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Preparation method of super-hydrophobic self-cleaning solar cell glass cover plate of deep space exploration

A glass cover and deep space detection technology, applied in photovoltaic power generation, electrical components, photovoltaic modules, etc., can solve the problems of loss of self-cleaning function, failure to guarantee repeated mass production of products, etc., achieve excellent self-cleaning effect, and simple manufacturing process Effect

Inactive Publication Date: 2017-03-08
SHANGHAI INST OF SPACE POWER SOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods all introduce materials from the outside instead of directly constructing a surface with self-cleaning function on the glass surface, so it is easy to lose the self-cleaning function due to wiping during use; Defects in repeated batch production

Method used

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  • Preparation method of super-hydrophobic self-cleaning solar cell glass cover plate of deep space exploration
  • Preparation method of super-hydrophobic self-cleaning solar cell glass cover plate of deep space exploration
  • Preparation method of super-hydrophobic self-cleaning solar cell glass cover plate of deep space exploration

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Experimental program
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Effect test

Embodiment 1

[0021] 1. Clean and dry the solar cell cover glass first, and then use a femtosecond laser to etch the surface of the glass cover with a specific shape (such as figure 1 shown), using a femtosecond laser with a power of 1w and a wavelength of 355 nm to etch the surface of the cover glass, the grooves shown are criss-cross channels with a width of 10 µm, a depth of 7 µm, and a pitch of 20 µm; After etching is completed, as figure 2 The microstructure morphology shown in (a) and (b) contains uniform groove channels, and the water droplets on the surface are tiled, showing a superhydrophilic state.

[0022] 2. Put the etched glass cover into a polytetrafluoroethylene reactor with built-in concentrated ammonia water (content 25-28%), and react in an oven at 120°C for 5 hours. After the reaction is completed, take it out and wash it with deionized water , put in 0.1g of SiO with a particle size of 300 nm 2 The 1:8:1 (mass ratio) tetraethyl orthosilicate:alcohol:water mixed solut...

Embodiment 2

[0025] 1. Clean and dry the cover glass of the solar cell first, and then use a femtosecond laser to etch the surface of the cover glass. Use a femtosecond laser with a power of 1w and a wavelength of 355 nm to etch the surface of the cover glass, as shown The grooves are criss-cross channels, the groove width is 20 µm, the depth is 15 µm, and the spacing is 20 µm; it contains uniform groove channels, and the water droplets on the surface are tiled, showing a super-hydrophilic state;

[0026] 2. Put the etched glass cover into a polytetrafluoroethylene reactor with built-in concentrated ammonia water (content 25-28%), and react in an oven at 160°C for 2 hours. After the reaction is completed, take it out and wash it with deionized water , the configuration contains 0.4g of SiO with a particle size of 7-40 nm 2 A mixed solution of tetraethyl orthosilicate:alcohol:water with a mass ratio of nanoparticles of 1:6:1 was used to spin-coat a glass sheet with the above-mentioned solut...

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Abstract

The invention discloses a method for the super-hydrophobic modification of glass cover plate surface. The method comprises the steps of conducting the laser etching and the subsequent hydroxylation to the glass cover plate surface after cleaning treatment of the surface, forming a nano coating on the glass cover plate surface, at last using the soaking method or the chemical vapor deposition to apply the modification of low surface energy materials on the glass cover plate surface. The method has the advantages of being simple in processing, having no requirement of special equipment, being simple to promote and implement, being good in repeatability and the like. What's more noteworthy is the glass cover plate modified by the method can resist multiple times of wiping, keep the super-hydrophobic self-cleaning property even after being subject to high heat and long time ultraviolet radiation, thus being suitable for the deep space exploration shuttles operating in disastrously dusty environment.

Description

technical field [0001] The invention relates to the field of materials for space power supply components, and more specifically, to a method for preparing a super-thin self-cleaning solar cell glass cover sheet for deep space exploration. Background technique [0002] With the rapid development of aerospace technology, the problem of dust has become more and more prominent in the exploration missions on the surface of extraterrestrial planets, especially in the exploration of Mars. Dust on the surface of extraterrestrial planets will accumulate on the surface of the solar cell glass cover through natural sedimentation and electrostatic adsorption under the single or synergistic effects of sunlight, cosmic rays, airflow, gravity and other factors, thereby affecting its light transmission and resulting in a decline in the output performance of solar cells . At present, the commonly used dust cleaning methods for detectors include mechanical dust removal. Taking my country’s Y...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C15/00C03C21/00C03C17/42H02S40/10
CPCC03C15/00C03C17/42C03C21/001C03C2217/70H02S40/10Y02E10/50
Inventor 黄三玻贾巍齐振一倪家伟刘智池卫英陆剑峰雷虎刘勇
Owner SHANGHAI INST OF SPACE POWER SOURCES
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