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A double-layer broadband anti-reflection coating with an organic-inorganic hybrid film as the bottom layer

An anti-reflection coating, bottom layer technology, applied in optical components, instruments, optics, etc., can solve the problems of unfavorable industrial application, time-consuming and complicated ammonia treatment process, etc., and achieve the effect of optimal optical stability.

Inactive Publication Date: 2019-10-29
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ammonia treatment process is time-consuming and complicated, which is not conducive to industrial application

Method used

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  • A double-layer broadband anti-reflection coating with an organic-inorganic hybrid film as the bottom layer
  • A double-layer broadband anti-reflection coating with an organic-inorganic hybrid film as the bottom layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add phenyltriethoxysilane, ethyl orthosilicate, absolute ethanol, ammonia water, and water into the reaction vessel in sequence at a mass ratio of 3:10:100:0.5:1, and stir at 30 °C under airtight conditions Reacted for 2 h, then aged for 8 days at room temperature. A phenyltriethoxysilane / orthosilicate hybrid sol was prepared.

[0029] Add vinyltriethoxysilane, ethyl orthosilicate, absolute ethanol, ammonia water, and water into the reaction vessel in sequence at a mass ratio of 5:10:150:1:2, and stir at 35 °C under airtight conditions Reacted for 3 h, then aged for 5 days at room temperature. Vinyltriethoxysilane / tetraethylorthosilicate hybrid sol was prepared.

[0030] Immerse the glass substrate in the phenyltriethoxysilane / orthosilicate hybrid sol, coat the film at a pulling speed of 80 mm / min, and coat the bottom layer on the surface of the glass substrate; the glass substrate coated with the bottom layer The sheet was immersed in vinyl triethoxysilane / tetraethy...

Embodiment 2

[0032] Add phenyltriethoxysilane, ethyl orthosilicate, absolute ethanol, ammonia water, and water into the reaction vessel in sequence at a mass ratio of 6:10:150:0.8:2, and stir at 40 °C under airtight conditions Reacted for 4 h, then aged for 5 days at room temperature. A phenyltriethoxysilane / orthosilicate hybrid sol was prepared.

[0033] Add vinyltriethoxysilane, ethyl orthosilicate, absolute ethanol, ammonia water, and water into the reaction vessel in sequence at a mass ratio of 7:10:200:2:3, and stir at 45 °C under airtight conditions Reacted for 4 h, then aged for 9 days at room temperature. Vinyltriethoxysilane / tetraethylorthosilicate hybrid sol was prepared.

[0034] Immerse the glass substrate in the phenyltriethoxysilane / orthosilicate hybrid sol, coat the film at a pulling speed of 150 mm / min, and coat the bottom layer on the surface of the glass substrate; the glass substrate coated with the bottom layer The sheet was immersed in vinyl triethoxysilane / tetraeth...

Embodiment 3

[0036] Add phenyltriethoxysilane, ethyl orthosilicate, absolute ethanol, ammonia water, and water into the reaction vessel in sequence at a mass ratio of 9:10:200:1:4, and stir at 50 °C under airtight conditions Reacted for 5 h, and then aged for 5 days at room temperature. A phenyltriethoxysilane / orthosilicate hybrid sol was prepared.

[0037] Add vinyltriethoxysilane, ethyl orthosilicate, absolute ethanol, ammonia water, and water into the reaction vessel in sequence at a mass ratio of 8:10:300:2:4, and stir at 45 °C under airtight conditions Reacted for 5 h, then aged for 12 days at room temperature. Vinyltriethoxysilane / tetraethylorthosilicate hybrid sol was prepared.

[0038] Immerse the glass substrate in the phenyltriethoxysilane / tetraethyl orthosilicate hybrid sol, coat the film at a pulling speed of 200 mm / min, and coat the bottom layer on the surface of the glass substrate; the glass substrate coated with the bottom layer The sheet was immersed in vinyl triethoxys...

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Abstract

The invention provides a double-layer wideband antireflection film, the bottom layer of which is an organic-inorganic hybrid film. The bottom layer and the surface layer of the double-layer wideband antireflection film are respectively the organic-inorganic hybrid film. The bottom layer is a phenyltriethoxysilane / tetraethoxysilane hybrid film; and the surface layer is a vinyltriethoxysilane / tetraethoxysilane hybrid film. The preparation method comprises the following steps: soaking a glass substrate into a phenyltriethoxysilane / tetraethoxysilane hybrid sol and carrying out film plating ata certain pulling rate to plate the bottom layer on the surface of the glass substrate; and soaking the glass substrate plated with the bottom layer into the phenyltriethoxysilane / tetraethoxysilanehybrid sol and carrying out film plating at a certain pulling rate to prepare the double-layer antireflection film plated with the bottom layer and the surface layer, and carrying out thermal treatment. The double-layer wideband antireflection film has a good broadband antireflection effect and a good optical stability.

Description

technical field [0001] The invention belongs to the field of optical film preparation, in particular to a double-layer broadband anti-reflection film whose bottom layer is an organic-inorganic hybrid film. Background technique [0002] Anti-reflection coatings are widely used on the surface of optical components in optical systems such as high-energy laser systems, flat-panel displays, and cameras. With the expansion of the application range, broadband anti-reflection coatings that can achieve anti-reflection in a wider wavelength range have been extensively studied. [0003] The silica broadband anti-reflection coating prepared by the sol-gel method is currently the only broadband anti-reflection coating used in high-energy laser systems. The commonly used sol-gel silica anti-reflection coatings are mostly inorganic thin films, which have strong polarity, and are easy to attach only polar pollutants from the environment during use, and have poor optical stability. Through...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/111
CPCG02B1/111
Inventor 张欣向郑加贤黄雨东杨文斌
Owner FUJIAN AGRI & FORESTRY UNIV