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Polymer or micro-molecular material having molecular main chain comprising benzophene group, preparation method and application thereof

A technology of benzodisulfone phenyl and benzodisulfone phene, which is applied in the field of organic solar cells, can solve the problems of low carrier mobility, narrow absorption spectrum, poor stability, etc., achieve broad absorption spectrum and enhance molar absorption coefficient, the effect of improving coplanarity

Inactive Publication Date: 2017-06-30
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, current organic solar cells still have problems such as narrow absorption spectrum, low carrier mobility, low efficiency and poor stability, so it is necessary to develop new high-performance donor materials.

Method used

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  • Polymer or micro-molecular material having molecular main chain comprising benzophene group, preparation method and application thereof
  • Polymer or micro-molecular material having molecular main chain comprising benzophene group, preparation method and application thereof
  • Polymer or micro-molecular material having molecular main chain comprising benzophene group, preparation method and application thereof

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Experimental program
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Embodiment 1

[0028] In the present embodiment, the polymer structural formula is as follows:

[0029]

[0030] The preparation of this polymer comprises the steps:

[0031] (1) Synthesis of benzodisulfone phenyl acceptor unit

[0032]

[0033] 0.3 g of compound 1, 0.3 g of m-chloroperoxybenzoic acid (mCPBA) and 20 mL of dichloromethane were added to a round-necked flask, and the reaction was stirred at room temperature for 24 hours. After the reaction was completed, spin-dried and passed through a silica gel column to obtain a yellow product 3 with a mass of 0.19 g and a yield of 57%.

[0034] 1 H-NMR (400MHz, CDCl 3 ):δ7.44(d,2H),6.73(d,2H),4.45(t,4H),2.0-1.81(m,4H),1.55-1.45(m,4H),1.39-1.33(m,8H ), 0.89(t,6H). The calculated molecular weight is C 26 h 36 Br 2 o 6 S 2 ,666.03, the actual mass spectrum is as figure 2 shown.

[0035] (2) Preparation of polymer donor material

[0036]

[0037] In the three-necked flask, add 0.1g compound 4, 0.074g compound 3 and 10mL t...

Embodiment 2

[0041] In the present embodiment, the polymer structural formula is as follows:

[0042]

[0043] The preparation of this polymer comprises the steps:

[0044]

[0045] Add 0.1 g of compound 3, 0.061 g of 2,5-trimethyltinthiophene and 10 mL of toluene into a three-necked flask, replace nitrogen three times, add (4 mg of catalyst tris(dibenzylideneacetone) dipalladium and 4.63 mg of triphenylphosphine , Replace nitrogen three times again, and react under reflux for 24 hours. After the reaction, the product is carried out for Soxhlet extraction, using methanol, acetone and n-hexane as solvents, and finally using toluene to obtain 52 mg of the polymer product, with a yield of 59%. 1 H-NMR (400MHz, CDCl 3 ):δ7.4-7.3(m,2H),7.1-6.9(m,2H),4.1-3.8(m,4H),2.0-1.9(m,2H),1.3-1.2(m,16H),1 -0.9(m,12H).

[0046] The above-prepared polymers can be used as donor materials in organic solar cells. The structure of the organic solar cell is as figure 1 As shown, the anode is made of in...

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Abstract

The invention provides a polymer or a micro-molecular material having a molecular main chain comprising a benzophene group, which has sulfonyl group having strong electron-withdrawing capability, can form a donor material by connecting with other groups having donor characteristic, has excellent charge transmission performance, and can widen absorption of the material in a visible light zone. The preparation method of the material is easy to carry out, the material can be used for the donor material of an organic solar cell, and can increase the efficiency of a cell device.

Description

technical field [0001] The invention relates to polymers or small molecule materials containing benzodisulfone groups in the molecular main chain, which can be used in the technical field of organic solar cells. Background technique [0002] Organic solar cells have become a research hotspot in the field of photovoltaics due to their advantages of light weight, low cost, and easy flexible large-area preparation. The photosensitive active layer material is the main material that absorbs sunlight and converts it into electrical energy, and its characteristics directly determine the performance of the battery device. . [0003] However, current organic solar cells still have problems such as narrow absorption spectrum, low carrier mobility, low efficiency, and poor stability, requiring the development of new high-performance donor materials. Contents of the invention [0004] The present invention provides a polymer or small molecule material containing benzodisulfone phene ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12H01L51/42C07D519/00C07D495/04
CPCC07D495/04C07D519/00C08G61/126C08G2261/3243C08G2261/91C08G2261/514C08G2261/512C08G2261/414C08G2261/3223C08G2261/1452C08G2261/124C08G2261/1424H10K85/151H10K30/00Y02E10/549
Inventor 葛子义刘志洋彭瑞祥蒋卫刚李旺雷涛管倩
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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