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A kind of acceptor material of organic solar cell and preparation method thereof

A technology for solar cells and acceptor materials, applied in the field of isoindigo derivative organic solar cell acceptor materials and their preparation, can solve the problems of long energy repayment time, complicated preparation procedures, easy to produce pollution, etc. Capability, high carrier mobility, solubility improvement effect

Active Publication Date: 2019-12-17
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, traditional silicon-based solar cells are expensive, have long energy repayment time, complex preparation procedures, and are prone to pollution during the production process.

Method used

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  • A kind of acceptor material of organic solar cell and preparation method thereof
  • A kind of acceptor material of organic solar cell and preparation method thereof
  • A kind of acceptor material of organic solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add 6-bromooxindole (compound 1, 500 mg, 2.36 mmol), 6-bromoisatin (compound 2, 533 mg, 2.36 mmol) and AcOH (15 mL) into a 50 ml one-necked flask, and add concentrated HCl to the suspension solution (0.1ml), heated to 100°C and refluxed for 24 hours. After the mixture was cooled, it was filtered, and the solid matter was washed with water, EtOH and AcOEt respectively, followed by vacuum drying to obtain 951 mg of brown 6,6-dibromoisoindole (Compound 3), with a yield of 95%. The reaction process is as follows:

[0034]

[0035] Under the protective atmosphere of inert gas in a vacuum environment, add 6,6-dibromoisoindole (compound 3, 1.0g, 2.93mmol), freshly dried potassium carbonate (2.43g, 17.59mmol) and anhydrous DMF into a 100ml three-necked flask (20 mL), followed by the addition of 1-bromo-2-ethylhexane (1.70 g, 8.79 mmol) to the resulting suspension. The mixture was heated to 100 °C and stirred for 15 hours, then poured into water (500 mL), and the organic ph...

Embodiment 2

[0054] The synthesis process of compound 3 was as described above.

[0055] Under the protective atmosphere of inert gas in a vacuum environment, add 6,6-dibromoisoindole (compound 3, 1.0g, 2.38mmol), freshly dried potassium carbonate (2.43g, 17.59mmol) and anhydrous DMF to a 100ml three-necked flask (25 mL), then 1-bromo-n-hexyl (compound 4, 0.98 g, 5.95 mmol) was added to the resulting suspension. The mixture was heated to 100 °C and stirred for 15 hours, then poured into water (500 mL), and the organic phase was washed with CH 2 Cl 2 Extracted, washed with brine, washed with MgSO 4 After drying and removal of the solvent under reduced pressure, the dark red solid was purified by silica chromatography with (CH 2 Cl 2 : hexane=2:3, volume ratio) to obtain 1.26 g of brown solid (compound 5.1) with a yield of 90.7%. The reaction process is as follows:

[0056]

[0057] Add toluene (47mL), triphenylphosphine palladium (Pd(PPh 3 ) 4 ) (0.26g, 13.2mmol) and compound 5.1...

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Abstract

The invention provides an isoindigo derivative organic solar cell acceptor material and a preparation method thereof. The compound has good thermal stability, high carrier mobility, and high molar extinction coefficient. Organic solar cell devices have excellent photoelectric conversion efficiency and high fill factor. The structure of the isoindigo derivative is as follows: wherein, AK is selected from one of saturated alkyl chains, ether chains or siloxane chains with 1-20 carbon atoms, and X represents H or CF 3 .

Description

technical field [0001] The invention relates to the technical field of organic optoelectronic materials, in particular to an isoindigo derivative organic solar cell acceptor material and a preparation method thereof. Background technique [0002] With the gradual depletion of petroleum and other energy sources, the development and application of renewable energy such as solar energy has gradually become the focus of social attention. The main way to utilize solar energy is to develop solar cells. However, traditional silicon-based solar cells are expensive, have a long energy repayment time, complex preparation procedures, and are prone to pollution during the production process. In comparison, organic solar cells and perovskite solar cells have the incomparable advantages of silicon-based solar cells, such as light weight, low price, easy processing, and large-area devices, and are increasingly valued by relevant researchers. [0003] Isoindigo compounds have great potenti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D409/14H01L51/46
CPCC07D409/14H10K85/624H10K85/655H10K85/6572Y02E10/549
Inventor 刘治田张晓璐高翔方成曾娣张拨张旗
Owner WUHAN INSTITUTE OF TECHNOLOGY
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