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Nano-linking method based on photo-curing with nonlinear frequency shift effect

A nonlinear, photocurable technology, applied in the field of photocurable nanolinks that break through the diffraction limit of traditional optics

Active Publication Date: 2013-10-09
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, limited by the optical diffraction limit, the limit precision of UV curing is generally on the order of microns. Even with deep ultraviolet lithography technology, the limit precision of photolithographic patterns is still on the order of hundreds of nanometers, which cannot be used for precise preparation of finer Structure

Method used

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  • Nano-linking method based on photo-curing with nonlinear frequency shift effect
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  • Nano-linking method based on photo-curing with nonlinear frequency shift effect

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Embodiment 1

[0033] Prepare self-assembled nano-particle microstructures on the surface of a solid substrate, and apply the nano-linking method proposed in the present invention to link the nanoparticles. The specific preparation process steps are as follows Figure three Shown:

[0034] The first step: a layer of organic polymer film 7 is prepared on the surface of the solid substrate 6.

[0035] Step 2: Using chemical self-assembly technology, deposit nanoparticles 1 with surface plasmon resonance characteristics on the surface of organic polymer 7. The spacing of nanoparticles 1 can be controlled by self-assembly technology. In order to achieve effective linkage, the spacing is generally zero to Between tens of nanometers.

[0036] The third step: drip or spin-coating the ultraviolet photosensitive polymer 2 on the surface of the substrate, and irradiate the sample with a low-frequency visible or near-infrared light source. The incident light forms a significant local light scattering enhanc...

Embodiment 2

[0041] The nano-linking method proposed by the present invention is used to directly realize the nano-particle linking in the ultraviolet photosensitive polymer 2 solution. The specific steps include:

[0042] The first step: using an optical method, dope high-concentration nanoparticles 1 with surface plasmon resonance characteristics in the ultraviolet photosensitive polymer 2 solution.

[0043] Step 2: Add chemicals to the solution of UV-sensitive polymer 2 and wrap it on the surface of nanoparticle 1 to form a stable chemical coordination bond, so that nanoparticle 1 can form dynamic self-assembly in the solution, with the nanoparticle spacing between zero and Between tens of nanometers.

[0044] The third step: irradiate the ultraviolet photosensitive polymer 2 solution with a low-frequency visible light or near-infrared light source. The incident light forms a significant local light scattering enhancement between the dynamically self-assembled nanoparticles 1, and the non-li...

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Abstract

A nano-linking method based on photo-curing with nonlinear frequency shift effect is disclosed, which specifically comprises the following steps of: step 1, placing nano-particles close to each other and with surface plasma resonance characteristic in an ultraviolet photosensitive polymer; step 2, irradiating the ultraviolet photosensitive polymer by a low-frequency visible light, and releasing a high-frequency light because the incident low-frequency visible light generates great light scattering reinforcement among the nano-particles close to each other and with surface plasma resonance characteristic, and generates remarkable nonlinear frequency shift effect; and step 3, absorbing a multi-frequency light and curing by the ultraviolet photosensitive polymer in an area among the nano-particles with surface plasma resonance characteristic to form a photo-cured polymer, and permanently connecting a plurality of nano-particles with surface plasma resonance characteristic together to obtain nano-microstructures with different shapes. The nano-linking method disclosed by the invention has an ultrahigh resolution which breaks through diffraction limit, and can realize selective linkage for nano-materials according to design proposal.

Description

technical field [0001] The invention belongs to the field of nano-manufacturing technology, and in particular relates to a photo-cured nano link method based on nonlinear frequency shift effect, more precisely, a photo-cured nano link method that breaks through the traditional optical diffraction limit. Background technique [0002] Permanently linking nanomaterials together to make complex nanodevices is an important research problem in the field of nanofabrication technology. Since the 1980s, the research on nanomaterials has gradually heated up, and the controllable growth of nanomaterials is no longer a technical challenge. Researchers have done a lot of research work, conducted a lot of experimental research on the optical, mechanical, electrical and thermal properties of nanomaterials, and predicted that nanomaterials are expected to be applied in many fields and greatly improve people's lives. However, from the preparation of nanomaterials to the development of nanod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B82B3/00
Inventor 张彤张晓阳李若舟王龙德
Owner SOUTHEAST UNIV
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