Solar cell buffer layer preparation device

A technology for preparing devices and solar cells, which is applied in the field of solar cells, can solve problems such as uneven deposition thickness of buffer layer materials, and achieve the effect of reducing solution concentration changes and uniform buffer layer materials

Pending Publication Date: 2020-06-05
鸿翌科技有限公司
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Problems solved by technology

The stainless steel coil passes through the unwinding system to flatten the steel coil, the deposition system deposits the buffer layer material, and then goes through the cleaning, drying system and winding; but the thickness of the buffer layer material deposition is not uniform in this scheme

Method used

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  • Solar cell buffer layer preparation device

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0032] figure 1 It is a structural schematic diagram of the preparation device of the solar cell buffer layer of the present invention.

[0033] A preparation device for a buffer layer of a solar cell, comprising: a liquid medicine supply device 1, a liquid medicine supply device 2, a cleaning device 3, and a drying device 4; a liquid medicine supply device 1, a liquid medicine supply device 2, a cleaning device 3 and a ...

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Abstract

The invention relates to the technical field of solar cells, in particular to a solar cell buffer layer preparation device which comprises a liquid medicine supply device, a liquid medicine supplementing device, a cleaning device and a drying device which are sequentially arranged in the moving direction of a substrate material. The liquid medicine sprayed on the substrate material is deposited into a buffer layer material through a deposition system, and then passes through a cleaning and drying system and is rolled; through the additionally-arranged liquid medicine supplementing device, liquid medicine is continuously sprayed to the substrate layer in the buffer layer deposition process, and the situation that in the deposition process, due to solution volatilization, the solution concentration changes, and consequently the buffer layer film thickness deposition nonuniformity is caused is reduced; and the deposited buffer layer material is uniform.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a preparation device for a solar cell buffer layer. Background technique [0002] Flexible thin-film copper indium gallium selenide photovoltaic solar cells have been gradually industrialized, but one of the factors affecting the industrialization process is how to further improve the photoelectric conversion efficiency of the cell. The research in this field mainly focuses on the improvement of the characteristics of the photovoltaic material itself. In addition to the improvement of the absorption layer (copper indium gallium selenide), the most important point is the optimization of the buffer layer structure. This mainly involves the uniformity control of the thickness of the buffer layer film material. How to prepare a high-quality buffer layer thin film material through a roll-to-roll water bath deposition system plays a vital role in improving the conversion efficienc...

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Application Information

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IPC IPC(8): H01L31/18H01L31/0445
CPCH01L31/18H01L31/0445Y02E10/50Y02P70/50
Inventor 张德忠王雪戈孙鹏赵益昕
Owner 鸿翌科技有限公司
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