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Conjugated polymer electron donor material of polymer solar cell blended active layer and preparation method of conjugated polymer electron donor material

A conjugated polymer, solar cell technology, applied in the direction of electric solid device, semiconductor/solid state device manufacturing, circuit, etc., to achieve the effect of improving processability, good solubility and solution processability, easy modification and solubilization

Inactive Publication Date: 2016-08-17
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of narrow bandgap D-A type polymer based on N-fused ring-imine-9H-fluorene electron donor, so far, there are no relevant literatures and patents at home and abroad to report its synthesis method and its application in solar cell polymer donors. Applications of materials

Method used

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  • Conjugated polymer electron donor material of polymer solar cell blended active layer and preparation method of conjugated polymer electron donor material
  • Conjugated polymer electron donor material of polymer solar cell blended active layer and preparation method of conjugated polymer electron donor material
  • Conjugated polymer electron donor material of polymer solar cell blended active layer and preparation method of conjugated polymer electron donor material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) 2,7-dibromo-fluoren-9-one

[0036]

[0037] The raw material fluorenone (2.5g, 14mmol) was added to 50mL of deionized water, and the aqueous solution was heated to 80°C and stirred for 1 hour, and bromine (4.4g, 27.8mmol) was slowly added dropwise. The molar ratio of fluorenone to bromine was 1:2. Then be warming up to 85 DEG C and react for 6 hours; stop the reaction, wait for the solution to cool to room temperature, pour the reaction mixture into deionized water, add aqueous sodium hydroxide solution (10%, wt%), filter the yellow precipitate generated, and simultaneously use a large amount of Washed with deionized water and dried in vacuo to obtain a yellow solid product with a yield of 90%.

[0038] (2) 2,7-dibromo-N-(4-fluoro)phenyl-imine-9H-fluorene

[0039]

[0040] Dissolve 4-fluoroaniline (1.0g, 9.3mmol) and triethylamine (3.6g, 36mmol) in 65mL of anhydrous tetrahydrofuran, lower the temperature to -15°C under the protection of argon and stir for 30 ...

Embodiment 2

[0049] (1) 2,7-dibromo-fluoren-9-one

[0050]

[0051] The raw material fluorenone (2.5g, 14mmol) was added to 50mL of deionized water, and the aqueous solution was heated to 80°C and stirred for 1 hour, and bromine (6.6g, 42mmol) was slowly added dropwise. The molar ratio of fluorenone to bromine was 1:3, and then The temperature was raised to 90° C. for 10 hours; the reaction was stopped, and the solution was cooled to room temperature, the reaction mixture was poured into deionized water, an aqueous sodium hydroxide solution (10%, wt%) was added, and the resulting yellow precipitate was filtered, while a large amount of Washing with deionized water and vacuum drying gave a yellow solid product with a yield of 91%.

[0052] (2) 2,7-dibromo-N-(4-methyl)phenyl-imine-9H-fluorene

[0053]

[0054] Dissolve 4-methyl-aniline (1.1g, 10mmol) and triethylamine (4.5g, 44mmol) in 65mL of anhydrous tetrahydrofuran, lower the temperature to -25°C and stir for 30 minutes under the ...

Embodiment 3

[0063] (1) 2,7-dibromo-fluoren-9-one

[0064]

[0065] The raw material fluorenone (2.5g, 14mmol) was added to 50mL of deionized water, the aqueous solution was heated to 80°C and stirred for 1 hour, and bromine (11g, 69mmol) was slowly added dropwise, the molar ratio of fluorenone to bromine was 1:5, and then the temperature was raised Reaction at 95° C. for 12 hours; stop the reaction, wait for the solution to cool to room temperature, pour the reaction mixture into deionized water, add aqueous sodium hydroxide solution (10%, wt%), filter the yellow precipitate generated, and simultaneously use a large amount of deionized Washed with deionized water and dried under vacuum to obtain a yellow solid product with a yield of 89%.

[0066] (2) 2,7-dibromo-N-naphthyl-imine-9H-fluorene

[0067]

[0068] 2-Naphthylamine (1.6g, 11mmol) and triethylamine (5.4g, 53mmol) were dissolved in 65mL of anhydrous tetrahydrofuran, under the protection of argon, the temperature was lowered...

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Abstract

The invention relates to a conjugated polymer electron donor material of a polymer solar cell blended active layer and a preparation method of the conjugated polymer electron donor material. The structure general formula of the polymer of the material is shown in the description, wherein in the formula, R1 is C2H5-C12H25 alkyl, R2 is OC2H5-OC18H37 alkoxy, Ar is provided with an electrondrawing group and an electron-donating group, and n is an integer from 3 to 100. According to the method, synthesis is easy, and raw materials are low in price. The obtained polymer has good heat stability (the decomposition temperature reaches 350 DEG C) and very good solubility and hypocrystalline film-forming performance; the absorption range (300-1,000 micons) of the material to sunshine is enlarged by low optical band gaps (1.65 eV); the rigid conjugated structure of the material is beneficial to enhancing intramolecular charge transfer strength and the polymer solid phase intermolecular pi-pi accumulation effect, and the polymer solar cell blended active electron donor material has potential.

Description

technical field [0001] The invention relates to a conjugated polymer electron donor material used in the blended active layer of a polymer solar cell, in particular to a conjugated polymer electron donor material based on N-fused ring-imine-9H-fluorene and thiadiazolo Conjugated polymer electron donor material of quinoxaline and its preparation method. Background technique [0002] With the shortage of fossil energy and global environmental pollution, countries all over the world are devoting themselves to the development of clean and renewable energy. Solar energy, which accounts for more than 99% of the total energy of the earth, is inexhaustible, inexhaustible, and non-polluting. Because of this, solar cells that use the photovoltaic effect to convert solar energy into electrical energy have become a research hotspot in academia and industry. The focus of research and development in the world. Nowadays, solar cells can be mainly divided into inorganic and organic polyme...

Claims

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Application Information

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IPC IPC(8): C08G61/12H01L51/42H01L51/46
CPCC08G61/122C08G2261/3142C08G2261/3223C08G2261/3241C08G2261/124C08G2261/149C08G2261/148C08G2261/18C08G2261/91C08G2261/3246C08G2261/411H10K85/151H10K85/113H10K30/00Y02E10/549
Inventor 海杰峰李玲
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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