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Low cost perovskite solar cell being suitable for production

A solar cell and perovskite technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low conversion efficiency, insufficient conversion efficiency, and inability to mass-produce, and achieve the effect of improving the conversion rate

Inactive Publication Date: 2016-02-24
杨秋香
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its conversion efficiency is less than 14%
[0006] The above-mentioned inventions will gradually advance the industrialization of perovskite solar cells. However, mass production is not yet possible.
The main reason is that the conversion efficiency of the current perovskite battery is not high enough, generally below 15%.

Method used

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  • Low cost perovskite solar cell being suitable for production

Examples

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Comparison scheme
Effect test

Embodiment 1

[0027] 1) Use fluorine tin oxide (FTO, fluorinated opedtinoxide) conductive glass as the light-transmitting / transparent electrode layer;

[0028] 2) Prepare a chromium sulfide film on FTO by physical vapor deposition method, with a thickness of 15 nanometers;

[0029] 3) Prepare light absorbing layer:

[0030] a. prepare PbI2 solution, concentration is 3.0Mol / L, solvent is dimethylformamide;

[0031] b. Prepare CH3NH3I solution: the concentration is 5 mg / mL, and the solvent is isopropanol;

[0032] In-situ synthesis of perovskite materials by solution method: spin-coat PbI2 solution on the electron transport layer first, dry it and soak it in CH3NH3I solution to grow perovskite materials, and obtain perovskite light-absorbing layer; thickness 53nm;

[0033] 4) Preparation of electron absorbing layer

[0034] The chlorobenzene solution of PCBM is used to spin-coat on the light-absorbing layer, and dry to obtain an electron-absorbing layer with a thickness of 145nm;

[0035]...

Embodiment 2

[0041] 1) ITO (Indium Tin Oxides) conductive glass is used as the light-transmitting / transparent electrode layer;

[0042] 2) Manganese sulfide film was prepared on ITO by physical vapor deposition method, with a thickness of 10 nanometers;

[0043] 3) Prepare light absorbing layer:

[0044] a. prepare PbI2 solution, concentration is 2.3Mol / L, and solvent is dimethylformamide;

[0045] b. Prepare CH3NH3I solution: the concentration is 7.5mg / mL, and the solvent is isopropanol;

[0046] In-situ synthesis of perovskite materials by solution method: spin-coat PbI2 solution on the electron transport layer first, dry it and soak it in CH3NH3I solution to grow perovskite materials, and obtain perovskite light-absorbing layer; thickness 430nm;

[0047] 4) Preparation of electron absorbing layer

[0048] The chlorobenzene solution of PCBM is used to spin-coat the light-absorbing layer, and dry to obtain an electron-absorbing layer with a thickness of 83nm;

[0049] 5) Preparation o...

Embodiment 3

[0055] 1) ITO conductive glass is used as the light-transmitting / transparent electrode layer;

[0056] 2) Manganese sulfide film was prepared on ITO by thermal evaporation method, with a thickness of 38 nanometers;

[0057] 3) Prepare light absorbing layer:

[0058] a. Prepare PbI2 solution, the concentration is 1.5Mol / L, and the solvent is dimethylformamide;

[0059] b. Prepare CH3NH3I solution: the concentration is 8.5 mg / mL, and the solvent is isopropanol;

[0060] In-situ synthesis of perovskite materials by solution method: spin-coat PbI2 solution on the electron transport layer first, dry it and soak it in CH3NH3I solution to grow perovskite materials, and obtain perovskite light-absorbing layer; thickness 491nm;

[0061] a. Prepare PbI2 solution, the concentration is 1.5Mol / L, and the solvent is dimethylformamide;

[0062] b. Prepare CH3NH3I solution: the concentration is 8.5 mg / mL, and the solvent is isopropanol;

[0063] In-situ synthesis of perovskite materials b...

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Abstract

The invention discloses a low cost perovskite solar cell being suitable for production, and a preparation method thereof. The solar cell comprises a light transmission / transparent electrode layer, an electronic transmission layer, a light-absorption layer, an electronic absorbing layer, a cavity transmission layer and a top electrode, wherein the light transmission / transparent electrode layer, the electronic transmission layer, the light-absorption layer, the electronic absorbing layer, the cavity transmission layer and the top electrode are stacked successively; the light-absorption layer is provided with a material with a perovskite structure; the electronic absorbing layer is formed by fullerene derivatives; the cavity transmission layer is formed by ternary oxides; and the top electrode is formed by materials with good conductivity. The low cost perovskite solar cell effectively utilizes the performance of perovskite materials, and improves the photoelectric conversion efficiency of a perovskite solar cell by more than 17%, and is suitable for volume production.

Description

technical field [0001] The invention belongs to the field of perovskite solar cells, in particular to a low-cost perovskite solar cell suitable for production and a preparation method thereof. Background technique [0002] With the rapid development of the economy, human beings' demand for energy is increasing day by day, and the problems of energy and environment have become the focus of the world today. The political and economic relations of the world are closely related to these two issues. At present, sustainable and environment-friendly energy sources are attracting much attention, among which the photovoltaic industry is developing rapidly. However, the current photovoltaic industry is mainly based on crystalline silicon materials, which has the disadvantage of high cost. The photovoltaic industry in various countries mainly relies on government subsidies to promote it. If low-cost solar cells can be produced, it will greatly accelerate the development of the photov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K85/215H10K30/40H10K30/82H10K30/00Y02E10/549
Inventor 杨秋香
Owner 杨秋香
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