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Full-non-vacuum process preparation method of copper-zinc-tin-sulfur thin film solar cell

A solar cell, copper-zinc-tin-sulfur technology, applied in the direction of circuits, electrical components, final product manufacturing, etc., can solve the problems of unfavorable large-scale production and high manufacturing cost, achieve good promotion and utilization value, low process cost, and suitable for large-scale production. production effect

Active Publication Date: 2013-05-01
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Claims
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Problems solved by technology

[0003] Although the raw materials of copper-zinc-tin-sulfur solar cells are cheap, vacuum evaporation or sputtering are generally used to prepare the back electrode, absorber layer, window layer, top electrode and other film layers, which is not conducive to large-scale production due to high manufacturing costs.

Method used

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Embodiment Construction

[0017] Such as figure 1 , figure 2 Shown, thin-film solar cell preparation method of the present invention is prepared by the following steps:

[0018] First, step S1 is performed to provide a substrate layer 1, and the substrate layer 1 is one of glass, stainless steel, silicon wafer, and polyimide.

[0019] Then carry out step S2, preparation of back electrode layer 2: adopt silver mirror reaction method to prepare silver thin film concrete steps are: add 1 milliliter concentration in clean container and be 2% silver nitrate solution, then add sodium hydroxide aqueous solution, then shake while Container, you can see the white precipitate, and then drop 2% dilute ammonia water drop by drop until the initial precipitate is just dissolved to get the silver ammonia solution; put the glass substrate into the container, and drop the glucose solution into the container , and warm the container in hot water after shaking. Soon, it can be seen that there is a bright mirror-like ...

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Abstract

The invention provides a full-non-vacuum process preparation method of a copper-zinc-tin-sulfur thin film solar cell and belongs to the technical field of a photoelectric material new energy source. The full-non-vacuum process preparation method is low in cost and is suitable for large-scale and large-batch production of the solar cell. The full-non-vacuum process preparation method comprises the following steps of: a, providing a substrate layer; b, preparing a rear electrode layer: preparing one layer of molybdenum or silver thin film; c, preparing an absorption layer: preparing a copper-zinc-tin metal precursor and carrying out vulcanization heat treatment to obtain a copper-zinc-tin-sulfur thin film; d, preparing a buffering layer: preparing a cadmium sulfide or zinc sulfide thin film; e, preparing a window layer: preparing an intrinsic zinc oxide window layer thin film; f, preparing a top electrode layer: preparing an aluminum-doped zinc oxide top electrode layer thin film; and g, preparing a grid electrode: adopting a reflow soldering lamination compound process to prepare a grid electrode. The full-non-vacuum process preparation method of the copper-zinc-tin-sulfur thin film solar cell disclosed by the invention has the advantages of low process cost and suitableness for large-scale production, so that the full-non-vacuum process preparation method has very good popularization and utilization values.

Description

technical field [0001] The invention belongs to the technical field of photoelectric materials and new energy sources, and in particular relates to a method for preparing a copper-zinc-tin-sulfur thin-film solar cell by a non-vacuum process. Background technique [0002] Facing the growing energy demand and deteriorating environmental conditions, the development of renewable and clean energy is imminent. Solar cells can directly convert the inexhaustible solar energy into electrical energy and have broad application prospects. Thin-film solar cells have the advantages of less material, light weight, and low cost, which is an important direction for the development of solar cells. Copper indium gallium selenide (CIGS) thin film solar cell is the thin film solar cell with the most mature technology and the highest module efficiency at present, and people have carried out extensive research for many years. However, the large-scale popularization of CIGS thin-film solar cells ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18
CPCY02P70/521Y02P70/50
Inventor 向勇张海涛谢梦张庶
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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