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Flexible film used for flexible organic solar battery

A flexible film and organic technology, applied in the field of solar cells, can solve the problems of poor weather resistance, low conversion efficiency, and short service life of flexible organic solar cells, and achieve the effect of high surface hardness and improved service life

Active Publication Date: 2013-01-09
LUCKY HUAGUANG GRAPHICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The conversion efficiency of third-generation organic solar cells is still low compared with crystalline silicon
Although the flexible film of this structure reduces a layer of flexible substrate, increases the light transmittance, and saves costs, but due to the lack of coatings such as UV resistance, heat and humidity resistance, and hardening, the weather resistance is poor and the surface hardness of the barrier layer is low. Flexible organic solar cells assembled with it have a short lifespan

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of transparent conductive film:

[0031] A PET substrate with a thickness of 125 μm was selected, and an indium tin oxide (ITO) transparent conductive film was fabricated on one side by magnetron sputtering method, with a sheet resistance of 31.8Ω / □.

[0032] Preparation of the barrier layer:

[0033] On the other side of the above-mentioned PET substrate, a 30nm-thick silicon oxide inorganic barrier layer was first prepared by plasma-enhanced chemical vapor deposition (PECVD), and then coated with a polyurethane resin binder on the surface, and dried to obtain a thickness of 5.1 μm organic barrier layer, and then alternately make two pairs of silicon oxide layers and polyurethane resin layers according to the above conditions to obtain a barrier layer.

[0034] Preparation of functional layer:

[0035] On the surface of the barrier layer prepared above, a layer of ethylene-tetrafluoroethylene copolymer (ETFE) was first coated with a thickness of 8.4 μm; t...

Embodiment 2

[0039] Preparation of transparent conductive film:

[0040] A PC substrate with a thickness of 75 μm was selected, and a silver metal grid transparent conductive film was fabricated on one side by inkjet printing method, and the sheet resistance was 2.1Ω / □.

[0041] Preparation of the barrier layer:

[0042] On the other side of the above-mentioned PC substrate, a 50nm-thick silicon oxynitride inorganic barrier layer was first prepared by electron beam physical vapor deposition (EBPVD), and then a polyester resin binder was coated on the surface, and after drying, a thickness of 3.5 μm organic barrier layer, and then alternately fabricate two pairs of silicon oxynitride layers and polyester resin layers according to the above conditions to obtain a barrier layer.

[0043] Preparation of functional layer:

[0044] On the surface of the barrier layer prepared above, a layer of perfluoroethylene propylene copolymer (FEP) is first coated with a thickness of 2.4 μm; then an organ...

Embodiment 3

[0048] Preparation of transparent conductive film:

[0049] A PEN substrate with a thickness of 175 μm was selected, and a polythiophene transparent conductive film was fabricated on one side by micro-gravure coating method, with a sheet resistance of 61.8Ω / □.

[0050] Preparation of the barrier layer:

[0051] On the other side of the above-mentioned PEN substrate, a 70nm-thick silicon carbide inorganic barrier layer was first produced by magnetron sputtering, and then an epoxy resin adhesive was coated on the surface, and an organic barrier layer with a thickness of 8.5 μm was obtained after drying. barrier layer, and then alternately fabricate two pairs of silicon oxycarbide layers and epoxy resin layers according to the above conditions to obtain a barrier layer.

[0052] Preparation of functional layer:

[0053] On the surface of the barrier layer prepared above, a layer of ethylene-tetrafluoroethylene copolymer (ETFE) is first coated with a thickness of 5.9 μm; then an...

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Abstract

The invention relates to a flexible film used for a flexible organic solar battery. According to the invention, a transparent conductive film is arranged at one side of a flexible transparent base material; a separation layer and a functional layer are sequentially arranged at the other side of the flexible transparent base material; and an organic fluororesin layer and an organic-inorganic mixed layer are sequentially arranged on the functional layer from inside to outside. The flexible film provided by the invention has the advantages of ultraviolet resistance, dampness-heat resistance and high surface hardness, and can obviously improve the service life of the battery when being used for manufacturing the organic solar battery.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a flexible film used for flexible organic solar cells. Background technique [0002] The conversion efficiency of third-generation organic solar cells is still low compared with crystalline silicon. However, the growth rate of its conversion efficiency in the last three years or so is the fastest among many technologies of solar cells. The highest conversion efficiency in 2009 was just over 6%. Recently, Japan’s Mitsubishi Chemical and the University of California, Los Angeles (UCLA) raised the conversion efficiency to over 10%. Recently, German solar cell manufacturer Heliatek has created a conversion efficiency as high as 10.7%. (effective area 1.1cm 2 ) world record. [0003] Compared with inorganic crystalline silicon solar cells, organic solar cells have another problem that needs to be solved urgently in addition to low conversion efficiency, that is, poor stability ...

Claims

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Application Information

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IPC IPC(8): H01L51/44H01L51/46B32B27/06
CPCY02E10/549
Inventor 侯丽新刘贤豪李丽田岚
Owner LUCKY HUAGUANG GRAPHICS