Ferrous disulfide semiconductor film preparation method

Abstract

The invention discloses a ferrous disulfide semiconductor film preparation method, which relates to the field of preparation of compound semiconductor films for solar cells and the like. The method includes: by an aqueous solution deposition method, using ferrous sulfate or ferrous chloride aqueous solution as cation precursor solution, and using sodium polysulfide aqueous solution as anion precursor solution; controlling immersion time of a substrate in the precursor solution and circulation times to deposit a ferrous disulfide film premade layer; and subjecting the premade layer to vulcanization heat treatment at the high temperature to obtain a ferrous disulfide film. The ferrous disulfide semiconductor film preparation method is short in procedure, low in cost, high in reproducibilityand easy in massive continuous production, and the film is controllable in component and suitable for large-area growth. The deposition substrate can be normal soda lime glass, conductive glass, flexible stainless steel plates, titanium plates, molybdenum plates or plastic plates. The film prepared by the method is controllable in thickness and component, compact and uniform in appearance, high in crystallizing performance and photoelectric property and applicable to thin film solar cells.

Description

technical field

[0001] The invention discloses a method for preparing a compound semiconductor thin film, in particular to a method for preparing a ferrous disulfide semiconductor thin film; it belongs to the technical field of photoelectric materials and new energy sources. Background technique

[0002] Environmental pollution and energy crisis are becoming more and more serious, forcing human beings to seek new clean and renewable energy sources. Among various green energy sources, solar energy has attracted more and more attention due to its advantages of no pollution, wide distribution and inexhaustible supply. . At present, the research and development of thin-film solar cells as the third generation of solar cells is very active, and the materials involved are also very rich. The matching degree is good, and it is a direct bandgap material with stable performance. It is a promising high-efficiency thin-film solar cell. However, Cd in CdTe is a substance harmful to th...

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