Fluorine-containing two-dimensional conjugate benzo-difuran and pyrazine copolymer photovoltaic material, and preparation method and application thereof

A benzodifuran, two-dimensional conjugation technology, used in photovoltaic power generation, semiconductor/solid-state device manufacturing, electrical components, etc., can solve the problems of limiting the application of such substances, insufficient photoelectric conversion efficiency, etc., and achieve good photoelectric conversion efficiency. , Good photoelectric conversion characteristics, the effect of wide absorption spectrum

Inactive Publication Date: 2019-10-25
HUNAN UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

; The photoelectric conversion efficiency of this compound is not high enough, which limits the application of such substances

Method used

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  • Fluorine-containing two-dimensional conjugate benzo-difuran and pyrazine copolymer photovoltaic material, and preparation method and application thereof
  • Fluorine-containing two-dimensional conjugate benzo-difuran and pyrazine copolymer photovoltaic material, and preparation method and application thereof
  • Fluorine-containing two-dimensional conjugate benzo-difuran and pyrazine copolymer photovoltaic material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] 4,8-bis(3-isooctyloxy-2-fluorophenyl)-benzo(1,2-b; 4,5-b′)-difuran-2,5-dioctyloxy- Preparation of 3,6-bis(furan-2-methylene)pyrazine (P1)

[0054] Specific steps are as follows:

[0055] ①Synthesis of Compound 1

[0056] 1,4-Diacetylpiperazine-2,5-dione (1.19g, 6mmol) and 5-bromo-2 furfural (2.63g, 15mmol) were placed in a 50ml single-necked round bottom flask, and then 28ml DMF, under the protection of nitrogen, heat and stir, raise the temperature to 120°C, add 3.32ml of triethylamine through a syringe, after the completion, the reaction system turns from colorless to red immediately, continue to react for 12 hours, after the completion of the reaction, cool to room temperature, produce The yellow precipitate was collected by filtration, washed with acetone, and the product was collected to obtain the target product (2.16 g, yield: 84%), which was directly carried out to the next reaction without further purification.

[0057] The nuclear magnetic resonance spectru...

Embodiment 2

[0072] 4,8-bis(3-isooctyloxy-2-fluorophenyl)-benzo(1,2-b; 4,5-b′)-difuran-2,5-dioctyloxy-3 , Preparation of 6-bis(furan-2-methylene)piperazine (P2)

[0073] The synthetic method of compound 2 is the same as the synthetic method of compound 2 in embodiment 1, and brominated alkane adopts brominated n-octane, and concrete steps are as follows:

[0074] ①Synthesis of Compound 1

[0075] 1,4-Diacetylpiperazine-2,5-dione (1.19g, 6mmol) and 5-bromo-2 furfural (2.63g, 15mmol) were placed in a 50ml single-necked round bottom flask, and then 28ml DMF, under the protection of nitrogen, heat and stir, raise the temperature to 120°C, add 3.32ml of triethylamine through a syringe, after the completion, the reaction system turns from colorless to red immediately, continue to react for 12 hours, after the completion of the reaction, cool to room temperature, produce The yellow precipitate was collected by filtration, washed with acetone, and the product was collected to obtain the target p...

Embodiment 3

[0091] 4,8-bis(3-isooctyloxy-2-fluorophenyl)-benzo(1,2-b; 4,5-b′)-difuran-2,5-bis(2-octyl) Preparation of dodecyloxy)-3,6-bis(furan-2-methylene)piperazine (P3)

[0092] The synthetic method of compound 2 is the same as the synthetic method of compound 2 in embodiment 1, and brominated alkane adopts brominated 2-octyl-dodecane, and concrete steps are as follows:

[0093] ①Synthesis of Compound 1

[0094] 1,4-Diacetylpiperazine-2,5-dione (1.19g, 6mmol) and 5-bromo-2 furfural (2.63g, 15mmol) were placed in a 50ml single-necked round bottom flask, and then 28ml DMF, under the protection of nitrogen, heat and stir, raise the temperature to 120°C, add 3.32ml of triethylamine through a syringe, after the completion, the reaction system turns from colorless to red immediately, continue to react for 12 hours, after the completion of the reaction, cool to room temperature, produce The yellow precipitate was collected by filtration, washed with acetone, and the product was collected to...

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Abstract

The invention relates to the technical field of polymer photovoltaic materials, in particular to a fluorine-containing two-dimensional conjugate benzo-difuran and pyrazine copolymer photovoltaic material, and a preparation method and application thereof. The structural formula of the fluorine-containing two-dimensional conjugate benzo-difuran and pyrazine copolymer photovoltaic material is shown as follows (please see the specifications for the formula), wherein R is an alkyl group. A copolymer is an electronic donor material, and the fluorine-containing two-dimensional conjugate benzo-difuranand pyrazine copolymer photovoltaic material is applied to a polymer solar cell, has wide visible region absorption, the low HOMO energy level, the relative narrow band gap and the high photovoltaicconversion efficiency.

Description

technical field [0001] The invention relates to the technical field of polymer photovoltaic materials, in particular to a fluorine-containing two-dimensional conjugated benzodifuran and pyrazine copolymer photovoltaic material, a preparation method and an application. Background technique [0002] With the increasingly serious phenomenon of global warming and the depletion of fossil energy (coal, oil and natural gas, etc.), countries all over the world have adopted strict controls on carbon dioxide emissions. Therefore, solar energy, as a renewable clean energy, has been paid more and more attention by the global scientific and industrial circles. As a new type of solar cell, polymer solar cells have achieved rapid development in the past two decades due to their unique advantages of light weight and large-area flexible devices that can be printed, and have become the current global energy field. One of the hot spots. [0003] Research progress of polymer solar cell materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12H01L51/42H01L51/44H01L51/46
CPCC08G61/125C08G61/122C08G2261/124C08G2261/414C08G2261/91C08G2261/228C08G2261/3221C08G2261/3222C08G2261/3242C08G2261/354H10K85/111H10K85/151H10K30/80H10K30/00Y02E10/549
Inventor 刘波王晓波王钢刘骏何敏胡霞陈远道王菲菲
Owner HUNAN UNIV OF ARTS & SCI
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