Method for forming durable dual-layer antireflection film on surface of soda-lime glass

A soda lime glass, durability technology, applied in the field of glass coating, can solve the problems of affecting transmittance, poor durability, shortened life, etc., and achieve the effects of accurately controlling thickness and uniformity, improving durability, and controlling production costs

Inactive Publication Date: 2013-02-06
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, soda-lime glass also has its shortcomings and deficiencies: on the one hand, due to the difference in refractive index with the air, there will be about 8% reflection loss on its surface, which affects the transmittance; on the other hand, especially in the atmosphere In a humid environment, the H in the moisture in the air + The ions will exchange with the alkali metal ions in the soda-lime glass, and at the same time destroy the Si-O-Si network structure, causing the soda-lime glass to be corroded and its lifespan reduced
Thomas I M (High laser damage threshold porous silica antireflective coating, Applied Optics, 1986, 25: 1481-1483) prepared a single layer of porous SiO 2 Anti-reflection film, the transmittance increased by 7~8%, but the problem of this kind of loose film with high porosity is poor durability and easy to be polluted by the external environment

Method used

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  • Method for forming durable dual-layer antireflection film on surface of soda-lime glass
  • Method for forming durable dual-layer antireflection film on surface of soda-lime glass
  • Method for forming durable dual-layer antireflection film on surface of soda-lime glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Feed trimethylaluminum into the reaction chamber and react with water vapor to obtain a reaction product. The temperature of the soda-lime glass substrate is 250° C., the pressure of the deposition chamber in the reaction chamber is set to 100 Pa, and the atomic layer deposition method is used. The reaction product was simultaneously deposited on both surfaces of the soda-lime glass substrate to obtain high refractive index Al with a thickness of 50nm 2 o 3 Film; mix tetraethyl orthosilicate (TEOS), absolute ethanol and hydrochloric acid at room temperature with a molar ratio of 1:49:0.007, stir for 8 hours to obtain a stable and transparent silica sol, and age for 3 days before use; Coating the aged silica sol on the high refractive index Al obtained by the above deposition by pulling method 2 o 3 On the surface of the film, the pulling speed is 1.6mm / s, and the number of pulling times is 1, so that the high refractive index Al 2 o 3 SiO 2 Thin film, fi...

Embodiment 2

[0030] Example 2: Feed trimethylaluminum into the reaction chamber and react with water vapor to obtain a reaction product. The temperature of the soda-lime glass substrate is 250° C., the pressure of the deposition chamber in the reaction chamber is set to 100 Pa, and the atomic layer deposition method is adopted. The reaction product was simultaneously deposited on both surfaces of the soda-lime glass substrate to obtain high refractive index Al with a thickness of 25nm 2 o 3 Thin film; mix tetraethyl orthosilicate (TEOS), absolute ethanol and hydrochloric acid at room temperature at a molar ratio of 1:49:0.01, stir for 8 hours to obtain a stable and transparent silica sol, and age for 3 days for use; Coating the aged silica sol on the high refractive index Al obtained by the above deposition by pulling method 2 o 3 On the surface of the film, the pulling speed is 1.6mm / s, and the number of pulling times is 1, so that the high refractive index Al 2 o 3 SiO 2 Thin film, ...

Embodiment 3

[0031]Example 3: In the reaction chamber, titanium isopropoxide and water vapor are introduced to react to obtain a reaction product. The temperature of the soda-lime glass substrate is 200° C., the pressure of the deposition chamber in the reaction chamber is set to 100 Pa, and the atomic layer deposition method is adopted. The reaction product was simultaneously deposited on both surfaces of the soda-lime glass substrate to obtain high refractive index TiO with a thickness of 10nm 2 Film; mix methyl orthosilicate, isopropanol and hydrochloric acid at room temperature with a molar ratio of 1:75:0.005, stir for 8 hours to obtain a stable and transparent silica sol, and age for 3 days for use; the aged Silica sol is sprayed on the high refractive index TiO obtained by the above deposition. 2 The surface of the film, thus the high refractive index TiO 2 SiO 2 Thin film, finally high refractive index TiO on the surface of soda lime glass 2 Thin films and SiO 2 The film was cu...

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Abstract

The invention discloses a method for forming a durable dual-layer antireflection film on the surface of soda-lime glass. The method comprises the following steps of: 1) adding a precursor of metal oxide and water steam into a reaction cavity for reaction to obtain a reaction product, and depositing the reaction product on the two surfaces of a base of the soda-lime glass by adopting an atomic layer deposition method to obtain a high refractive index oxide film; 2) taking a silicon source, a solvent and a catalyst as raw materials to prepare silica sol; 3) coating the silica sol prepared in the step 2) to the surfaces of the base of the soda-lime glass obtained in the step 1) by adopting a coating technology so as to form an SiO2 film on the high refractive index oxide film; and 4) solidifying the high refractive index oxide film and the SiO2 film on the surface of the soda-lime glass to obtain the soda-lime glass with the durable dual-layer antireflection film. The method is low in cost and is suitable for large-scale application. The dual-layer film formed on the surface of the soda-lime glass by adopting the method is excellent in antireflection effect and durability.

Description

technical field [0001] The invention belongs to the technical field of glass coating, and in particular relates to a method for forming a durable double-layer anti-reflection film on the surface of soda-lime glass. Background technique [0002] Soda-lime glass, as the most commonly used glass type, is widely used in many fields such as consumer electronics, photovoltaic devices, buildings, and the automotive industry. However, soda-lime glass also has its shortcomings and deficiencies: on the one hand, due to the difference in refractive index with the air, there will be about 8% reflection loss on its surface, which affects the transmittance; on the other hand, especially in the atmosphere In a humid environment, the H in the moisture in the air + The ions will exchange with the alkali metal ions in the soda-lime glass, and at the same time destroy the Si-O-Si network structure in it, resulting in the corrosion of the soda-lime glass and shortening its lifespan. Therefore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34
Inventor 李佳鲁越晖兰品军张贤鹏宋伟杰
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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