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Moth compound eye bionic optical device based on super-resolution laser radiation and 3D printing method and application thereof

A technology of bionic optics and laser radiation, applied in the direction of photosensitive materials, optics, 3D object support structures, etc. used in optomechanical equipment, to achieve high response threshold and improve responsiveness

Active Publication Date: 2021-01-05
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But even the two-photon polymerization laser direct writing technology with the highest resolution currently has room for improvement in resolution.

Method used

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  • Moth compound eye bionic optical device based on super-resolution laser radiation and 3D printing method and application thereof
  • Moth compound eye bionic optical device based on super-resolution laser radiation and 3D printing method and application thereof
  • Moth compound eye bionic optical device based on super-resolution laser radiation and 3D printing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] figure 1 It is a schematic flow chart of the 3D printing method of the moth compound eye bionic device based on super-resolution laser radiation in Example 1. like figure 1 As shown, the 3D printing method of the moth compound eye bionic device is as follows:

[0037] 1. With 50wt% pentaerythritol triacrylate (PETA), 3%wt% photoinitiator 819, 1wt% 2,2,6,6-tetramethylpiperidinyloxy (TEMPO), 23wt% After mixing dodecyl acetate and 23wt% octadecyl acetate, treat it in an ultrasonic bath at 50°C for 40 minutes to obtain a homogeneous mixture, and then fill it with nitrogen to remove the oxygen in it to prepare a photoresist;

[0038] 2. The photoresist was used as the printing material by two-photon microprinting method, and 201( figure 2 ) print photoresist 301 (thickness is 1μm), such as image 3 shown.

[0039]3. Under a nitrogen atmosphere, a six-axis precision manipulator is used to manipulate the double-beam laser (laser irradiation power is 100W, wavelength is 1...

Embodiment 2

[0045] The difference from Example 1 is that the photoresist described in step 1 is 53wt% of pentaerythritol triacrylate (PETA), 2%wt% of photoinitiator 907, 1wt% of 2,2,6,6- Tetramethylpiperidinyloxy (TEMPO), 22 wt% dodecyl acetate and 22 wt% octadecyl acetate. The hemispherical base material in step 2 is polymethyl methacrylate (PMMA). The diameter of the hemispherical substrate is 25 mm, and the thickness of the photoresist printed on the substrate is 2 μm. The irradiation power of the double-beam laser described in step 3 is 120mW, the wavelength is 353nm, and the cylinder array of the compound eyes of the bionic moth is printed on the hemispherical substrate with a diameter of 500nm and a height of 2μm, and the distance between the centers of adjacent cylinders is 1000nm. The acetone described in step 4 was ultrasonically cleaned at 60° C. for 20 minutes, and then cleaned with isopropanol and deionized water for 5 minutes. Conductive silver ink described in step 5 (sil...

Embodiment 3

[0047] The difference from Example 1 is that the photoresist described in step 1 is 51wt% of pentaerythritol triacrylate (PETA), 2wt% of photoinitiator 369, 2wt% of 2,2,6,6-tetramethyl piperidinyloxy (TEMPO), 22 wt% dodecyl acetate and 23 wt% octadecyl acetate. The hemispherical base material in step 2 is polyimide (PI). The diameter of the hemispherical substrate is 23 mm, and the thickness of the photoresist printed on the substrate is 1.5 μm. The irradiation power of the double-beam laser described in step 3 is 110mW, the wavelength is 253nm, and the cylinder array of the bionic moth compound eyes is printed on the hemispherical substrate with a diameter of 480nm and a height of 1.5μm. The distance between the centers of adjacent cylinders is 900nm. The acetone described in step 4 was ultrasonically cleaned at 55° C. for 15 minutes, and then cleaned with isopropanol and deionized water for 4 minutes. Conductive silver ink described in step 5 (silver content is 25wt%, ele...

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Abstract

The invention belongs to the technical field of photocuring printing, and discloses a moth compound eye bionic optical device based on super-resolution laser radiation and a 3D printing method and application thereof. The method comprises the following steps of printing photoresist on a hemispherical substrate by adopting a double-photon micro-printing method to obtain a photoresist layer; under the atmosphere without oxygen atoms, superposing the single-side double laser beams into double-beam laser to move along the spherical surface of the hemispherical substrate, and printing a bionic mothcompound eye cylinder array on the hemispherical substrate; ultrasonically cleaning with acetone, and then cleaning with a solvent to prepare a cylinder array on the hemispherical substrate; coatingthe top surface of the cylinder array with conductive silver ink by adopting a stamping method, and preparing a stamping silver layer on the top surface of the cylinder array; and then carrying out supercritical drying to obtain the moth compound eye bionic optical device. The bionic device has special optical characteristics, can absorb light with specific frequency and all incident electromagnetic radiation, and can be used for sensitive omnidirectional light absorption and multi-band frequency spectrum detection.

Description

technical field [0001] The invention belongs to the technical field of photocuring printing, and more specifically relates to a moth compound eye bionic optical device based on super-resolution laser radiation and its 3D printing method and application. Background technique [0002] Complex three-dimensional micro-nano structures are in great demand in the fields of micro-nano electromechanical systems, biomedicine, tissue engineering, new materials, microfluidic devices, micro-nano optical devices, micro-nano sensors, micro-nano electronics, biochips, optoelectronics, and printing. . Micro-nano-scale 3D printing has outstanding potential and advantages in manufacturing complex three-dimensional micro-nano structures. At present, there are four main types of micro-nano-scale 3D printing processes. The first is micro-stereolithography. This printing method uses a small laser spot to cure only a small area of ​​the resin. It is characterized by low cost, high efficiency, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/135G03F7/004G03F7/027B33Y10/00B33Y70/00
CPCB29C64/135G03F7/004G03F7/027B33Y10/00B33Y70/00Y02P10/25
Inventor 姚瑶陈云侯茂祥丁树权龙俊宇陈新高健
Owner GUANGDONG UNIV OF TECH
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