A preparation method of cross-linked fullerene heterojunction perovskite solar cell

A solar cell, perovskite type technology, applied in the field of solar cells, can solve the problems of restricting the energy conversion efficiency of cell devices, etc., and achieve the effects of improving the low coverage rate, increasing the coverage rate, and increasing the optional space

Active Publication Date: 2017-12-26
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Technical problem to be solved: Aiming at the shortcomings of the existing planar heterojunction perovskite solar energy that limit the transmission of photocurrent and restrict the energy conversion efficiency of battery devices, the present invention provides a cross-linked fullerene heterojunction calcium Preparation method of titanium ore type solar cell

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  • A preparation method of cross-linked fullerene heterojunction perovskite solar cell

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Embodiment 1

[0025] A method for preparing a cross-linked fullerene heterojunction perovskite solar cell, the preparation steps of the preparation method are as follows:

[0026] (1) Dissolve 256mg of methylammonium iodide, 149mg of lead chloride, and 6mg of [6,6]-phenyl-C61-butyricstyryl dendron ester in dimethylformamide, stir for 5 hours, and prepare 30wt% Perovskite DMF solution;

[0027] (2) Spin-coat the PEDOT:PSS solution on the ITO glass substrate at a speed of 4500rpm for 40s, and then anneal in air at 100°C for 20min to form a cured anode modification layer with a thickness of 45nm;

[0028] (3) Spin-coat the perovskite dimethylformamide solution obtained in (1) on the anode modification layer obtained in (2) at a rotation speed of 4000rpm for 40s, and then anneal at 100°C to obtain a uniform A cured bulk heterojunction photosensitive layer with a thickness of 250nm;

[0029] (4) Spin-coat [6,6]-phenyl-C61-butyric acid methyl ester on the bulk heterojunction photosensitive laye...

Embodiment 2

[0032] A method for preparing a cross-linked fullerene heterojunction perovskite solar cell, the preparation steps of the preparation method are as follows:

[0033] (1) Dissolve 256mg of methylammonium iodide, 149mg of lead chloride, and 6mg of [6,6]-phenyl-C61-butyricstyryl dendron ester in dimethylformamide, stir for 5 hours, and prepare 30wt% Perovskite DMF solution;

[0034] (2) Spin-coat the PEDOT:PSS solution on the ITO flexible substrate at a rotation speed of 4500rpm for 40s, and then anneal in air at 100°C for 20min to form a cured anode modification layer with a thickness of 45nm;

[0035] (3) Spin-coat the perovskite dimethylformamide solution obtained in (1) on the anode modification layer obtained in (2) at a rotation speed of 4000rpm for 40s, and then anneal at 100°C to obtain a uniform A cured bulk heterojunction photosensitive layer with a thickness of 250nm;

[0036] (4) Spin-coat [6,6]-phenyl-C61-butyric acid methyl ester on the bulk heterojunction photose...

Embodiment 3

[0039] A method for preparing a cross-linked fullerene heterojunction perovskite solar cell, the preparation steps of the preparation method are as follows:

[0040] (1) Dissolve 256mg of methylammonium iodide, 149mg of lead chloride, and 1mg of [6,6]-phenyl-C61-butyricstyryl dendron ester in dimethylformamide, stir for 2 hours, and prepare 30wt% Perovskite DMF solution;

[0041] (2) Spin-coat the PEDOT:PSS solution on the ITO glass substrate at a speed of 4500rpm for 40s, and then anneal in air at 95°C for 40min to form a cured anode modification layer with a thickness of 45nm;

[0042] (3) Spin-coat the perovskite dimethylformamide solution obtained in (1) on the anode modification layer obtained in (2) at a rotation speed of 4000rpm for 40s, and then anneal at 100°C to obtain a uniform A cured bulk heterojunction photosensitive layer with a thickness of 250nm;

[0043] (4) Spin-coat [6,6]-phenyl-C61-butyric acid methyl ester on the bulk heterojunction photosensitive layer...

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Abstract

The invention provides a method for preparing a cross-linked fullerene heterojunction perovskite solar cell, the preparation steps are as follows: methyl ammonium iodide, lead chloride, [6,6]-phenyl-C61- butyric styryl dendron ester was dissolved in dimethylformamide to make a 30wt% perovskite dimethylformamide solution; the PEDOT:PSS solution was processed on the substrate to form a cured anode modification layer; the perovskite Dimethylformamide solution is processed on the anode modification layer to obtain a uniformly cured bulk heterojunction photosensitive layer; [6,6]-phenyl-C61-butyric acid methyl ester is processed onto the bulk heterojunction photosensitive layer, A uniform electron transport layer is obtained; a cathode electrode is processed on the electron transport layer to obtain a cross-linked fullerene heterojunction perovskite solar cell. The perovskite type solar cell obtained by the invention has high energy conversion efficiency and good photovoltaic characteristics.

Description

technical field [0001] The invention belongs to the field of solar cells, and in particular relates to a method for preparing a cross-linked fullerene heterojunction perovskite solar cell. Background technique [0002] Bulk heterojunction solar cells are favored by many researchers for their high-efficiency electron-hole transport properties. This bulk heterojunction device structure is widely used in organic solar cells and fuel-sensitized cells. However, in perovskite solar cells The planar heterojunction device structure is usually used in the battery, which limits the photocurrent transmission of the battery device to a certain extent, and restricts the further improvement of the energy conversion efficiency of the battery device. [0003] In addition, the short carrier migration length restricts the improvement of the efficiency of planar heterojunction perovskite solar cells to a certain extent, and the current short-circuit current density is usually 18-20mA / cm 2 Man...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/48H01L51/42H01L51/46
CPCH10K85/00H10K30/00H10K30/30Y02E10/549
Inventor 廖良生王照奎李萌
Owner SUZHOU UNIV
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