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Manufacturing method of transparent conductive electrode, transparent conductive electrode and solar cell

A technology of transparent conductive electrodes and solar cells, which is applied in the field of solar cells, can solve the problems of large square resistance, poor thermal stability, and easy spontaneous diffusion of transparent conductive electrodes, so as to improve photoelectric conversion efficiency, reduce production costs, and increase mobility. Effect

Pending Publication Date: 2020-07-03
紫石能源有限公司
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Problems solved by technology

[0003] The structure of thin-film solar cells includes transparent conductive electrodes, which have a crucial impact on the energy conversion efficiency of solar cells. Currently, the materials used to make transparent conductive electrodes are metal oxide materials, such as indium tin oxide (ITO), Fluorine tin oxide (FTO), also known as conductive glass, although the above-mentioned metal oxide materials are widely used in the field of solar cells, it also has disadvantages, specifically, the metal ions in the metal oxide are easy to spontaneously diffuse and have poor thermal stability. and strong absorption in the infrared spectrum
In addition, when using the above-mentioned metal oxide materials to make transparent conductive electrodes, it is also necessary to coat a layer of platinum film on the surface of the transparent conductive electrodes to enhance its conductivity, which greatly increases the production cost of solar cells.
[0004] In order to solve the above problems, in the prior art, intrinsic graphene is used to replace metal oxides to make transparent conductive electrodes, but the square resistance of the transparent conductive electrodes made of intrinsic graphene in the prior art is relatively large, which reduces the photoelectric conversion of solar cells. efficiency

Method used

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  • Manufacturing method of transparent conductive electrode, transparent conductive electrode and solar cell
  • Manufacturing method of transparent conductive electrode, transparent conductive electrode and solar cell

Examples

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Effect test

Embodiment 1

[0082] Embodiment 1, make perovskite solar cell

[0083] 1) Slowly add flake graphite with a mass of 3g and a particle size of 300 mesh into 100ml of concentrated sulfuric acid with a concentration of 98%, then slowly add 5g of potassium permanganate to the concentrated sulfuric acid mixture, and set the temperature in a water bath at 320°C to 350°C Stir the above-mentioned concentrated sulfuric acid mixture for 2-30 minutes, then slowly add 100ml of distilled water to the concentrated sulfuric acid mixture, and use an ultrasonic device to ultrasonically vibrate the concentrated sulfuric acid mixture to obtain a graphene oxide mixture. Filtrating the graphene oxide mixed liquid to obtain a graphene oxide product, and drying the graphene oxide product to obtain graphene oxide particles.

[0084] 2) Using ammonium carbonate (NH 4 ) 2 CO 3 As a nitrogen source, graphene oxide particles and ammonium carbonate were mixed and dispersed in an aqueous solution at a mass ratio of 1:...

Embodiment 2

[0089] Embodiment 2, making organic polymer solar cell

[0090] 1) Slowly add flake graphite with a mass of 3g and a particle size of 300 mesh into 100ml of concentrated sulfuric acid with a concentration of 98%, then slowly add 5g of potassium permanganate to the concentrated sulfuric acid mixture, and set the temperature in a water bath at 320°C to 350°C Stir the above-mentioned concentrated sulfuric acid mixture for 2-30 minutes, then slowly add 100ml of distilled water to the concentrated sulfuric acid mixture, and use an ultrasonic device to ultrasonically vibrate the concentrated sulfuric acid mixture to obtain a graphene oxide mixture. Filtrating the graphene oxide mixed liquid to obtain a graphene oxide product, and drying the graphene oxide product to obtain graphene oxide particles.

[0091] 2) adding 100ml, concentration is 3% hydrogen peroxide (H 2 o 2 ), after the reaction finishes, filter the mixed solution to obtain the graphene reaction product. Concentratio...

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Abstract

The invention provides a method for manufacturing a transparent conductive electrode for a solar cell. The method comprises the steps: providing a substrate; forming plural layers of nitrogen-doped graphene films on the substrate; and carrying out heat treatment on the substrate on which the nitrogen-doped graphene film is formed, so that the nitrogen-doped graphene film is recrystallized to obtain the transparent conductive electrode. The invention also provides a transparent conductive electrode prepared by the manufacturing method, and a solar cell comprising the transparent conductive electrode. According to the manufacturing method of the transparent conductive electrode, the transparent conductive electrode is manufactured by adopting the multiple layers of nitrogen-doped graphene films, so that the conductivity of the transparent conductive electrode is effectively improved while the manufacturing cost is reduced.

Description

technical field [0001] The present invention relates to the technical field of solar cells, in particular to a method for manufacturing a transparent conductive electrode for a solar cell, a transparent conductive electrode prepared by the manufacturing method, and a solar cell including the transparent conductive electrode. Background technique [0002] As a renewable and clean energy, solar energy has been the research focus of countries all over the world since the 21st century, and the most representative one is the field of photovoltaic technology with solar cells as the core. There are many kinds of solar cells, among which thin-film solar cells have gradually become the focus of research in the field due to their advantages in flexibility and manufacturing cost. [0003] The structure of thin-film solar cells includes transparent conductive electrodes, which have a crucial impact on the energy conversion efficiency of solar cells. Currently, the materials used to make...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48H01L51/44
CPCH10K71/60H10K30/82Y02E10/549Y02P70/50
Inventor 李静文刘琦
Owner 紫石能源有限公司
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