Biological template method for preparing antireflection film

An anti-reflection and thin-film technology, applied in nanostructure manufacturing, instruments, coatings, etc., can solve the problems of expensive equipment, difficulty in achieving low cost, mass production, and complexity, and achieve simple process, low cost, and enhanced transparency. The effect of passing or absorbing

Inactive Publication Date: 2008-04-09
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Photolithography, electron beam etching, focused ion beam etching, reactive ion etching, and nanoimprint nanostructure processing techniques have been used to prepare anti-reflective surfaces, but due to the relatively expensive equipment and complicated processes used in these techniques, it is difficult to Meet the requirements of low cost and mass production

Method used

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  • Biological template method for preparing antireflection film
  • Biological template method for preparing antireflection film
  • Biological template method for preparing antireflection film

Examples

Experimental program
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Effect test

Embodiment 1

[0020] (1) Adult cicada wings were ultrasonically cleaned in acetone for 5 minutes, then ultrasonically cleaned in ultrapure water for 2 minutes, and placed in air to dry naturally.

[0021] (2) The cleaned and dried cicada wings are pasted on the surface of the silicon substrate with organic glue, and placed in a vacuum coating machine. -6 Metal Au with a thickness of 300nm was evaporated under the vacuum condition of mbar.

[0022] (3) Take out the evaporated metal sample from the vacuum coating machine, use EPO-TEK 377 organic glue to bond the evaporated metal Au film to another silicon substrate under the condition of curing 1hr at 150°C, and remove the Au film from The surface of the cicada wing is peeled off, and the negative structure corresponding to the surface structure of the cicada wing is obtained on the surface of the Au film (the side that is close to the cicada wing), such as image 3 shown. This metal film is used as a template for secondary replication.

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Embodiment 2

[0025] (1) Adult cicada wings were ultrasonically cleaned in acetone for 5 minutes, then ultrasonically cleaned in ultrapure water for 2 minutes, and placed in air to dry naturally.

[0026] (2) The cleaned and dried cicada wings are pasted on the surface of the silicon substrate with organic glue, and placed in a vacuum coating machine. -6 Metal Au with a thickness of 500nm was evaporated under the vacuum condition of mbar.

[0027] (3) Take out the vapor-deposited metal sample from the vacuum coating machine, and bond the vapor-deposited metal Au film to another silicon substrate with EPO-TEK 377 organic glue at 150°C for 1 hr. The surface of the cicada wing is peeled off, and a negative structure corresponding to the surface structure of the cicada wing is obtained on the surface of the Au film (the side closely attached to the cicada wing). This metal film is used as a template for secondary replication.

[0028] (4) the Au thin film that step (3) is obtained is placed i...

Embodiment 3

[0030] (1) Adult cicada wings were ultrasonically cleaned in acetone for 5 minutes, then ultrasonically cleaned in ultrapure water for 2 minutes, and placed in air to dry naturally.

[0031] (2) The cleaned and dried cicada wings are pasted on the surface of the silicon substrate with organic glue, and placed in a vacuum coating machine. -6 Metal Au with a thickness of 500nm was evaporated under the vacuum condition of mbar.

[0032] (3) Take out the vapor-deposited metal sample from the vacuum coating machine, and bond the vapor-deposited metal Au film to another silicon substrate with EPO-TEK 377 organic glue at 150°C for 1 hr. The surface of the cicada wing is peeled off, and a negative structure corresponding to the surface structure of the cicada wing is obtained on the surface of the Au film (the side closely attached to the cicada wing). This metal film is used as a template for secondary replication.

[0033] (4) the Au thin film that step (3) is obtained is placed i...

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Abstract

A biological template method for preparing anti¿Creflection film includes plating template with biological nanostructure of metal by means of vacuum¿Cvaporization plating to obtain negative structure corresponding to biological template on metal film, using metal negative structure as template to cast organic polymer to obtain organic polymer film having identical nanostructure to biological template on film surface after solidification.

Description

technical field [0001] The invention relates to a new nanostructure preparation technology, in particular to a method for preparing an anti-reflection structure by copying a biological structure as a template, and belongs to the field of nanomaterial preparation. Background technique [0002] There are micro-nano structures on the surface of many organisms in nature. These structures have special biological functions after long-term evolution of biological populations in nature, and are closely related to their survival (Pete Vukusic and J.Roy Sambles, nature 424 (2003) 852-855). For example, the compound eyes and wing surfaces of some insects have conical array nanostructures arranged in a regular hexagon, also known as photonic crystals, as shown in Figure 1. The diameter is 150nm, the top diameter is 65nm, the height is about 400nm, arranged in a regular hexagon, and the center distance is 190nm. Studies have shown that this surface conical array nanostructure has a str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/11B82B1/00B82B3/00G02B1/111
Inventor 刘忠范谢国勇章国明张锦
Owner PEKING UNIV
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