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Novel copper indium gallium diselenide solar cell using sodium sulfate to control sodium diffusion

A technology of solar cells and copper indium gallium selenide, which is applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of high solar cell prices, uncontrollable sodium diffusion, low power generation efficiency, etc., to achieve control of sodium diffusion, improve quality and The effect of production yield and reduction of production cost

Inactive Publication Date: 2013-09-18
JIFU NEW ENERGY TECH SHANGHAI
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Problems solved by technology

[0005] At present, most of the industry uses common copper indium gallium selenide solar cells, but this method still has the disadvantage of uncontrollable sodium diffusion, which leads to low power generation efficiency. Among them, the price of solar cells is too high, and it cannot be effectively popularized and applied in daily life.

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  • Novel copper indium gallium diselenide solar cell using sodium sulfate to control sodium diffusion

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Embodiment Construction

[0033] Hereby the present invention is cooperated with accompanying drawing, is described in detail as follows:

[0034] refer to Figure 1 , is a new structural diagram of a copper indium gallium selenium solar cell using sodium sulfate to control sodium diffusion in the present invention.

[0035] It includes a glass substrate 1 , a molybdenum back electrode 2 , a sodium sulfate film 3 , a copper indium gallium selenide film 4 , chromium sulfide 5 , a conductive transparent penetrating layer 6 and a metal front electrode 7 .

[0036] In order to prepare a copper indium gallium selenide solar cell with a sodium sulfate film that can effectively control sodium, its structure is as follows: glass substrate 1, molybdenum back electrode 2, sodium sulfate film 3, copper indium gallium selenide film 4, chromium sulfide 5, conductive transparent through The transparent layer 6 and the metal front electrode 7. Using an evaporation system and applying a high voltage to evaporate the ...

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Abstract

The main purpose of the invention is to provide a novel copper indium gallium diselenide solar cell using sodium sulfate to control sodium diffusion. According to the technology method, a vacuum evaporation method is used to make a sodium sulfate film; the purpose is to control sodium diffusion; the quality and the production yield of the copper indium gallium diselenide solar cell can be greatly improved; the short circuit current of the copper indium gallium diselenide solar cell can be improved; the production cost is reduced; and the copper indium gallium diselenide solar cell of high efficiency is realized.

Description

[0001] Technical field [0002] The present invention relates to a new copper indium gallium selenium solar cell using sodium sulfate to control sodium diffusion. Its purpose is to greatly increase the quality of copper indium gallium selenium solar cells, control sodium diffusion through sodium sulfate film, and then achieve high productivity and high efficiency. Copper Indium Gallium Selenium Solar Cells. [0003] Background technique [0004] Due to the high price of energy, people all over the world are looking for alternative green energy. CIGS solar cells are an efficient green energy that converts sunlight into electricity. [0005] At present, most of the industry uses common copper indium gallium selenide solar cells, but this method still has the disadvantage of uncontrollable sodium diffusion and low power generation efficiency. Among them, the price of solar cells is too high and it cannot be effectively popularized and applied in daily life. . [0006] Cont...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0749C23C14/24
CPCY02E10/541
Inventor 陈政宏刘幼海刘吉人
Owner JIFU NEW ENERGY TECH SHANGHAI