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Preparation method of efficient increased-transmission and antireflection glass

A glass and high-efficiency technology, which is applied in the field of preparation of high-efficiency anti-reflection and anti-reflection glass, can solve the problems of inaccurate control of the refractive index of the film, easy peeling performance of the film, poor bonding force, etc., and achieve obvious anti-reflection effect, low cost, and enhanced binding effect

Inactive Publication Date: 2012-07-18
(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sol-gel method has defects such as inaccurate control of the refractive index of the film, poor bonding force, easy peeling off of the film, and performance attenuation.

Method used

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  • Preparation method of efficient increased-transmission and antireflection glass
  • Preparation method of efficient increased-transmission and antireflection glass
  • Preparation method of efficient increased-transmission and antireflection glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Mix and heat 0.12 mol of water, 0.04 mol of ammonia water and 3 mol of anhydrous ethanol. When the temperature reaches the set temperature of 35°C, add 0.04 mol of tetraethyl orthosilicate, keep constant temperature, and continue stirring for 21 hours to obtain silica nanoparticle dispersion. solution, and then slowly add polystyrene latex balls with a diameter of 105 nm into the dispersion of silica nanoparticles and stir with a volume ratio of 2.6:1 to obtain a blended solution for use.

[0019] A roll coating method is used to coat the cleaned photovoltaic glass surface to obtain a transparent film. The coated photovoltaic glass is sintered at a temperature of 500° C. for 18 minutes to obtain high-efficiency anti-reflection and anti-reflection glass.

[0020] figure 1 It shows that the prepared film is a silicon dioxide film with porous cavity morphology, and the refractive index of the film layer is controlled; analysis figure 2 , we found that the transmittance ...

Embodiment 2

[0022] Mix and heat 0.4mol water, 0.4mol hydrochloric acid and 12mol ethylene glycol with stirring, and when the temperature reaches the set temperature of 20°C, add 0.04mol methyl orthosilicate, keep constant temperature, and continue stirring for 2 hours to obtain silica nanoparticle dispersion solution, and then slowly add polystyrene latex balls with a diameter of 10 nm into the dispersion of silica nanoparticles and stir at a volume ratio of 1:5 to obtain a blended solution for use.

[0023] A roll coating method is used to coat the cleaned photovoltaic glass surface to obtain a transparent film. The coated photovoltaic glass was sintered at 700°C for 5 minutes to obtain high-efficiency anti-reflection and anti-reflection glass. After testing, the transmittance of the anti-reflection glass increased by 2.6%.

Embodiment 3

[0025] Mix and heat 0.004mol of water, 0.002mol of sodium hydroxide and 0.4mol of propanol, and when the temperature reaches the set temperature of 50°C, add 0.04mol of methyl orthosilicate, keep constant temperature, and continue stirring for 40 hours to obtain silica nano Particle dispersion, and then slowly add polystyrene latex balls with a diameter of 200nm into the silica nanoparticle dispersion and stir at a volume ratio of 5:1 to obtain a blended solution for use.

[0026] Coating is carried out on the cleaned photovoltaic glass surface by a spraying method to obtain a transparent film. The coated photovoltaic glass was sintered at 300°C for 30 minutes to obtain high-efficiency anti-reflection and anti-reflection glass. After testing, the transmittance of the anti-reflection glass increased by 2.5%.

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Abstract

The invention discloses a preparation method of efficient increased-transmission and antireflection glass, which comprises the steps as follows: (1) the molar ratio of raw materials comprising silicon sources to deionized water to catalysts to solvents is 1:0.05 to 10:0.01 to 10: 10 to 300, the deionized water, the catalysts and the solvents are firstly mixed, heated and stirred at a uniform speed, when an obtained mixture is heated to 20 to 50 DEG C, the silicon sources are added to the mixture and stirred with the mixture for 2 to 40 hours at a maintained constant temperature and a uniform speed, and then silica nano-particle dispersion liquid is obtained; (2) polystyrene latex spheres are used as templates to be mixed with the silica nano-particle dispersion liquid obtained in the step (1) at a volume ratio of 1:5 to 5:1, and then a blended solution is obtained; (3) the blended solution obtained in the step (2) is coated on the surface of a photovoltaic glass substrate; and (4) the film-coated photovoltaic glass substrate is placed in a temperature condition of 300 to 700 DEG C to be sintered for 5 to 30 minutes, and then the efficient increased-transmission and antireflection glass is obtained. The preparation method has the advantages that the binding force between an antireflection film and the substrate is strengthened, and the durability of the thin film is improved; and besides, through controlling the diameter and the mixing proportion of the polystyrene latex sphere templates, the reflectivity of the thin film is accurately regulated, so that an obvious increased-transmission effect is achieved.

Description

technical field [0001] The invention belongs to the field of photovoltaic glass for solar cells, in particular to a preparation method of high-efficiency anti-reflection and anti-reflection glass. Background technique [0002] The worldwide energy shortage and environmental protection pressure have greatly promoted the development and application of solar photovoltaic module technology. With the continuous optimization of solar cells and photovoltaic components, the conversion efficiency of crystalline silicon or thin-film solar cells in solar photovoltaic components is close to the limit value. Continue to rely on improving the efficiency of the cells themselves to improve the efficiency of the cells to increase the actual output power of photovoltaic components becomes very difficult, but can be improved in other ways such as increasing light intensity. The currently used ultra-clear photovoltaic glass has a high transmittance in the visible light band, and its transmitta...

Claims

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Application Information

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IPC IPC(8): C03C17/23
Inventor 彭寿金良茂甘治平王芸彭程王东邹上荣石丽芬单传丽张家林
Owner (CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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