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Preparation method for SiO2 anti-reflection film having simulated bulge structure

A technology of anti-reflection film and bionic protrusions, which is applied in the direction of semiconductor devices, electrical components, circuits, etc., can solve the problems of high strength and low transmittance of anti-reflection film, so as to improve the anti-fouling self-cleaning ability and improve the compactness , the effect of simple method

Active Publication Date: 2015-11-18
(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, people have applied biomimetic structures to various functional films, but the preparation of SiO with biomimetic raised structures 2 The anti-reflection film has not been reported yet, and the method of this patent invention can be used to prepare SiO with a bionic raised structure. 2 Anti-reflection coatings to solve the SiO prepared by acidic sol 2 The problem of high strength and low transmittance of the anti-reflection film, the bionic convex structure can improve the transmittance of the film to sunlight while retaining the high strength of the anti-reflection film, is a reliable and effective preparation for solar cells Anti-reflection coating method

Method used

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  • Preparation method for SiO2 anti-reflection film having simulated bulge structure
  • Preparation method for SiO2 anti-reflection film having simulated bulge structure
  • Preparation method for SiO2 anti-reflection film having simulated bulge structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] First, mix 1.2 mL of deionized water and 90 mL of ethanol evenly, adjust the pH value of the mixture to 2.0 with concentrated hydrochloric acid, and add 12 mL of TEOS dropwise under stirring at a speed of 300 r / min, TEOS and H 2 O undergoes hydrolysis and condensation reaction, but the reaction rate is very slow. In this embodiment, concentrated hydrochloric acid can be added to increase the rate of hydrolysis reaction. Stirring and homogenization are continued for 6 hours, and standing and aging for 4 to 6 days.

[0029] Dissolve sodium acetate trihydrate in water to make a 0.021mol / L aqueous solution, add 3.2g of cetyltrimethylammonium bromide under constant temperature heating and stirring in an oil bath at 85°C, continue heating and stirring at constant temperature for 2 hours , add silicate 5mL dropwise at a rate of 1.5mL / min, continue to heat and stir in an oil bath at 85°C for 24h, then perform centrifugal ultrasonic washing on the sample, wash three times with al...

Embodiment 2

[0032] First, mix 5 mL of deionized water and 200 mL of ethanol evenly, adjust the pH value of the mixture to 2.0 with concentrated hydrochloric acid, and add 22 mL of TEOS dropwise under stirring at a speed of 300 r / min, TEOS and H 2 O undergoes hydrolysis and condensation reaction, but the reaction rate is very slow. In this embodiment, concentrated hydrochloric acid can be added to increase the rate of hydrolysis reaction. Stirring and homogenization are continued for 6 hours, and standing and aging for 4 to 6 days.

[0033] Dissolve sodium acetate trihydrate in water to make a 0.042mol / L aqueous solution, add 6.2151g of hexadecyltrimethylammonium bromide under constant temperature heating and stirring in an oil bath at 85°C, and continue heating and stirring at a constant temperature to homogenize for 2 hours , add silicate 22mL dropwise at a rate of 1.5mL / min, continue heating and stirring in an oil bath at 85°C for 24h, then perform centrifugal ultrasonic washing on the s...

Embodiment 3

[0036] First, mix 3mL of deionized water and 330mL of ethanol evenly, adjust the pH value of the mixture to 2.0 with concentrated hydrochloric acid, and add 30mL of TEOS drop by drop under stirring at a speed of 300r / min, TEOS and H2O undergo hydrolysis and condensation reaction , but this reaction rate is very slow. In this embodiment, adding concentrated hydrochloric acid can increase the hydrolysis reaction rate, continue to stir and homogenize for 6 hours, and leave to age for 4 to 6 days.

[0037] Dissolve sodium acetate trihydrate in water to make a 0.028mol / L aqueous solution, add 3.0g of cetyltrimethylammonium bromide under constant temperature heating and stirring in an oil bath at 85°C, and continue heating and stirring at a constant temperature to homogenize for 2 hours , add silicate 6mL dropwise at a rate of 1.5mL / min, continue to heat and stir in an oil bath at 85°C for 24h, then perform centrifugal ultrasonic washing on the sample, wash three times with alcohol, ...

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Abstract

The invention discloses a preparation method for a SiO2 anti-reflection film having a simulated bulge structure. The preparation method comprises the following steps of: taking mono-dispersed spherical SiO2 powder as a hard template, dispersing the SiO2 powder in an acidic SiO2 sol, and carrying out film coating on a glass substrate to obtain the SiO2 anti-reflection film having the simulated bulge structure. The performance of the SiO2 anti-reflection film is improved with the adoption of the particular simulated bulge structure, and on the basis of maintaining film strength, the solar transmittance is increased; and moreover, the capability of pollution prevention and self-cleaning can be improved by the simulated bulge structure. The method disclosed by the invention is simple and is moderate in condition, the physical and chemical stability of a product is high, the product performance of the SiO2 anti-reflection film is enhanced and improved, the conversion efficiency of a solar cell is further enhanced, and a certain promotion effect is played in the wide application of the solar cell.

Description

technical field [0001] The invention belongs to the field of non-metal nanomaterials, in particular to a monodisperse spherical SiO 2 The powder acts as a hard template and is dispersed into acidic SiO 2 In the sol, the SiO with biomimetic convex structure was prepared by coating on the glass substrate. 2 Anti-reflective coating. Background technique [0002] Due to its unique structure, the biomimetic convex structure has many unique functions. Fully understand its structural characteristics and life functions, design and prepare functional energy membranes similar to its structure and function, and even develop functional membranes with different properties from biological membranes materials, at this stage, the goal of artificially completely replicating biofilms has not yet been realized. However, by studying natural biofilms, we can fully understand their structural characteristics and life functions, design and prepare functional films similar to their structures an...

Claims

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Application Information

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IPC IPC(8): H01L31/0216
CPCH01L31/02168Y02E10/50
Inventor 王芸王萍萍金良茂操芳芳汤永康甘治平
Owner (CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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