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Perovskite solar cell and manufacturing method thereof

A technology of solar cells and manufacturing methods, applied in the field of solar cells, can solve problems such as unfavorable commercialization and large-scale application of solution preparation, difficulties, etc., and achieve the goals of solving inconvenience and uncertainty, improving quality, improving stability and efficiency Effect

Pending Publication Date: 2022-07-29
QINGHAI HUANGHE HYDROPOWER DEV +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, at present, 2D / 3D perovskite heterojunction films are mainly formed by the solution method, which is obtained by adding organic cations to the 3D perovskite precursor solution or surface treatment of the 3D perovskite film. Therefore, in the preparation It is inevitable to add solvents in the process, which leads to the following problems: On the one hand, many factors should be considered in the process of preparing solvents, such as solvent selection, solubility, erosion of perovskite and transport layer, etc. Difficulty and uncertainty; on the other hand, solution preparation is not conducive to commercialization and large-scale application

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  • Perovskite solar cell and manufacturing method thereof
  • Perovskite solar cell and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The fabrication method of the perovskite solar cell according to Embodiment 1 of the present invention includes:

[0064] Step 1, forming a cathode on the glass substrate, which specifically includes:

[0065] The first step is to uniformly coat a transparent conductive oxide material (ITO) on the first surface of the glass substrate to form a cathode;

[0066] The second step is to pretreat the glass substrate, specifically, first, use an aqueous solution consisting of deionized water and a small amount of alkaline cleaning solution (Decon-90) to preprocess the glass on which the cathode has been formed The substrate was ultrasonically cleaned for 15min; then, an aqueous solution composed of deionized water and acetone, an aqueous solution composed of deionized water and alcohol, and deionized water were used to ultrasonically clean the glass substrate for 15min each, and then use nitrogen after cleaning. Gun dry; finally, the glass substrate is subjected to ultraviol...

Embodiment 2

[0093] The fabrication method of the perovskite solar cell according to Embodiment 2 of the present invention includes:

[0094] Step 1, forming a cathode on the glass substrate, which specifically includes:

[0095] The first step is to uniformly coat a transparent conductive oxide material (ITO) on the first surface of the glass substrate to form a cathode;

[0096] The second step is to pretreat the glass substrate, specifically, first, use an aqueous solution consisting of deionized water and a small amount of alkaline cleaning solution (Decon-90) to preprocess the glass on which the cathode has been formed The substrate was ultrasonically cleaned for 15min; then, an aqueous solution composed of deionized water and acetone, an aqueous solution composed of deionized water and alcohol, and deionized water were used to ultrasonically clean the glass substrate for 15min each, and then use nitrogen after cleaning. Gun dry; finally, the glass substrate is subjected to ultraviol...

Embodiment 3

[0123] The manufacturing method of the perovskite solar cell according to Embodiment 3 of the present invention includes:

[0124] Step 1, forming a cathode on the glass substrate, which specifically includes:

[0125] The first step is to uniformly coat a transparent conductive oxide material (ITO) on the first surface of the glass substrate to form a cathode;

[0126] The second step is to pretreat the glass substrate, specifically, first, use an aqueous solution consisting of deionized water and a small amount of alkaline cleaning solution (Decon-90) to preprocess the glass on which the cathode has been formed The substrate was ultrasonically cleaned for 15min; then, an aqueous solution composed of deionized water and acetone, an aqueous solution composed of deionized water and alcohol, and deionized water were used to ultrasonically clean the glass substrate for 15min each, and then use nitrogen after cleaning. Gun dry; finally, the glass substrate is subjected to ultravi...

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Abstract

The invention provides a perovskite solar cell and a manufacturing method thereof. The manufacturing method comprises the following steps: forming a cathode on a transparent substrate; forming an electron transport layer on the cathode; forming a three-dimensional perovskite light absorption layer on the electron transport layer; forming a two-dimensional perovskite light absorption layer on the three-dimensional perovskite light absorption layer by using a vacuum coating method; wherein the material of the two-dimensional perovskite light absorption layer is (COOH (CH2) 3NH3) 2PbI4 or (COOH (CH2) 7NH3) 2PbI4; forming a hole transport layer on the two-dimensional perovskite light absorption layer; and forming an anode on the hole transport layer to obtain the perovskite solar cell. According to the manufacturing method provided by the invention, a two-dimensional / three-dimensional perovskite heterostructure is constructed by adopting a vacuum evaporation method instead of a solution method, so that inconvenience and uncertainty caused by adding a solvent are avoided, the quality, the photoelectric property, the stability and the interface characteristic of the three-dimensional perovskite thin film are improved, and the performance of the three-dimensional perovskite thin film is improved. And the stability and the efficiency of the perovskite solar cell can be improved.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a perovskite solar cell and a manufacturing method thereof. Background technique [0002] With the continuous development of human society, the demand for energy is increasing rapidly, and the main traditional energy sources that support modern society, such as coal, oil, natural gas, etc., have been increasingly exhausted. Therefore, through the research and development of renewable energy to reduce or replace part of the traditional energy use, has become a global hot topic. Among them, solar energy, as a renewable clean energy, has the characteristics of cheap, non-polluting, widely used, inexhaustible and inexhaustible, and has become the focus of energy development since the 21st century. Converting light energy into electrical energy by using the photovoltaic effect of semiconductor materials is the most widely used form of solar energy in the energy field,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48H01L51/46H01L51/42
CPCH10K71/12H10K71/164H10K85/30H10K30/20
Inventor 董鹏郭永刚宋志成倪玉凤刘大伟张敏陈丹朱卫东张春福
Owner QINGHAI HUANGHE HYDROPOWER DEV