Benzodisulfone thienyl polymer as well as preparation method and application thereof

A technology of benzodisulfone and benzodisulfone, which is applied in the field of benzodisulfophene polymers, can solve the problems of low carrier mobility, narrow absorption spectrum, poor stability, etc., and achieves broad absorption Spectroscopy, Enhanced Molar Absorption Coefficient, Enhanced Coplanarity Effect

Inactive Publication Date: 2017-09-15
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, 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 polymer acceptor materials
At present, the relevant literature and patents have not designed and synthesized polymer acceptor materials with benzobissulfone connected to other acceptor units as the main chain

Method used

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  • Benzodisulfone thienyl polymer as well as preparation method and application thereof
  • Benzodisulfone thienyl polymer as well as preparation method and application thereof
  • Benzodisulfone thienyl polymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In the present embodiment, the polymer structural formula is as follows:

[0031]

[0032] The preparation of this polymer comprises the steps:

[0033] (1) Synthesis of benzodisulfone phenyl acceptor unit

[0034]

[0035] Add compound 1 (0.5g), bis-boronate (0.95g) and appropriate amount of potassium acetate into a three-necked flask, replace nitrogen three times, add catalyst [1,1'-bis(diphenylphosphino)ferrocene] di Palladium chloride (50 mg), and nitrogen was replaced three times, and finally 50 mL of dry 1,4-dioxane was added to react under reflux for 12 hours. After the reaction was completed, the solvent was removed with a rotary evaporator, then extracted with chloroform and water, and dried with anhydrous sodium sulfate after extraction. After being spin-dried, it was passed through a silica gel column to obtain a yellow product 2 with a mass of 0.55 g and a yield of 97%.

[0036] 1H-NMR (400MHz, CDCl3) of the product: δ7.8(s, 2H), 4.03(t, 2H), 3.77(t...

Embodiment 2

[0046] In this example, the polymer is the same as that of Example 1.

[0047] The polymer was prepared using stille coupling polymerization:

[0048]

[0049] Add compound 1 (100 mg), compound 5 (127 mg), tetrakistriphenylphosphine palladium (4 mg) and tris(dibenzylideneacetone) dipalladium (4 mg) into the polymerization tube, vacuumize and fill with nitrogen three times, and add 5 ml of toluene , reacted at 85 degrees Celsius for 48 hours, and then added an appropriate amount of phenyl borate and bromobenzene for capping. After the reaction was completed, the precipitate was poured into methanol, filtered, and dried. Finally, the product was subjected to Soxhlet extraction, respectively using methanol, acetone and n-hexane as solvents, and finally using toluene to obtain 48 mg of polymer product 6 with a yield of 35%.

[0050] 1H-NMR (400MHz, CDCl3) of the product: δ8.19(s,1H),8.05(d,1H),7.81(d,1H),7.70(d,1H),7.61(s,1H ),7.18(d,1H),4.03-3.77(d,4H),3.04-2.79(d,4H),2.10-...

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Abstract

The invention provides a benzodisulfone thienyl polymer which is provided with a sulfone group with a strong electron-withdrawing ability, and the sulfone group can be connected with other groups with an electron-withdrawing property to form a receptor material which has excellent charge transportation performance and can broaden absorption of materials in a visible region. A preparation method of the material provided by the invention is simple and feasible, and can be used for a receptor material of an organic solar cell to improve the efficiency of a cell device.

Description

technical field [0001] The present invention relates to benzodisulfone phenyl polymer, its preparation method and application. 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, organic solar cells still have problems such as narrow absorption spectrum, low carrier mobility, low efficiency, and poor stability. It is necessary to develop new high-performance polymer acceptor materials. At present, the relevant literature and patents have not designed and synthesized polymer acceptor materials with benzobissulfone connected to other acceptor units as the main chain. Contents of the invention [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12H01L51/42H01L51/46
CPCC08G61/126C08G2261/124C08G2261/1424C08G2261/1412C08G2261/91C08G2261/414C08G2261/411C08G2261/3246H10K85/113H10K85/151H10K30/00Y02E10/549
Inventor 葛子义雷涛彭瑞祥魏强刘志洋杨荣娟管倩
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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