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Flexible thin film solar cell and production method thereof

A solar cell and flexible film technology, applied in the field of solar cells, can solve the problems of lack of flexibility, increase the weight and volume of space vehicle solar panels, and large weight, and achieve high power-to-mass ratio, reduced weight and volume, and uniform thickness Effect

Active Publication Date: 2018-07-06
YANGZHOU CHANGELIGHT
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  • Abstract
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Problems solved by technology

Although the existing triple-junction gallium arsenide solar cells have excellent performance, the existing triple-junction gallium arsenide solar cells are heavy and lack flexibility, which increases the weight and volume of solar panels for space vehicles

Method used

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  • Flexible thin film solar cell and production method thereof
  • Flexible thin film solar cell and production method thereof
  • Flexible thin film solar cell and production method thereof

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] As mentioned in the background technology, triple-junction gallium arsenide solar cells have the advantages of high photoelectric conversion efficiency, strong radiation resistance, and good temperature characteristics, and are widely used in space vehicle power systems and ground high-power concentrated photovoltaic power plants, and It has completely replaced crystalline silicon solar cells as the main power source of space vehicles, such as used in ro...

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Abstract

The invention discloses a flexible thin film solar cell and a production method thereof. The weight and occupation volume of the flexible thin film solar cell is reduced by thinning a substratum substrate, so that the flexible thin film solar cell has more efficient power mass ratio, and then the weight and volume of the solar cell of a spacecraft are reduced; thinning is conducted on the substratum substrate through chemical thinning solution to ensure high mechanical strength and even thickness of an epitaxial wafer; in addition, after thinning is conducted on the substratum substrate, polishing treatment is conducted through polishing solution, and the mechanical strength of the epitaxial wafer can be further improved.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a flexible thin-film solar cell and a manufacturing method thereof. Background technique [0002] Triple-junction gallium arsenide solar cells have the advantages of high photoelectric conversion efficiency, strong radiation resistance, and good temperature characteristics. They are widely used in space vehicle power systems and ground high-power concentrated photovoltaic power plants, and have completely replaced crystalline silicon solar cells. Batteries become the main power source of space vehicles, such as those used in rockets. Although the existing triple-junction gallium arsenide solar cell has excellent performance, the existing triple-junction gallium arsenide solar cell is heavy and lacks flexibility, which increases the weight and volume of the space vehicle solar panel. Contents of the invention [0003] In view of this, the present invention provides a flexib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/0216H01L31/0392
CPCH01L31/02168H01L31/03926H01L31/184Y02E10/544Y02P70/50
Inventor 王亚丽何胜李俊承姜伟吴真龙
Owner YANGZHOU CHANGELIGHT
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