Production method for solar battery glass self-cleaning antireflection light-conversion coating

A solar cell, anti-reflection technology, applied in the coating and other directions, to achieve good anti-reflection effect, moderate volatility, safe and environmentally friendly price

Active Publication Date: 2014-11-12
TIANJIN VOCATIONAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the contradiction between various functions of the existing solar cell glass self-cleaning anti-reflection light conversion coating, and to invent a titanium dioxide photocatalyst doped with fluorine tin terbium, which can be used as a self-cleaning material, light conversion material and Anti-reflection auxiliary material, which has self-cleaning and light conversion functions under the premise of maintaining the anti-reflection effect, stabilizes and improves the light transmittance of solar cell glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The solar cell glass self-cleaning anti-reflection light conversion coating of the present invention is composed as follows by mass percentage:

[0063] 5% alkaline nano-SiO 2 Hydrosol (average particle size 20nm) 50.0%

[0064] 5% acid nano-SiO 2 Hydrosol (average particle size 10nm) 25.0%

[0065] Fluorine tin terbium doped with 5% nano-TiO 2 Hydrosol (average particle size 30nm) 10%

[0066] Magnesium fluoride hydrosol (average particle size 30nm) 0.15%

[0067] Ammonium nitrate [NH 4 NO 3 ] 0.5%

[0068] nitric acid [HNO 3 ] 0.2%

[0069] 5% surfactant aqueous solution 1.0%

[0070] 5% coupling agent aqueous solution 1.0%

[0071] Deionized water balance.

[0072] Apply the above multi-functional paint roller to 10 pieces of solar cell glass samples of 300mm×300mm×3.2mm, heat and cure in sections at 80-150°C for 3 minutes to obtain a blue-purple solar coated glass, and the thickness of the film layer is about 150nm. , The average light transmittance in ...

Embodiment 2

[0074] Example 1 The production process of the self-cleaning anti-reflection light conversion coating is as follows: to a 2000mL reactor equipped with a mechanical stirrer, a thermometer, a dropping funnel and a condenser tube, successively add 1300mL of ethanol with a mass percentage concentration of 94%, deionized 180mL of water, 2.0g of ammonia water with a concentration of 10% by mass and 360g of ethyl silicate with a concentration of 99% by mass, stirred and reacted at 15-30°C for 4-6 hours, stood and aged for 12 hours, added Deionized water 2000mL, at 60-65 ℃ vacuum distillation to separate the contained ethanol, to obtain alkaline nano-SiO with a concentration of 5% by mass 2 Hydrosol 2000g, record hydrosol average particle diameter 20nm, transfer to the jar and store for subsequent use.

[0075] To the above 2000mL reactor, successively add 650mL of ethanol with a concentration of 94% by mass, 180mL of deionized water, 15g of dilute nitric acid with a concentration of ...

Embodiment 3

[0082] The solar cell glass self-cleaning anti-reflection light conversion coating of the present invention is composed as follows by mass percentage:

[0083] The solar cell glass self-cleaning anti-reflection light conversion coating of the present invention is composed as follows by mass percentage:

[0084] 5% alkaline nano-SiO 2 Hydrosol (average particle size 20nm) 50.0%

[0085] 5% acid nano-SiO 2 Hydrosol (average particle size 10nm) 10.0%

[0086] Fluorine tin terbium doped with 5% nano-TiO 2 Hydrosol (average particle size 30nm) 5%

[0087] Magnesium fluoride hydrosol (average particle size 30nm) 0.05%

[0088] Ammonium nitrate [NH 4 NO 3 ] 0.5%

[0089] nitric acid [HNO 3 ] 0.2%

[0090] 5% surfactant aqueous solution 1.0%

[0091] 5% coupling agent aqueous solution 1.0%

[0092] Deionized water balance.

[0093]Apply the above self-cleaning high anti-reflection coating to 10 solar cell glass samples of 300mm×300mm×3.2mm, heat and cure in sections at 80...

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Abstract

The invention relates to a solar battery glass self-cleaning antireflection light-conversion coating and a production method of the solar battery glass self-cleaning antireflection light-conversion coating, wherein the solar battery glass self-cleaning antireflection light-conversion coating has a photocatalysis function within the solar spectrum ultraviolet ray range and the visible light range. In a coating formula, a main component with a self-cleaning function is fluorine-tin-terbium-doped nanometer TiO2 hydrosol, and auxiliary components are alkaline nanometer SiO2 hydrosol and acid nanometer SiO2 hydrosol. The coating forms fluorine-tin-terbium-doped nanometer TiO2 photocatalysts with silicon dioxide as a carrier at the glass tempering temperature after forming a coating film; the photocatalysts can serve as light-conversion materials and antireflection materials, so the sunlight penetration rate is remarkably increased. According to the solar battery glass self-cleaning antireflection light-conversion coating and the production method, magnesium fluosilicate is adopted to replace fluoride with high corrosivity and high toxicity and serves as a fluorine source for producing the fluorine-tin-terbium-doped nanometer TiO2 photocatalysts, and by-products, namely magnesium fluoride and silicon dioxide are also good antireflection materials; the solar battery glass self-cleaning antireflection light-conversion coating is simple in production process, safe, friendly to environment, low in production cost and easy to popularize and apply in an industrialized mode.

Description

technical field [0001] The invention relates to a self-cleaning anti-reflection light conversion coating for solar cell glass and a production method thereof, in particular to a photocatalyst containing fluorine tin terbium doped nano-titanium dioxide, which has photocatalytic functions in the range of ultraviolet light and visible light in the solar spectrum The self-cleaning anti-reflection light conversion coating for solar cell glass and its production method belong to the field of new energy and new materials. Background technique [0002] Crystalline silicon solar cell modules generally consist of a glass cover plate, a cell silicon wafer, a cell back sheet, and ethylene-vinyl acetate (EVA) copolymer film adhesive and pressure-encapsulated, and then installed into a fixed frame. The visible light transmittance of solar cell module packaging glass is generally 91.6%, and its single surface reflectance is 4%. If a layer of anti-reflection film with a thickness of 150-20...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00
Inventor 李建生刘炳光王少杰
Owner TIANJIN VOCATIONAL INST
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