Polyester film for flexible or thin-film solar cells and method for preparing same

A technology of solar cells and polyester films, which can be used in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low efficiency of solar cells, and achieve the effect of improving power generation efficiency and light absorption efficiency

Inactive Publication Date: 2016-04-27
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the optical resonance also causes the nanoparticles to absorb light, which means the solar cell will be less efficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Put 8Kg of polyester resin solution (polyester resin solid content 1%) (191, Wenzhou Zhongqiao Polymer Material Industry Co., Ltd.), 51.9999Kg ethanol, 40Kg acetone solvent in an emulsifier at a temperature of 0~10°C Stir and blend evenly;

[0026] (2) Add 0.0001Kg nano-aluminum powder to the above solution at room temperature and mix it with an emulsifier, and use ultrasonic treatment to obtain a uniformly mixed colloidal blend;

[0027] (3) Import the above blend into the screw mixing extruder for blending and extrusion, the temperature is controlled at 80~90 degrees, the extrudate is filtered through a 100-mesh filter, metered and extruded (the inlet and outlet pressure of the metering pump is 3MPa), flow A 100UM thick cast film is cast on a casting machine, dried in a tunnel at 80°C, cooled by cold air at 10°C, drawn by a stretching machine 3 times, drawn, coiled, etc., to obtain a flexible or thin-film polyester film for solar cells.

Embodiment 2

[0029] (1) Polyester resin solution (polyester resin solid content 3%) (196, Wenzhou Zhongqiao Polymer Material Industry Company) 10Kg, 49.9Kg toluene, 20Kg methyl acetate, 20Kg acetone, with an emulsifier at 50~ Stir and blend evenly at a temperature of 60°C;

[0030] (2) Add 0.1Kg of nano-aluminum powder to the above solution at room temperature and mix it with an emulsifier, and use ultrasonic treatment to obtain a uniformly mixed colloidal blend;

[0031](3) Import the above blend into the screw mixing extruder for blending and extrusion, the temperature is controlled at 80~90 degrees, the extrudate is filtered through a 100-mesh filter, metered and extruded (the inlet and outlet pressure of the metering pump is 3MPa), flow A 100UM thick cast film is cast on a casting machine, dried in a tunnel at 80°C, cooled by cold air at 10°C, drawn by a stretching machine 3 times, drawn, coiled, etc., to obtain a flexible or thin-film polyester film for solar cells.

Embodiment 3

[0033] (1) Stir and blend polyester resin solution (polyester resin solid content 5%) (2608, Bayer, Germany) 11Kg, 88.95Kg ethylene glycol ether solvent in an emulsifier at a temperature of 0-10°C;

[0034] (2) Add 0.05Kg of nano-aluminum powder to the above solution at room temperature and mix it with an emulsifier, and use ultrasonic treatment to obtain a uniformly mixed colloidal blend;

[0035] (3) Import the above blend into the screw mixing extruder for blending and extrusion, the temperature is controlled at 80~90 degrees, the extrudate is filtered through a 100-mesh filter, metered and extruded (the inlet and outlet pressure of the metering pump is 3MPa), flow A 100UM thick cast film is cast on a stretching machine, tunnel drying at 80°C, cooling by cold air at 10°C, 3 times drafting by a stretching machine, traction, coiling, etc., to obtain a flexible or thin-film polyester film for solar cells.

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PUM

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Abstract

The invention relates to a polyester film for flexible or thin-film solar cells and a preparation method thereof. The film is prepared from the following components in percentage by mass: 8-12% of polyester resin solution (the solid content of polyester resin is 1-10%), 0.0001-0.1% of nano aluminum powder and the balance of solvent. The preparation method comprises the following steps: blending the materials, filtering, introducing into a running die head, drying, cooling, drawing, coiling and the like to obtain the polyester film for solar cells. The product is attached to the photic surface of the thin-film solar cell or used as an upper packaging film of the solar cell to directly enhance the generating efficiency of the flexible or thin-film solar cell.

Description

technical field [0001] The invention relates to a polyester film for flexible or thin-film solar cells and a preparation method thereof. By using the film to encapsulate the light-incident surface of the flexible or thin-film solar cells, the efficiency of the flexible or thin-film solar cells can be directly improved. Background technique [0002] Among the projects of effective utilization of solar energy: photovoltaic utilization is the fastest growing and most dynamic research field in recent years. Generally, the production of solar cells is mainly based on semiconductor materials, which use photoelectric materials to absorb light energy and generate photoelectric conversion reactions to generate electricity. According to the different materials used, solar cells can be divided into: 1. Silicon solar cells; 2. Solar cells made of inorganic salts such as gallium arsenide III-V compounds, cadmium sulfide, copper indium selenide and other multi-component compounds; 3. Sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/06C08L63/00C08L33/02C08L33/04C08L83/04C08K3/08H01L31/048
CPCY02E10/50
Inventor 张迎晨吴红艳
Owner ZHONGYUAN ENGINEERING COLLEGE
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