric devices. Particularly, the photoelectric conversion efficiency of a CdS/CdTe system thin film compound semiconductor solar cell can be improved remarkably by employing a layer made of a CdS thin film as a window of the solar cell.