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A kind of preparation method of press-fit perovskite solar cell

A solar cell and perovskite technology, which is applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problems of reducing battery performance and the influence of perovskite layers, and achieves a wide range of applications

Active Publication Date: 2020-07-21
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

However, in the traditional method of preparing perovskite solar cells, when vacuum physical methods are used to prepare thin films, regardless of the formal n-i-p structure or trans p-i-n structure, the particle impact and heating process during the preparation of other functional layers will inevitably cause damage to the perovskite layer. impact, thereby reducing battery performance
In addition, similar problems exist in the process of preparing perovskite solar cells by the solution method, and the solvent atmosphere and heating of other functional layers can also negatively affect the perovskite layer.

Method used

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  • A kind of preparation method of press-fit perovskite solar cell
  • A kind of preparation method of press-fit perovskite solar cell
  • A kind of preparation method of press-fit perovskite solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Preparation of half-cell A

[0021] The indium tin oxide (ITO) conductive layer was prepared by magnetron sputtering on a transparent polyimide substrate of 100×100 mm, and the vacuum degree of the chamber body was 1.5×10 by using the DC sputtering method. -7 Torr, the target is an In:Sn (93:7) alloy target with a purity of 99.99%, the ratio of argon-oxygen gas mixture during sputtering is 1:1, and the vacuum degree is 3×10 -3 Torr, the sputtering power is 120W, the thickness of the prepared ITO film is 80nm, the ITO film is annealed in air, the annealing temperature is 150°C, and the time is 30min; the titanium oxide electron transport layer is prepared on the surface of ITO by magnetron sputtering , the vacuum degree of the chamber body is 1.5×10 -7 Torr, the target material is a Ti target with a purity of 99.995%, the ratio of argon-oxygen gas mixture is 20:3, and the pressure during sputtering is 7.5×10 -3 Torr, the sputtering power is 200W, the thickness of t...

Embodiment 2

[0026] According to the preparation method described in Example 1, before lamination, heat the two half-cells at 100°C for 75 minutes under a nitrogen atmosphere to make the precursor generate perovskite. After cooling to room temperature, place the half-cells opposite to each other Directions are pressed together, and the whole device is heated at 100°C for 75 minutes to obtain a complete press-fit flexible perovskite solar cell.

Embodiment 3

[0028] According to the preparation method described in Example 1, before lamination, the two half-cells were heated at 100°C for 75 minutes under a nitrogen atmosphere, and after cooling to room temperature, the half-cells were placed in a trace amount of methylamine vapor for 1 second to activate the perovskite layer. Afterwards, the perovskite layers are quickly pressed together in the opposite direction, and the entire device is heated at 100°C for 75 minutes to obtain a complete press-fit flexible perovskite solar cell.

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Abstract

The invention provides a method for preparing a press-fit perovskite solar cell. The first half-cell is composed of a substrate, a conductive layer, an electron transport layer and a perovskite precursor layer, and the second half-cell is composed of a substrate, a conductive layer, hole transport layer and perovskite precursor layer. The two half-cells are heat-pressed by physical or chemical methods to form a press-bonded perovskite solar cell. The advantage of the press-fit perovskite solar cell of the present invention is that all conductive layers and charge (including electrons and holes) transport layers can be pre-prepared before the perovskite layer is prepared, which not only eliminates the preparation of the conductive layer and charge transport layer in the traditional preparation method The negative impact of the process on the perovskite layer also ensures the good photoelectric performance of the conductive layer and the charge transport layer, which is conducive to the flexible design of the preparation method and material structure of the conductive layer and the charge transport layer, and achieves the purpose of preparing efficient and stable perovskite solar cells. .

Description

technical field [0001] The invention relates to a method for preparing a solar cell, in particular to a method for preparing a novel press-fit perovskite solar cell. Background technique [0002] At present, 80-85% of human energy supply comes from traditional fossil fuels, but the reserves of fossil fuels are limited, and the use of them has caused serious environmental pollution and threatened human health. Renewable energy has become the main development direction of energy due to its advantages of sustainability, cleanliness, and environmental protection. As a new type of renewable energy, solar energy has the advantages of large reserves and wide distribution, and is considered to be one of the most important new energy sources in the 21st century. A solar cell is a semiconductor optoelectronic device that directly converts solar energy into electrical energy, and has important research value in the field of energy conversion. [0003] Perovskite solar cells thus have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/48H01L51/42
CPCY02E10/549
Inventor 刘生忠王开王辉杜敏永张豆豆
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI