Preparation method of self-cleaning coating on surface of light-induced solar cell

A self-cleaning coating and solar cell technology, applied in photovoltaic power generation, circuits, electrical components, etc., can solve problems such as not making full use of direct sunlight conditions, and achieve the effect of saving raw materials and reducing costs

Active Publication Date: 2020-12-04
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problem that the existing solar cell surface coating construction method does not fully utilize the direct sunlight condition, the purpose of the present invention is to provide a method for preparing a light-induced solar cell surface self-cleaning coating

Method used

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  • Preparation method of self-cleaning coating on surface of light-induced solar cell

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Experimental program
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Embodiment 1

[0023] The hydrophobic coating of the solar cell panel is constructed under the ultraviolet light, and the sunlight induces the radical reaction of the halogenated alkanes, and directly polymerizes on the surface of the solar cell to obtain a hydrophobic coating, which is constructed according to the following steps:

[0024] (1) Construction of vinyl coating:

[0025] Disperse 0.3 mL of silane coupling agent A151 in 30 mL of water to obtain a 1% aqueous solution of silane coupling agent at room temperature, add 5 drops of 25% concentrated ammonia water and stir rapidly for 1 h until a uniform liquid is formed;

[0026] (2) Apply the above liquid on the surface of the solar panel, drain and recycle the excess liquid, and let it dry in the dark at room temperature for 1 hour until the coating is initially dry. This step should avoid direct sunlight;

[0027] (3) Coating 1-bromododecane:

[0028] 1) Dissolve 1 mL of 1-bromododecane in 30 mL of ethyl acetate;

[0029] 2) Add th...

Embodiment 2

[0034] Construct the solar cell panel hydrophobic coating under direct sunlight, similar to Example 1, construct according to the following steps:

[0035] (1) Construction of vinyl coating:

[0036] Disperse 0.3 mL of silane coupling agent A151 in 30 mL of water at room temperature, add 5 drops of 25% concentrated ammonia water dropwise and stir rapidly for 1 h until a uniform liquid is formed;

[0037] (2) Add the above liquid onto the surface of the solar panel and spread it evenly with a non-woven fabric, drain and recover the excess liquid, and let it dry in the dark at room temperature for 1 hour until the coating is initially dry;

[0038] (3) Coating 1-bromohexadecane:

[0039] 1) Dissolve 1 mL of 1-bromohexadecane in 30 mL of ethyl acetate;

[0040] 2) Add the solution obtained in step 1) onto the surface of the solar panel and spread it evenly with a plastic spatula, drain and recover the excess liquid, and let it stand for 0.5 h until the ethyl acetate in the coat...

Embodiment 3

[0045] Under the ultraviolet light, dibromoalkane is used to construct the solar panel hydrophobic coating, which is similar to Example 1, and is constructed according to the following steps:

[0046] (1) Construction of vinyl coating:

[0047]Disperse 0.3 mL of silane coupling agent A151 in 30 mL of water at room temperature, add 5 drops of 25% concentrated ammonia water and stir rapidly for 1 h until a uniform liquid is formed;

[0048] (2) Add the above liquid onto the surface of the solar panel and spread it evenly with a non-woven fabric, drain and recover the excess liquid, and let it dry in the dark at room temperature for 1 hour until the coating is initially dry. This step needs to avoid sunlight Direct;

[0049] (3) Coating 1,6-dibromohexane:

[0050] 1) Dissolve 1 mL of 1,6-dibromohexane in 30 mL of petroleum ether;

[0051] 2) Add the solution obtained in step 1) onto the surface of the solar panel and spread it evenly with a plastic scraper, drain and recover t...

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Abstract

The invention discloses a preparation method of a light-induced solar self-cleaning coating. The method comprises the following steps of adding a vinyl silane coupling agent and ammonia water into water, and sufficiently stirring to form uniform liquid; coating the liquid on the surface of a tempered glass plate of the solar cell, and airing at room temperature in a dark place; uniformly coating brominated hydrocarbon on the surface of the toughened glass plate of the solar cell; irradiating for a certain time under a light source, and combining brominated hydrocarbon with the vinyl silane coupling agent through a free radical addition reaction to form a hydrophobic self-cleaning coating; and washing off unreacted micromolecular organic matters on the surface with ethyl acetate to finish the construction of the self-cleaning coating. According to the present invention, the advantages of the in-situ polymerization reaction are fully utilized, the raw materials are saved, and the cost isreduced; the properties of the hydrophobic coating on the surface of the solar cell can be conveniently regulated and controlled by using different alkyl halides.

Description

technical field [0001] The invention relates to the technical field of surface coatings, in particular to a method for preparing a self-cleaning coating on the surface of a light-induced solar cell. Background technique [0002] The central and western regions of my country are rich in solar energy resources, and a large number of solar cell power plants have been built in recent years. However, these areas often have a lot of wind and sand, a lot of ash, and the population is sparsely populated, and fresh water resources are scarce. Due to conditions, the ash on the surface of the solar cells cannot be cleaned in time, and the resulting loss of power generation energy can reach more than 50% (Bergin M H , Ghoroi C , Dixit D , et al. Large Reductions in Solar Energy Production Due to Dust and Particulate Air Pollution [J]. Environmental Science & Technology Letters, 2017: acs.estlett.7b00197.). Building a hydrophobic self-cleaning coating on the surface of solar cells can e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0216H01L31/18
CPCH01L31/02167H01L31/186Y02E10/50Y02P70/50
Inventor 崔大祥张放为张芳卢玉英阳靖峰葛美英焦靖华王亚坤
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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