Precursor solution of copper-zinc-tin-sulfur thin film solar cell as well as preparation method and application thereof

Abstract

The invention discloses a precursor solution of a copper-zinc-tin-sulfur thin film solar cell as well as a preparation method and application thereof. The invention discloses two types of simple metalcomplexes capable of preparing a high-quality precursor solution. By utilizing the metal complexes as precursor compounds, the prepared precursor solution is good in stability and can be used for preparing a copper-zinc-tin-sulfur thin film light absorption material which is high in crystallization quality, good in thin film morphology and free of an impurity phase, and a copper-zinc-tin-sulfur thin film solar cell prepared from the copper-zinc-tin-sulfur thin film light absorption material is high in photoelectric conversion efficiency. By using the metal complexes, the preparation process of the precursor solution is simplified, the quality of the precursor solution is improved, the energy conversion efficiency of a photovoltaic device is improved, and the precursor solution has a greatindustrial application potential.

Description

technical field [0001] The invention belongs to the technical field of new energy photovoltaic power generation, and specifically relates to a precursor solution of a copper-zinc-tin-sulfur thin-film solar cell and its preparation method and application, in particular to the preparation and application of a photovoltaic device. Background technique [0002] The problem of energy shortage is a key problem restricting the future development of mankind. The development and utilization of renewable energy is a high-quality solution to this problem. Photovoltaic power generation technology is the most promising development direction of renewable energy. In the past few decades, silicon-based solar cells represented by monocrystalline silicon and polycrystalline silicon, and multi-component compound semiconductor thin-film solar cells represented by cadmium telluride (CdTe) and copper indium gallium selenide (CIGS) have made great strides in terms of energy efficiency. has been su...

AI Technical Summary

Problems solved by technology

However, due to the explosiveness and high toxicity of hydrazine, the application of this method is limited.

The Hillhouse research group of the University of Washington in the United States proposed a low-hazard precursor solution solution based on dimethyl sulfoxide solvent, but due to the existence of cationic redox reactions in the solution, the improvement of the efficiency of the prepared solar cells was limited.

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