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Trans-flexible perovskite solar cell and preparation method thereof

A solar cell and perovskite technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of being unsuitable for flexible perovskite solar cells and poor performance of flexible perovskite solar cells, and achieve high photoelectric conversion efficiency , high open circuit voltage Voc, and good long-term stability

Pending Publication Date: 2022-03-25
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, the substrate materials commonly used in flexible solar cells such as PET (polyethylene phthalate), PEN (polyethylene naphthalate) and other flexible substrates, considering that flexible polymer substrates cannot withstand temperature For a long time above 150 °C, there are strict restrictions on the processing of different functional layers and the materials used, so the structure that requires high temperature sintering is not suitable for the development of flexible perovskite solar cells
Second, compared with rigid perovskite solar cells, the performance of flexible perovskite solar cells is slightly worse

Method used

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  • Trans-flexible perovskite solar cell and preparation method thereof
  • Trans-flexible perovskite solar cell and preparation method thereof
  • Trans-flexible perovskite solar cell and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Step 1, flexible substrate pretreatment

[0048] Wash the cut 15*20cm flexible substrate in deionized water for 30 minutes, put it in a clean oven to dry, and obtain the cleaned flexible substrate, which is made of PI material;

[0049] Step 2, preparing a conductive film electrode layer on the cleaned flexible substrate

[0050]Metallic nickel was plated on the flexible substrate by electron beam evaporation with a thickness of 200nm, and the conductive metal oxide ITO was sputtered onto the metal layer with a power of 180W by magnetron sputtering;

[0051] Step 3, preparing a hole transport layer film on the conductive film electrode

[0052] Nickel oxide hole transport layer thin film is plated on the conductive substrate by electron beam evaporation method, the thickness is 15nm;

[0053] Step 4, preparing a perovskite light-absorbing layer film on the hole transport layer film

[0054] The 1.4M perovskite precursor solution was composed of FAI, PbI 2 , MABr, Pb...

Embodiment 2

[0060] Step 1, flexible substrate pretreatment

[0061] Wash the cut 15*20cm flexible substrate in deionized water for 30 minutes, put it in a clean oven to dry, and obtain the cleaned flexible substrate, which is made of PI material;

[0062] Step 2, preparing a conductive film electrode layer on the cleaned flexible substrate

[0063] Metal titanium is plated on the flexible substrate by electron beam evaporation method with a thickness of 200nm, and the conductive metal oxide ITO is sputtered onto the metal layer with a power of 180W by magnetron sputtering method;

[0064] Step 3, preparing a hole transport layer film on a conductive substrate

[0065] Nickel oxide hole transport layer thin film is plated on the conductive substrate by electron beam evaporation method, the thickness is 15nm;

[0066] Step 4, preparing a perovskite light-absorbing layer film on the hole transport layer film

[0067] The 1.4M perovskite precursor solution was composed of FAI, PbI 2 , MAB...

Embodiment 3

[0073] Step 1, flexible substrate pretreatment

[0074] Wash the cut 15*20cm flexible substrate in deionized water for 30 minutes, put it in a clean oven to dry, and obtain the cleaned flexible substrate, which is made of PI material;

[0075] Step 2, preparing a conductive film electrode layer on the cleaned flexible substrate

[0076] Metal gold was plated on the flexible substrate by electron beam evaporation with a thickness of 200nm, and the conductive metal oxide ITO was sputtered onto the metal layer with a power of 180W by magnetron sputtering;

[0077] Step 3, preparing a hole transport layer film on a conductive substrate

[0078] Nickel oxide hole transport layer thin film is plated on the conductive substrate by electron beam evaporation method, the thickness is 15nm;

[0079] Step 4, preparing a perovskite light-absorbing layer film on the hole transport layer film

[0080] The 1.4M perovskite precursor solution was composed of FAI, PbI 2 , MABr, PbBr 2 Prepa...

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Abstract

The invention discloses a trans-flexible perovskite solar cell and a preparation method thereof. The solar cell sequentially comprises a flexible substrate, a conductive thin film electrode layer, a hole transport layer, a perovskite light absorption layer, an electron transport layer and a back electrode from bottom to top, the flexible substrate is made of PI, and the thickness of the flexible substrate is smaller than 125 microns; and the substrate of the conductive film electrode layer is a laminated layer of metal or metal and oxide thereof. The preparation process is simple, the stability is good, a film can be formed at a low temperature without obvious hysteresis, and when the flexible perovskite solar cell with high flexibility, light weight, low cost and high efficiency is applied to the flexible perovskite solar cell, diversified products can be developed. By adjusting the structure of the trans-flexible perovskite solar cell, the stability of the solar cell can be improved, and the flexible perovskite solar cell has excellent photoelectric conversion efficiency. A road is opened up for the adoption of a large-scale and large-area process, and a new thought is provided for final commercialization of perovskite.

Description

technical field [0001] The invention belongs to the technical field of perovskite solar cells, and in particular relates to a trans-type flexible perovskite solar cell and a preparation method thereof. Background technique [0002] In the context of the continuous development of human society, the demand for energy is also increasing, but the reserves of traditional fossil energy on the earth are far from meeting the needs of human long-term development, and fossil energy will release a large amount of harmful pollutants during combustion. Gas causes environmental pollution and is not conducive to people's health. Human beings urgently need a new energy source that is efficient, clean and renewable. Among many new energy sources, solar energy has become a key research object due to its advantages of abundance, environmental protection, and inexhaustibility. [0003] The most representative application of solar energy is the solar cell, which is a device that uses the photov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/46H01L51/42H01L51/44H01L51/48
CPCH10K71/00H10K71/40H10K85/30H10K77/111H10K30/30H10K30/81H10K2102/00Y02E10/549
Inventor 刘生忠刘洁琼姜箫段连杰焦玉骁杜敏永曹越先王辉孙友名朱学杰王立坤杨少安
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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