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Organic solar cell acceptor material, preparation method thereof and organic solar cell

A solar cell and acceptor material technology, applied in the field of organic solar cells, can solve the problems of narrow absorption range, low mobility, and wide optical bandgap, and achieve the effects of wide absorption range, improved mobility, and narrow optical bandgap

Pending Publication Date: 2022-03-04
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing non-fullerene fused-ring electron acceptor materials still face problems such as narrow absorption range, wide optical bandgap, and low mobility.

Method used

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  • Organic solar cell acceptor material, preparation method thereof and organic solar cell
  • Organic solar cell acceptor material, preparation method thereof and organic solar cell
  • Organic solar cell acceptor material, preparation method thereof and organic solar cell

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preparation example Construction

[0067] In a second aspect, the present application also provides a method for preparing an organic solar cell acceptor material, such as figure 1 shown, including the following steps:

[0068] (1) Synthesis of compound 2: under the protection of an inert atmosphere, dropwise add the tetrahydrofuran solution containing compound 1 to the tetrahydrofuran solution containing NaH. Compound 1 is 6-methoxy-1-indanone. After the reaction, cool to room temperature , the reaction solution was distilled under reduced pressure, extracted, dried, filtered, and then purified by silica gel column chromatography to obtain compound 2.

[0069] As an optional technical solution of this application, during the synthesis of compound 2, the reaction temperature is controlled at -78°C, and an appropriate amount of CuCl can also be added 2 , THF solution can also be other more polar solvents, as long as it is a solvent with good solubility to the raw materials, which is beneficial to the reaction a...

Embodiment 1

[0108] The preparation method of the compound shown in the formula (I-1) of the present embodiment comprises the following steps:

[0109] (1) Synthesis of Compound 2:

[0110] 6-Methoxy-1-indanone was selected as compound 1, which was purchased from Sarn Chemical Technology (Shanghai) Co., Ltd.

[0111] Add compound 1 (5 g, 0.031 mol) dissolved in ultra-dry reagent tetrahydrofuran solution (100 mL) into a 125 mL constant-pressure dropping funnel, and add NaH (1.85 g, 1.85 g, containing 60% silicone oil), at room temperature, degassing several times to fill the system with nitrogen, and then under the atmosphere of nitrogen protection, the solution containing compound 1 was added dropwise to the tetrahydrofuran solution containing NaH, and stirred at room temperature until no longer generate H 2 until. After the reaction was completed, deionized water was slowly added to quench, the tetrahydrofuran solvent was first spin-dried, and then extracted three times with dichlorome...

Embodiment 2

[0133] The preparation method of the compound shown in the formula (I-2) of the present embodiment comprises the following steps:

[0134] (1) Synthesis of Compound 2:

[0135] 6-Methoxy-1-indanone was selected as compound 1, which was purchased from Sarn Chemical Technology (Shanghai) Co., Ltd.

[0136] Add compound 1 (5 g, 0.031 mol) dissolved in ultra-dry reagent tetrahydrofuran solution (100 mL) into a 125 mL constant-pressure dropping funnel, and add NaH (1.85 g, 1.85 g, containing 60% silicone oil), at room temperature, degassing several times to fill the system with nitrogen, and then under the atmosphere of nitrogen protection, the solution containing compound 1 was added dropwise to the tetrahydrofuran solution containing NaH, and stirred at room temperature until no longer generate H 2 until. After the reaction was completed, deionized water was slowly added to quench, the tetrahydrofuran solvent was first spin-dried, and then extracted three times with dichlorome...

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Abstract

The invention provides an organic solar cell acceptor material and a preparation method thereof, and an organic solar cell, the organic solar cell acceptor material has a compound of the following chemical structure general formula (I), R1 is selected from one of C6-C12 aryl, C6-C12 heteroaryl, C6-C24 linear alkyl, C6-C24 branched alkyl, C6-C24 linear alkoxy, and C6-C24 branched alkoxy; r2 is selected from one of a hydrogen atom, an aryl group with 6 to 12 carbon atoms, a heteroaryl group with 6 to 12 carbon atoms, a linear alkyl group with 6 to 24 carbon atoms, a branched alkyl group with 6 to 24 carbon atoms, a linear alkoxy group with 6 to 24 carbon atoms and a branched alkoxy group with 6 to 24 carbon atoms; r1 and R2 are the same or different. The organic solar cell acceptor material provided by the invention is wider in absorption range and narrower in optical band gap, and the electron mobility can be improved.

Description

technical field [0001] The invention belongs to the technical field of organic solar cell materials, and in particular relates to an organic solar cell acceptor material, a preparation method thereof, and an organic solar cell. Background technique [0002] Organic Photovoltaics (OPV for short) is a new type of photovoltaic device developed in the 1980s based on organic semiconductor light-absorbing materials to achieve photoelectric conversion effects. Studies have shown that compared with traditional inorganic silicon solar cells, OPV has the advantages of adjustable molecular structure, low price, light weight and portability, and can use roll-to-roll and spray printing technology to realize fast and large-area processing of flexible devices, which has attracted widespread attention. And gradually move towards industrialization. [0003] The acceptor materials of organic solar cells are mainly divided into fullerene acceptors and non-fullerene acceptor materials. Due to...

Claims

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Application Information

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IPC IPC(8): C07D333/78H01L51/42H01L51/46
CPCC07D333/78H10K85/615H10K85/655H10K85/626H10K85/6576H10K30/00Y02E10/549
Inventor 李翠红张雅雅王丽雯黄浩高燕王毅锴
Owner BEIJING NORMAL UNIVERSITY
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