Embedded polymer/metal grid flexible transparent electrode and its preparation method and application

A technology of transparent electrodes and metal grids, which is applied in the manufacture of cables/conductors, circuits, electrical components, etc., can solve the complex preparation and processing process of carbon nanotubes and graphene, the haze of metal nanowires is large, and the preparation process is complex and expensive. and other problems, to achieve the effect of overcoming the mutual restriction of electrical conductivity and light transmittance, good optoelectronic properties and mechanical stability, and overcoming the high cost of materials

Active Publication Date: 2022-06-28
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can obtain a transparent conductive film with good photoelectric performance, the etching process cannot achieve high aspect ratio, poor mechanical properties, and the etching process is seriously polluted and costly.
[0006] In summary, the prior art exists: ① ITO is brittle, easy to break, has little reserves, and the indium element is poisonous, and the surface roughness of the electrode is large, which will cause problems such as high current leakage in OLED devices; ② conductive polymers have poor stability and low conductivity ③ carbon nanotubes and graphene preparation and treatment process is complicated, the node resistance is large, and there is a problem of mutual restriction between conductivity and transmittance; ④ metal nanowires have large haze, roughness, and node resistance; ⑤ metal mesh Poor mechanical properties, poor adhesion, large surface roughness, and complicated and expensive preparation process

Method used

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  • Embedded polymer/metal grid flexible transparent electrode and its preparation method and application
  • Embedded polymer/metal grid flexible transparent electrode and its preparation method and application
  • Embedded polymer/metal grid flexible transparent electrode and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] figure 1 It is a schematic diagram of an embedded PCL / Ni flexible grid transparent electrode to be manufactured by the present invention, and its structure is as shown in the figure. The parameters of the PCL / Ni flexible mesh transparent electrode to be manufactured in this example are: line width 5 μm, period 100 μm, and aspect ratio 5:1.

[0071] Taking the embedded PCL / Ni flexible mesh transparent electrode described in the implementation example as an example, combined with Figure 1-Figure 6 , which specifies the specific process of fabricating embedded PCL / Ni flexible mesh transparent electrodes based on the proposed method and device.

[0072] Step 1: Print the PCL ordered grid structure.

[0073] The self-developed electric field-driven melt jet deposition micro-nano 3D printer was used to print a large aspect ratio, narrow linewidth polycaprolactone (PCL) ordered grid on a glass substrate spin-coated with a polyvinyl alcohol (PVA) film. The overall size of t...

Embodiment 2

[0098] The parameters of the embedded PCL / Cu flexible mesh transparent electrode to be fabricated in this example are: line width 8 μm, period 100 μm, and aspect ratio 5:1.

[0099] The specific process of fabricating embedded PCL / Cu flexible mesh transparent electrodes:

[0100] Step 1: Print the PCL ordered grid structure.

[0101] The self-developed electric field-driven melt jet deposition micro-nano 3D printer was used to print a large aspect ratio, narrow linewidth polycaprolactone (PCL) ordered grid on a glass substrate spin-coated with a polyvinyl alcohol (PVA) film. The overall size of the grid in the implementation example is 100×100mm. By controlling the line width and period of PCL, high light transmittance can be achieved. The line width is controlled at 3μm, the period is selected as 100μm, and the aspect ratio is 5:1. Polycaprolactone (Polycaprolactone) produced by Aladdin Company was selected as the printing material.

[0102] Specific process:

[0103] (1) ...

Embodiment 3

[0126] The parameters of an embedded PLA / Cu flexible mesh transparent electrode to be fabricated in this example are: line width 6 μm, period 200 μm, and aspect ratio 4:1.

[0127] The specific process of fabricating embedded PLA / Cu flexible mesh transparent electrodes:

[0128] Step 1: Print the PLA ordered grid structure.

[0129] Using a self-developed electric field-driven melt jet deposition micro-nano 3D printer to print a large aspect ratio, narrow linewidth polylactic acid (PLA) ordered grid on a glass substrate spin-coated with a polyvinyl alcohol (PVA) film, this example The overall size of the grid is 100 × 100 mm. By controlling the line width and period of PLA, high light transmittance can be achieved. The line width is controlled at 3 μm, the period is 200 μm, and the aspect ratio is 4:1. The printing material is Polylactic acid produced by Aladdin.

[0130] Specific process:

[0131] (1) Preprocessing. Design the size and line period of the required grid acc...

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Abstract

The invention relates to an embedded polymer / metal grid flexible transparent electrode, a preparation method and an application. It includes a support layer, a photoresist layer, and a protective film. The photoresist layer is located between the support substrate and the protective film. The photoresist layer has a grid structure next to the protective film. The grid structure is formed by grooves. The grooves face One end of the protective film is open, the inner wall is provided with a metal coating, the inner side of the metal coating is coated with a polymer structure, the opening end of the groove is a metal seed layer, and the metal seed layer is close to the protective film. The preparation method is as follows: use the method of electric field-driven fusion jet deposition micro-nano 3D to print the grid structure, deposit the metal seed layer, transfer the polymer grid structure to the supporting substrate, deposit the metal coating by electroforming, coat the photoresist, support layer, remove the supporting base, and stick the protective film. Embedded flexible mesh transparent electrodes with high resolution, large aspect ratio, bending resistance, and high optoelectronic performance are obtained.

Description

technical field [0001] The invention belongs to the technical field of metal material preparation, and in particular relates to an embedded polymer / metal grid flexible transparent electrode and a preparation method and application. Background technique [0002] The information disclosed in this Background section is only for enhancement of understanding of the general background of the invention and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] With the advent of the 21st century, science and technology have developed rapidly, and electronic products have gradually changed to the direction of intelligence. In the process of realizing intelligence, various electronic components such as liquid crystal displays, organic light-emitting diodes, electrochromic devices , smart windows, solar photovoltaic devices, etc. play a pivotal role, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B5/14H01B1/22H01B13/00
CPCH01B5/14H01B1/22H01B13/00
Inventor 朱晓阳张厚超兰红波李红珂李政豪
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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