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Flexible thin-film solar cell module and preparation method thereof

A technology of solar cells and flexible thin films, applied in the field of solar cells, can solve problems such as low photoelectric conversion efficiency, limited bending angle, and difficult process

Active Publication Date: 2021-05-11
重庆神华薄膜太阳能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above problems, the present disclosure provides a flexible thin-film solar cell module and its preparation method, which solves the technical problems of the prior art neutral thin-film solar cell with high process difficulty, low photoelectric conversion efficiency and limited bending angle

Method used

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  • Flexible thin-film solar cell module and preparation method thereof
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  • Flexible thin-film solar cell module and preparation method thereof

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Embodiment 1

[0077] Such as figure 2 As shown, the embodiment of the present disclosure provides a flexible thin-film solar cell module, including a flexible back sheet 23 , a back contact layer 201 , an absorber layer 202 , a buffer layer, a window layer 205 and a flexible front sheet 22 . Wherein, the back contact layer 201, the absorption layer 202, the buffer layer and the window layer 205 constitute the functional film layer 20 of the solar cell.

[0078] The flexible backplane 23 is located under the back contact layer 201, and the flexible backplane 23 plays a role of heat insulation, and the material is a polymer. It can make the bending angle of its combined products larger and more flexible without introducing other substrate materials. It not only avoids the possibility of the potential-induced attenuation effect caused by the glass substrate 21, but also avoids the influence of ion diffusion caused by the stainless steel foil substrate on the performance of CIGS thin film sol...

Embodiment 2

[0094] On the basis of the first embodiment, this embodiment provides a method for preparing a flexible thin-film solar cell module. Figure 5 It is a schematic flowchart of a method for preparing a flexible thin-film solar cell module shown in an embodiment of the present disclosure.

[0095] Such as Figure 5 As shown, the preparation method of the flexible thin-film solar cell module of the present embodiment includes the following steps:

[0096] Step S101 : providing a glass substrate 21 .

[0097] The glass substrate 21 is used for depositing the functional film layer 20 of the thin film solar cell thereon, and will be peeled off later.

[0098] No stainless steel foil substrate is used to reduce the impact of ion diffusion on the performance of CIGS thin film solar cells, and at the same time remove the short circuit and leakage safety risks of stainless steel foil piercing components.

[0099] Step S102 : forming a back contact layer 201 on the glass substrate 21 ; wh...

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Abstract

The invention provides a flexible thin-film solar cell module and a preparation method thereof. The cell module comprises a back contact layer, an absorption layer, a buffer layer, a window layer and a flexible front plate. Packaging materials of the flexible thin-film solar cell module are all high-molecular polymer materials, and the flexible angle of a combined product is larger and more flexible. Other substrate materials are not introduced, so the possibility that a glass substrate causes a potential induced degradation effect is avoided, the influence of ion diffusion caused by a stainless steel foil substrate on the performance of the thin film solar cell is avoided, and meanwhile, the safety risks of short circuit and electric leakage of a stainless steel foil piercing assembly are removed.

Description

technical field [0001] The disclosure relates to the technical field of solar cells, in particular to a flexible thin-film solar cell component and a preparation method thereof. Background technique [0002] Copper indium gallium selenide (CIGS) thin-film solar cells, as a representative of the second-generation photovoltaic technology thin-film solar cells, have been greatly developed in recent years from theoretical research to industrialization. In order to take advantage of the lightweight and bendable characteristics of thin-film photovoltaic products, flexible products have always been an important development direction of CIGS thin-film solar cells in basic research and industrial development, and the current mainstream flexible CIGS thin-film solar cell manufacturing solutions are based on flexible The device is deposited on the stainless steel foil, and its main structure is as follows figure 1 As shown, it includes a stainless steel foil 101, a back contact layer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/0224H01L31/0216H01L31/18
CPCH01L31/0481H01L31/02167H01L31/022441H01L31/18Y02E10/50Y02P70/50Y02E10/541
Inventor 田晶赵剑吴华张传升
Owner 重庆神华薄膜太阳能科技有限公司