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Solar cell containing perovskite material and preparation method thereof

A technology of solar cells and perovskite materials, applied in the manufacture/processing of organic semiconductor devices, circuits, photovoltaic power generation, etc., can solve the problems of low manufacturing costs, achieve the effect of improving conversion rate and improving time stability

Inactive Publication Date: 2016-02-03
杨秋香
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The above-mentioned inventions gradually promote the industrialization of perovskite solar cells. However, the industrialization of perovskite depends on two conditions. One is low manufacturing cost, but its conversion efficiency is high, and its efficiency is still at present. Below 15%

Method used

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  • Solar cell containing perovskite material and preparation method thereof

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Embodiment 1

[0031] 1) Low-iron glass is used as the light-transmitting layer;

[0032] 2) Use ITO (IndiumTinOxides) conductive glass as the transparent electrode layer;

[0033] 3) Prepare a NiO2 layer on the surface of conductive glass by spraying thermal decomposition technology, with a thickness of 8nm;

[0034] 4) Prepare a mixed solution of nickel acetone caproate, lithium acetate, and magnesium acetate tetrahydrate at a molar ratio of 2:1:6, spin coat it on the transition layer, and dry it at 350°C to prepare an electron transport layer; thickness 15nm;

[0035] 5) Prepare light absorbing layer:

[0036] a. Prepare PbI2 solution, the concentration is 1.5Mol / L, and the solvent is dimethylformamide;

[0037] b. Prepare CH3NH3I solution: the concentration is 8.5 mg / mL, and the solvent is isopropanol;

[0038] In-situ synthesis of perovskite materials by solution method: first spin-coat PbI2 solution on the electron transport layer, after drying, soak in CH3NH3I solution to grow per...

Embodiment 2

[0047] 1) Low-iron glass is used as the light-transmitting layer;

[0048] 2) Aluminum zinc oxide AZO conductive glass is used as the transparent electrode layer;

[0049] 3) Prepare a NiO2 layer on the surface of conductive glass by spraying thermal decomposition technology. Thickness 50nm;

[0050] 4) According to the molar ratio of 1:1:3, a mixed solution of nickel acetone hexanoate, lithium acetate, and magnesium acetate tetrahydrate was prepared, spin-coated on the transition layer, and dried at 400°C to prepare the electron transport layer; thickness 60nm;

[0051] 5) Prepare light absorbing layer:

[0052] a. prepare PbI2 solution, concentration is 0.5Mol / L, and solvent is dimethylformamide;

[0053] b. Prepare CH3NH3I solution: the concentration is 10 mg / mL, and the solvent is isopropanol;

[0054] 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 g...

Embodiment 3

[0063] 1) Low-iron glass is used as the light-transmitting layer;

[0064] 2) Use fluorine tin oxide (FTO, fluorinated opedtinoxide) conductive glass as the transparent electrode layer;

[0065] 3) The NiO2 layer is made on the surface of conductive glass by spraying thermal decomposition technology. Thickness 6nm;

[0066] 4) According to the molar ratio of 1:1:10, a mixed solution of nickel acetone hexanoate, lithium acetate, and magnesium acetate tetrahydrate was prepared, spin-coated on the transition layer, and dried at 350°C to prepare the electron transport layer; thickness 98nm;

[0067] 5) Prepare light absorbing layer:

[0068] a. prepare PbI2 solution, concentration is 2.3Mol / L, and solvent is dimethylformamide;

[0069] b. Prepare CH3NH3I solution: the concentration is 7.5mg / mL, and the solvent is isopropanol;

[0070] In-situ synthesis of perovskite materials by solution method: first spin-coat PbI2 solution on the electron transport layer, after drying, soak...

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Abstract

The invention discloses a solar cell containing perovskite material and a preparation method thereof. The perovskite solar cell comprises a light transmission layer, a transparent electrode layer, a transition layer, an electron transport layer, a light absorption layer, an electron absorption layer, a hole transport layer, and a top electrode which are successively stacked. The transition layer is an oxide of nickel. The electron transport layer is a quaternary oxide. The light absorption layer is a material provided with perovskite structure. The electron absorption layer is formed by fullerene derivative. The hole transport layer is formed by a ternary oxide. The top electrode is formed by a material with good conductivity. The solar cell effectively utilizes the performance of the perovskite material, is increased in the photoelectric converting efficiency by over 20 percent, and is suitable for batch production.

Description

technical field [0001] The invention belongs to the field of perovskite solar cells, in particular to a solar cell containing perovskite materials and a preparation method thereof. Background technique [0002] Human beings use solar energy in many ways, such as using its thermal effect and light effect. A solar cell is a device that directly converts light energy into electrical energy through the photoelectric effect or photochemical effect, also known as a photovoltaic cell. Silicon solar cells, which are currently dominant in the commercial solar cell market, use crystalline silicon as the material for photoelectric conversion. Perovskite solar cells are currently a relatively new type of solar cells, mainly using perovskite structures similar to ABX (A=CHNH+, etc.; B=Pb2+, Sn2+, etc.; X=Cl-, Br-, I-, etc.) Photovoltaic materials for photoelectric conversion. In recent years, people have found that this type of battery has high photoelectric conversion efficiency and ...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K71/00H10K85/215H10K30/40H10K30/80H10K2102/00Y02E10/549Y02P70/50
Inventor 杨秋香
Owner 杨秋香
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