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Fullerene derivative material, preparation method thereof and application of fullerene derivative material in perovskite solar cell

A technology of fullerene derivatives and solar cells, applied in the preparation of fullerenes, amino compounds, preparation of organic compounds, etc.

Pending Publication Date: 2022-04-29
HUANENG NEW ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, fullerene derivatives can usually be dissolved in aromatic solvents (toluene, chlorobenzene, xylene, dichlorobenzene, etc.) and processed into thin films. The defect of this processing method is that most of the aromatic solvents are strong carcinogens. Therefore, It is necessary to develop fullerene-based materials soluble in green solvents

Method used

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  • Fullerene derivative material, preparation method thereof and application of fullerene derivative material in perovskite solar cell
  • Fullerene derivative material, preparation method thereof and application of fullerene derivative material in perovskite solar cell
  • Fullerene derivative material, preparation method thereof and application of fullerene derivative material in perovskite solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Step 1) Synthesis of 5,6-bis(diethylamino)-2,3-dihydro-1H-inden-1-one :

[0052] Under the protection of inert gas and argon, 20mmol diethylamine, 12mmol 5,6-dibromo-1-indanone, and 12mmol tert-butyl sodium were added to 6ml DMF, and the reaction solution was heated to 120°C, and about 2mmol copper acetate was added and 2 mmol of the ligand compound—2-phenyl-2-(4-phenyl-1H-1,2,3-triazol-1-yl)ethanol, and then stirred for 4 hours. Afterwards, the mixture was rinsed with ethyl acetate, and the residue after removing the solvent by distillation under reduced pressure was purified by silica gel column chromatography, and the eluent was a mixture of petroleum ether and ethyl acetate (volume ratio: 6:4);

[0053]

[0054] Step 2) Synthesis of 5,6-bis(diethylamino)-1H-indene :

[0055] 1) 38mmol 5,6-bis(diethylamino)-2,3-dihydro-1H-inden-1-one, 16.4mmol neopentyl glycol, and 0.1g of p-toluenesulfonic acid were added to about 60ml of benzene; 2) the above mixture was h...

Embodiment 2

[0064] On the basis of Example 1, the diethylamine in step 1) is replaced with dioctylamine, and the ethyl iodide in step 4) is replaced with iodooctane, and the product structural formula obtained is as follows:

[0065]

Embodiment 3

[0067] On the basis of Example 1, C60 in step 3) is replaced by C70, and the product obtained is C 70 The indene addition monosubstituted product, the structural formula is as follows:

[0068]

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Abstract

The invention provides a fullerene derivative material, a preparation method thereof and application of the fullerene derivative material in a perovskite solar cell. The fullerene derivative material comprises an alkyl ammonium salt group, so that the fullerene derivative material has the dissolving capacity in alcohols or other green solvents, the purpose of green processing is achieved, and the fullerene derivative material is applied to a perovskite solar cell and serves as an electron transport layer to promote large-scale preparation of the perovskite solar cell. Compared with the traditional C60, C70, PC60BM and PC70BM, the indene derivative added fullerene has the advantage that the indene derivative added fullerene has higher light absorption capacity. When the fullerene derivative material is applied to an electron transport layer of a perovskite solar cell, the cell shows relatively high photo-generated current.

Description

technical field [0001] The invention belongs to the technical field of electron transport materials, and in particular relates to a fullerene derivative material, a preparation method thereof and an application in a perovskite solar cell. Background technique [0002] Since the first report of perovskite solar cells in 2009, the photoelectric conversion efficiency of the cells has increased rapidly from 3.8% to over 25%. Among many thin-film solar cells, solar cells based on organic-inorganic perovskite photoactive layers have become one of the most dynamic research hotspots in the international frontier research field due to their low cost, solution processability and excellent photoelectric conversion. [0003] For the preparation process of perovskite solar cells, in addition to the solution processability of the perovskite layer, other functional layers such as the carrier transport layer (hole and electron transport layer) and even the solution processability of transpa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C211/64C07C209/12C01B32/156H01L51/46H01L51/42H01L51/48
CPCC07C211/64C01B32/156C07C2603/97H10K71/12H10K85/215H10K30/10Y02E10/549
Inventor 张赟赵志国赵东明秦校军李新连夏渊李梦洁董超熊继光刘家梁
Owner HUANENG NEW ENERGY CO LTD
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