Thin-film solar cell and manufacturing method thereof
A technology of thin-film solar cells and manufacturing methods, applied in the direction of final product manufacturing, sustainable manufacturing/processing, circuits, etc., to achieve the effects of wide source of raw materials, simple structure and process, and easy large-scale production and application
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[0025] Such as figure 1 As shown, the thin film solar cell of the present invention is composed of a glass substrate 1, a back electrode 2, a light absorbing layer 3, a buffer layer 4, a window layer 5, and a top electrode 6 from bottom to top.
[0026] The back electrode of the battery is a molybdenum film with a thickness of 0.3-3 μm; the light absorbing layer is a copper-zinc-tin-sulfur (CZTS) film with a thickness of 0.5-5 μm; the buffer layer is a zinc sulfide (ZnS) film , its thickness is 20~100nm; The described window layer is zinc aluminum oxide (ZAO) thin film, and its thickness is 0.2~5 μ m; The described top electrode is nickel aluminum alloy thin film, and its thickness is 0.2~5 μ m, wherein aluminum content 1 to 100%.
[0027] The manufacture method of thin-film solar cell of the present invention carries out according to the following steps:
[0028] (1) Manufacturing of the back electrode: Deposit molybdenum film on the substrate surface by direct current magn...
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