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Multi-layer thin film for photovoltaic cell

A multi-layer thin film and photovoltaic cell technology, which is applied in photovoltaic power generation, circuits, electrical components, etc., can solve the problems of reducing light reaching photovoltaic elements, reducing the photoelectric efficiency of photovoltaic cells, etc., and achieve the effect of increasing light transmittance and increasing lifespan

Inactive Publication Date: 2010-10-13
SAMSUNG CORNING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although whitening occurs initially in a limited area of ​​the EVA sheet, this becomes more severe over time and spreads over the entire area of ​​the EVA sheet, thus reducing the amount of light that passes through to the photovoltaic element
The problem is that this reduces the photoelectric efficiency of the photovoltaic cell

Method used

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  • Multi-layer thin film for photovoltaic cell
  • Multi-layer thin film for photovoltaic cell
  • Multi-layer thin film for photovoltaic cell

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Embodiment Construction

[0021] While various embodiments of the invention will be described in detail, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.

[0022] The present invention has achieved a multilayer film for photovoltaic cells by alternately coating a transparent substrate with a plurality of high-refractive index film layers and a plurality of low-refractive index film layers, in this way the multilayer film can increase the transmittance of visible light and Reduces the transmittance of UV and...

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Abstract

A multilayer thin film for a photovoltaic cell includes a plurality of low-refractivity thin film layers and a plurality of high-refractivity thin film layers alternately coating a transparent substrate. The thickest layer of the low-refractivity thin film layers is thicker than all of the high-refractivity thin film layers and is one and half times thicker than all of the other layers of the low-refractivity thin film layers.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2009-0028562 filed on Apr. 2, 2009, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to photovoltaic cells, and more particularly, to multilayer films for photovoltaic cells that block ultraviolet light to prevent discoloration of ethylene vinyl acetate (EVA) sheets used as buffer materials in photovoltaic cells. Background technique [0004] Photovoltaic cells are power generating devices that convert light energy into voltage and current. Photovoltaic cells, especially silicon solar cells, can be generally classified into bulk solar cells using single crystal silicon or polycrystalline silicon, and thin film solar cells formed by thin film deposition or the like. In the case of bulk solar cells, the individual cells are usually connected with aluminum ribbons during the proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/052H01L31/048
CPCH01L31/02168H01L27/1423Y02E10/50H01L31/02167H01L31/048H01L31/046H01L31/0465H01L31/0445
Inventor 柳济春安阵修
Owner SAMSUNG CORNING CO LTD
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