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Low-cost solar cell suitable for production

A solar cell, a low-cost technology, applied in circuits, photovoltaic power generation, electrical components, etc., to improve the ability to capture and absorb photons and improve the conversion rate

Inactive Publication Date: 2016-01-27
杨秋香
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report of perovskite solar cells with a conversion rate of more than 15% that can be mass-produced. Finding higher-efficiency solar cell structures is the goal of people's concerted efforts.

Method used

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  • Low-cost solar cell suitable for production

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 2) Prepare a mixed solution of nickel acetone caproate, lithium acetate, and magnesium acetate tetrahydrate at a molar ratio of 1:1:10, spin-coat it on the light-transmitting / transparent electrode layer, and dry it at 350°C to prepare the electron Transport layer; thickness 99nm;

[0029] 3) Prepare light absorbing layer:

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

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

[0032] In-situ synthesis of perovskite materials by solution method: first spin-coat PbI2 solution on the electron transport layer, put it into CH3NH3I solution after drying to soak and 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 laye...

Embodiment 2

[0042] 2) Prepare a mixed solution of nickel acetone caproate, lithium acetate, and magnesium acetate tetrahydrate at a molar ratio of 2:1:3, spin-coat it on the light-transmitting / transparent electrode layer, and dry it at 360°C to prepare an electronic Transport layer; thickness 85nm;

[0043] 3) Prepare light absorbing layer:

[0044] a. Prepare PbI2 solution, the concentration is 0.5Mol / L, and the solvent is dimethylformamide;

[0045] b. prepare CH3NH3I solution: concentration 10mg / mL, solvent is Virahol;

[0046]In-situ synthesis of perovskite materials by solution method: first spin-coat PbI2 solution on the electron transport layer, put it into CH3NH3I solution after drying to soak and grow perovskite materials, and obtain perovskite light-absorbing layer; thickness 490nm;

[0047] 4) Preparation of electron absorbing layer

[0048] The chlorobenzene solution of PC71BM was used to spin-coat the light-absorbing layer, and dried to obtain an electron-absorbing layer w...

Embodiment 3

[0056] 2) Prepare a mixed solution of nickel acetone caproate, lithium acetate, and magnesium acetate tetrahydrate at a molar ratio of 1:1:5, spin-coat it on the light-transmitting / transparent electrode layer, and dry it at 300°C to prepare the electron Transport layer; the thickness is controlled at 11nm;

[0057] 3) Prepare light absorbing layer:

[0058] a. Prepare PbI2 solution, the concentration is 2.3Mol / L, the solvent is dimethylformamide;

[0059] b. Prepare CH3NH3I solution: concentration 7.5mg / mL, solvent is isopropanol;

[0060] In-situ synthesis of perovskite materials by solution method: first spin-coat PbI2 solution on the electron transport layer, put it into CH3NH3I solution after drying to soak and grow perovskite materials, and obtain perovskite light-absorbing layer; thickness 430nm;

[0061] 4) Preparation of electron absorbing layer

[0062] The chlorobenzene solution of PCBM is used to spin-coat the light-absorbing layer, and dry to obtain an electro...

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Abstract

The invention discloses a low-cost solar cell suitable for production and a preparation method thereof. The perovskite solar cell comprises: a light-transmissive / transparent electrode layer, an electron transmission layer, a light absorption layer, an electron absorption layer, a hole transmission layer and a top electrode which are successively laminated, wherein, the electron transmission layer is made of quaternary oxides; the light absorption layer is made of material with a perovskite structure; the electron absorption layer is constituted of fullerene derivatives; the hole transmission layer is constituted of ternary oxides; the top electrode is constituted of materials with excellent conductivity. According to the solar cell, the performance of perovskite material is effectively utilized; the photoelectric conversion efficiency of the perovskite solar cells is increased to 16% and above; the solar cell is suitable for mass production.

Description

technical field [0001] The invention belongs to the field of perovskite solar cells, in particular to a low-cost solar cell suitable for production and a preparation method thereof. Background technique [0002] At present, since silicon solar cells, which dominate the commercial solar cell market, still cannot meet the low-cost requirements, people have been exploring new solar cells that meet the requirements of high efficiency and low cost. Since 2009, solar cells with organic metal halides with a perovskite crystal structure as the light-absorbing layer (perovskite solar cells) have achieved rapid development in recent years, and are expected to become high-efficiency, low-cost solar cells with market potential. Solar battery. ? [0003] Recently, perovskite solar cells have become a research hotspot. Chinese invention patent CN103915567A discloses a perovskite solar cell using an inorganic compound as a hole transport layer. It is characterized in that it includes a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K30/00H10K30/40H10K30/80H10K30/82Y02E10/549
Inventor 杨秋香
Owner 杨秋香
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