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Preparation method and application technology field of polymer donor material containing multi-element aromatic ring thiophenedione

A thiophenedione and polymer technology, applied in the field of solar cells, can solve problems such as energy depletion and environmental pollution, and achieve the effect of high photoelectric conversion efficiency

Active Publication Date: 2022-02-25
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, our main way of obtaining energy is still fossil energy, but this type of energy is becoming increasingly exhausted and has caused obvious environmental pollution

Method used

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  • Preparation method and application technology field of polymer donor material containing multi-element aromatic ring thiophenedione
  • Preparation method and application technology field of polymer donor material containing multi-element aromatic ring thiophenedione
  • Preparation method and application technology field of polymer donor material containing multi-element aromatic ring thiophenedione

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Experimental program
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Effect test

preparation example Construction

[0034] The preparation method of the polymer provided by the present invention, polymerizes into formula (I) by monomer formula (II), formula (III),

[0035]

[0036] Wherein W is selected from I, Br or Cl, and V is selected from boronic acid groups, borate ester groups, zinc halide groups or trialkyltin groups;

[0037] The boronic acid group is selected from including but not limited to: 1,3,2-dioxaborolan-2-yl, 4,4,5,5-tetramethyl-1,2,3-dioxane Pentaboran-2-yl or 5,5-dimethyl-1,3,2-dioxaborolan-2-yl;

[0038] The magnesium halide group is selected from including but not limited to: magnesium chloride, magnesium bromide or magnesium iodide; the zinc halide group is preferably: zinc chloride or zinc bromide;

[0039] The trialkyltin group is selected from including but not limited to: trimethyltin, triethyltin or tributyltin.

[0040] If the polycondensation reaction is carried out between a dimagnesium haloarene compound and an arene dihalide, the polymerization is a ty...

Embodiment 1

[0051] Embodiment 1: the synthesis of intermediate 2

[0052]

[0053] At 0°C, potassium tert-butoxide (2.7g, 24.1mmol, 4eq) was added to tetrahydrofuran of fluorene (1.0 g, 6.0mmol) and bromo-n-octane (3.5g, 18.1mmol, 3eq) in several portions. (15mL) solution; after adding, stir at room temperature for 1 hour; add 20mL of water to quench, extract the organic phase with dichloromethane, wash with water to remove impurities, filter and concentrate the organic phase after drying with anhydrous sodium sulfate; petroleum ether As an eluent, the crude product was eluted through a silica gel column to obtain a colorless liquid, i.e. Intermediate 2; 2.0 g of Intermediate 2 was obtained, with a yield of 85%; 1 H NMR analysis was consistent with literature.

Embodiment 2

[0054] Embodiment 2: the synthesis of intermediate 3

[0055]

[0056] At 0°C, aluminum trichloride (1.5g, 11.3mmol, 4.4eq) was added several times to the mixture of intermediate 2 (1.0g, 2.6mmol) and compound C1 (0.94g, 2.6mmol, 1eq). Chloromethane (20 mL) solution; after adding, stir at room temperature for 3 hours; add 20 mL of ice water to quench, extract the organic phase with dichloromethane, wash to remove impurities, and dry the organic phase with anhydrous sodium sulfate, filter and Concentration; petroleum ether and dichloromethane were used as eluents, and the crude product was eluted through a silica gel column to obtain a light yellow liquid, namely intermediate 3; 0.5 g of intermediate 2 was obtained, and the yield was 28%;

[0057] The structural confirmation data is as follows: 1 H NMR (400MHz, CDCl 3 )δ8.59(s,1H),8.29(s,1H),7.90-7.88(d,1H),7.44–7.40(m,3H),2.14–1.96(m,4H), 1.25–0.96(m, 12H), 0.81–0.78(t,6H).

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Abstract

The invention provides a preparation method and application of a polymer donor material containing multi-element aromatic ring thiophenedione. The polymer provided by the invention is a polymer with a structure shown as a formula (I). Experiments show that the polymer provided by the invention can obtain photoelectric conversion efficiency as high as 15.04% as an active layer component of a photoelectric conversion device.

Description

technical field [0001] The present invention relates to the field of solar cells, in particular to a polymer based on a multi-aryl ring thiophenedione and its preparation method and application. Background technique [0002] Energy is the material basis and guarantee for the development of human society. With the rapid development of science and technology, human demand for energy is increasing year by year. At present, our main way of obtaining energy is still fossil energy, but this type of energy is becoming increasingly exhausted and has caused obvious environmental pollution. As an inexhaustible and inexhaustible clean energy source, solar energy has attracted extensive attention from scientists, factories and enterprises in various countries. [0003] Scientists have prepared various solar cells based on the photovoltaic effect. Among them, organic solar cells (OPV) have outstanding advantages such as light weight, low cost, and flexible large-area devices. Through...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12H01L51/42H01L51/46
CPCC08G61/126C08G2261/124C08G2261/145C08G2261/18C08G2261/3243C08G2261/3223C08G2261/414C08G2261/91H10K85/151H10K30/00Y02E10/549
Inventor 孙艳明叶灵龙
Owner BEIHANG UNIV
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