Method for preparing nano-mesh film
A nano-network and thin-film technology, applied in the direction of nanotechnology, nanotechnology, nanostructure manufacturing, etc., can solve the problems of not obtaining a network structure, etc., and achieve high monodispersity and long-range order, good mechanical strength and flexibility sexual effect
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Embodiment 1
[0015] The nanonet film provided by the invention is prepared according to the following steps.
[0016] 1) Polystyrene (PS) colloidal particle emulsion (solvent is water) with a diameter of 500nm synthesized by a soap-free emulsion polymerization method with a volume fraction of 10%, diluted with ethanol at a volume ratio of 1:1, and ultrasonically mixed and dispersed Uniformly, the colloidal sphere dispersion liquid is obtained for later use.
[0017] 2) Use a mixture of concentrated sulfuric acid and hydrogen peroxide (volume ratio 7:3) to treat a glass piece (1cm×1cm) at 100°C for 2 hours, and then place the hydrophilized glass piece in a petri dish with a diameter of 6cm In the center, add water around the glass slide until it is nearly but not submerged.
[0018] 3) Add 10 μL of the colloidal sphere dispersion onto the glass slide with a micropipette. Under the action of surface tension, the colloidal sphere dispersion will automatically spread around and form a colored...
Embodiment 2
[0025] The double-layer nano-net film provided by the present invention is prepared according to the following steps.
[0026] 1) The nanomesh prepared according to Example 1 is fished out from the floating liquid surface with any substrate to obtain a solid substrate (such as a Si substrate) loaded with a single-layer nanomesh.
[0027] 2) After the above-mentioned substrate loaded with a single-layer nanonet film is dried, insert the substrate again under the liquid surface floating with a single-layer nanonet film, and pull it out to obtain a substrate loaded with a double-layer nanonet film , corresponding to figure 2 as shown in b.
Embodiment 3
[0029] According to the following steps, the nanonet provided by the present invention is prepared as a patterned mask in nanofabrication.
[0030]Using a single-layer nano-net film or a double-layer nano-net film as a mask, thermal evaporation is used to deposit other substances on the substrate, and the nano-net mask is removed with tape to obtain a regular patterned nanoparticle array on the substrate. For example, using a single-layer nanonet as a mask, a regular array of disc-shaped gold nanoparticles arranged in a hexagonal arrangement can be obtained according to the existing conventional thermal evaporation deposition method; using a double-layer nanonet with different stacked phases as a mask, Depositing gold by thermal evaporation can obtain leaf-shaped gold nanoparticles, and its arrangement and size are different according to the double-layer nanomesh mask of different superimposed phases, such as a gold nano-blade array arranged in a square, a gold nano-particle ar...
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