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Method for preparing composite transparent conductive electrode based on metal grid and metal nano-wire

A technology of transparent conductive electrodes and metal nanowires, applied in circuits, electrical components, semiconductor devices, etc., can solve the problems of single-variable metal grid structure difficulty and reduce light transmittance, and achieve excellent light transmittance and electrical conductivity. , the effect of easy industrialization

Active Publication Date: 2015-06-03
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods are beneficial to the collection and transportation of carriers, thereby reducing the resistance, but this will greatly reduce the light transmittance
In particular, the preparation of liquid phase templates often has a certain degree of randomness, and it is difficult to control a single variable of the metal grid structure.

Method used

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  • Method for preparing composite transparent conductive electrode based on metal grid and metal nano-wire
  • Method for preparing composite transparent conductive electrode based on metal grid and metal nano-wire
  • Method for preparing composite transparent conductive electrode based on metal grid and metal nano-wire

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Embodiment 1

[0045] This embodiment provides a method for preparing a composite transparent conductive electrode based on metal grids and metal nanowires, such as figure 1 As shown, wherein (1) represents the deposition of the sacrificial layer template, (2) represents the formation of cracks in the sacrificial layer, (3) represents the metal film deposition, (4) represents the removal of the sacrificial layer template to form a metal mesh film, ( 5) represents the formation of a composite electrode: wherein: 1 represents a metal network wire, 2 represents a mesh, and 3 represents a metal nanowire.

[0046] The detailed process of each step is as follows:

[0047] (1) Preparation of sacrificial layer template

[0048] First, prepare the template solution: use egg white as the raw material, add deionized water (the volume ratio of deionized water to egg white is 1:3) to the egg white liquid, ultrasonically clean for 30 minutes, and leave to stand for 6 hours to remove the impurities in the...

Embodiment 2

[0059] This embodiment provides a method for preparing a composite transparent conductive electrode based on metal grids and metal nanowires, such as figure 1 Shown, wherein (1) deposition of sacrificial layer film; (2) heating film, forms the sacrificial layer template of crack; (3) deposition of metal film; (4) removes sacrificial layer template, forms metal mesh film; (5 ) to coat the metal nanowires to complete the preparation of the composite electrode.

[0060] The detailed process of each step is as follows:

[0061] (1) Preparation of sacrificial layer template

[0062]First, prepare the template liquid: use egg white as raw material, add deionized water (the volume ratio of deionized water to egg white is 1:4) to the egg white liquid, ultrasonically clean it for 40 minutes, leave it to stand for 8 hours, and remove the impurities in the lower layer. Obtain a transparent pale yellow template liquid; then, adopt the spin coating method to deposit a sacrificial layer t...

Embodiment 3

[0073] This embodiment provides a method for preparing a composite transparent conductive electrode based on metal grids and metal nanowires, such as figure 1 Shown, wherein (1) deposition of sacrificial layer film; (2) heating film, forms the sacrificial layer template of crack; (3) deposition of metal film; (4) removes sacrificial layer template, forms metal mesh film; (5 ) to coat the metal nanowires to complete the preparation of the composite electrode.

[0074] The detailed process of each step is as follows:

[0075] (1) Preparation of sacrificial layer template

[0076] First, prepare the template solution: use egg white as the raw material, add deionized water (the volume ratio of deionized water to egg white is 1:2) to the egg white liquid, ultrasonically clean it for 60 minutes, and leave it to stand for 10 hours to remove the impurities in the lower layer. A transparent light yellow template solution was obtained. Then, the sacrificial layer film was deposited o...

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Abstract

The invention discloses a method for preparing a composite transparent conductive electrode based on a metal grid and a metal nano-wire. The method comprises the following steps: (1) preparing a template solution; (2) manufacturing a sacrificial layer template; (3) depositing a metal thin film; (4) removing the sacrificial layer template; (5) synthesizing the metal nano-wire; and (6) coating the metal nano-wire to prepare the composite transparent conductive electrode. The composite transparent conductive electrode prepared by the method has excellent photoelectric property and environment stability; meanwhile, the electrode in a photoelectric device can be easily in contact with other functional layers; the preparation process is simple and the resource consumption is low; the composite transparent conductive electrode is a good substitute of a traditional metal oxide electrode, and the efficiency of a solar battery can be improved and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of transparent conductive electrodes, in particular to a method for preparing composite transparent conductive electrodes based on metal grids and metal nanowires. Background technique [0002] The transparent conductive front electrode is one of the important components of photovoltaic devices such as solar cells, which has a significant impact on the short-circuit current and fill factor of solar cells. Generally speaking, a transparent conductive electrode means that the transmittance to the spectrum of the incident light wavelength range between 380nm and 780nm is greater than 80%, and the resistivity is lower than 10. -3 Ω·cm film electrode. In 1907, Badeker reported the translucent conductive CdO material for the first time. Until the Second World War, the transparent conductive film (Transparent conductive film, TCF) material did not get enough attention and application. Today, TCF materials (such ...

Claims

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Application Information

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IPC IPC(8): H01L31/0224H01L31/18
CPCY02P70/50
Inventor 高进伟彭强韩兵李若朋陈晓鹏
Owner SOUTH CHINA NORMAL UNIVERSITY
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