Photovoltaic module

A photovoltaic module and light technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of inability to reflect light of specific wavelengths, easy aging of metal films, unfavorable promotion of photovoltaic integration, etc., and achieve selective transmission , Improve the effect of photoelectric conversion efficiency
CN104600142AActive Publication Date: 2015-05-06YINGLI GRP +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YINGLI GRP
Publication Date
2015-05-06

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Abstract

The invention provides a photovoltaic module. The photovoltaic module comprises a solar cell and a transparent backplane arranged on the light incident side of the solar cell; the photovoltaic module further comprises a selective light transmission film arranged between the solar cell and the transparent backplane, wherein the selective light transmission film is composed of at least one dielectric high reflecting film layer. As the selective light transmission film is composed of at least one dielectric high reflecting film layer, light can be regulated and reflected back into the solar cell by virtue of the property that the dielectric high reflecting film layer is capable of reflecting the light of a specific wavelength, and therefore, the photoelectric conversion efficiency of the solar cell is improved, the transmittance of the photovoltaic module to the light of the specific wavelength is reduced and the selective transmission of the photovoltaic module to the light of the specific wavelength is realized.
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Description

technical field

[0001] The present invention relates to the technical field of photovoltaics, in particular to a photovoltaic module. Background technique

[0002] As a device that converts light energy into electrical energy through photoelectric conversion, solar cell components not only have the function of solar power generation, but also allow sunlight to shine indoors through solar cell components, so as to ensure the light in photovoltaic buildings or photovoltaic agricultural greenhouses. While lighting, realize solar power generation.

[0003] However, existing crystalline silicon solar cells cannot flexibly adjust their responsiveness to specific wavelengths of light (even the ability to transmit or reflect specific wavelengths of light. When the light is strong, a large amount of light is transmitted into the interior of the building, causing the temperature inside the building to rise sharply and Indoor light pollution. And for photovoltaic agricultural greenhou...

Claims

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