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Flexible perovskite solar cell with metal grid graphene composite electrode and preparation method thereof

A graphene composite, solar cell technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problem of high square resistance of graphene

Inactive Publication Date: 2017-02-15
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, in order to solve the problem of high square resistance of graphene, the object of the present invention is to provide a flexible perovskite solar cell with a metal grid graphene composite electrode and a preparation method thereof, which uses a composite structure to reduce the square resistance of graphene, While ensuring high light transmittance

Method used

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  • Flexible perovskite solar cell with metal grid graphene composite electrode and preparation method thereof

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Embodiment 1

[0024] The structure of the flexible perovskite solar cell based on the metal grid graphene composite electrode of the present embodiment is as follows: figure 1 Shown, the preparation method steps of the flexible perovskite solar cell based on the metal grid graphene composite electrode of the present embodiment are as follows:

[0025] 1. Prepare the metal grid 201: Coat the UV-curable resin 7um on the flexible substrate 101PET, use the nanoimprint process to pattern it, and make a regular quadrilateral nickel mold by electroforming, with a side length of 80um and a width of 2um, the height is 1um. Under ultraviolet light, a nickel mold (0.25g pressure) was used to imprint a resin with a regular quadrilateral groove structure. The grooves were filled with Ag ink, and finally the excess ink was scraped off. Repeat three times to completely fill the grooves. An embedded Ag grid structure is formed.

[0026] 2. Using chemical vapor deposition (CVD) to prepare a single-layer g...

Embodiment 2

[0030] The structure of the flexible perovskite solar cell based on the metal grid graphene composite electrode of the present embodiment is as follows: figure 1 Shown, the preparation method steps of the flexible perovskite solar cell based on the metal grid graphene composite electrode of the present embodiment are as follows:

[0031] 1. Prepare the metal grid 201: Coat the UV-curable resin 7um on the flexible substrate 101PET, use the nanoimprint process to pattern it, and make a regular hexagonal nickel mold by electroforming, the diagonal of which is 90um, The width is 4um and the height is 2um. Under ultraviolet light, a nickel mold (0.25g pressure) was used to imprint a resin with a regular hexagonal groove structure, the groove was filled with Ag ink, and finally the excess ink was scraped off, and the groove was completely filled by repeating three times. An embedded Ag grid structure is formed.

[0032] 2. Prepare redox graphene (RGO) 202 by spin coating to form c...

Embodiment 3

[0036] The structure of the flexible perovskite solar cell based on the metal grid graphene composite electrode of the present embodiment is as follows: figure 1 Shown, the preparation method steps of the flexible perovskite solar cell based on the metal grid graphene composite electrode of the present embodiment are as follows:

[0037] 1. Prepare the metal grid 201: Coat the flexible substrate 101PEN with a 7um UV-curable resin, pattern it using a photolithography process, and obtain a resin with a regular triangular groove structure under UV light, the side length of which is 100um, width 2um, height 1um. The groove is filled with Ag ink, and finally the excess ink is scraped off, repeating three times so that the groove is completely filled. An embedded Ag grid structure is formed.

[0038] 2. Using chemical vapor deposition (CVD) to prepare a single-layer graphene film 202 on the copper foil, and transfer it to the metal grid to form the composite metal grid graphene co...

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Abstract

The invention belongs to the field of semiconductor photo-electronic devices and particularly relates to a flexible perovskite solar cell with a metal grid graphene composite electrode and a preparation method thereof. The flexible perovskite solar cell with the metal grid graphene composite electrode sequentially comprises a flexible substrate, a metal grid graphene composite photo-electrode, a first carrier transporting layer, a perovskite light absorption layer, a second carrier transporting layer and a back electrode. The metal grid graphene composite photo-electrode is a composite electrode structure which is composed of an embedded metal grid and graphene; the grid structure is a regular triangle, a regular quadrangle or a regular hexagon. The solar cell structure has the advantages of being flexible, light, thin, low in cost, high in efficiency and etc.; various products can be developed by utilizing the flexibility of the solar cell, so that the flexible perovskite solar cell with the metal grid graphene composite electrode is more diversified in application; meanwhile, a road is opened up for adoption of a large-batch and large-area reel-to-reel technology, and a new idea is provided for final commercialization of perovskite.

Description

technical field [0001] The invention belongs to the field of semiconductor optoelectronic devices, and in particular relates to a flexible, thin, high-efficiency, and low-cost planar heterojunction perovskite solar cell and its preparation. Background technique [0002] With the depletion of non-renewable resources such as coal, oil and natural gas, new energy, especially solar cells, has become a hot spot of research at home and abroad. Traditional silicon cells are relatively expensive, dye-sensitized cells have many limitations in preparation technology, and organic solar cells have a simple structure but poor stability. Therefore, they still have many problems in industrialization. Since the first report in 2009, perovskite solar cells have been favored by researchers for their ultra-low-cost solution preparation process. The energy conversion efficiency has increased from the initial 3.8% to 20.2%. With the deepening of research, The efficiency of the cell is very like...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K30/00H10K30/83H10K30/81H10K30/82Y02E10/549
Inventor 冷重钱陆仕荣杨俊汤林龙姬乙雄麻超燕陈伟罗伟魏兴战史浩飞
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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