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A kind of preparation method and application of conjugated polymer for organic semiconductor

A technology of conjugated polymers and organic semiconductors, applied in semiconductor/solid-state device manufacturing, semiconductor devices, electric solid-state devices, etc., can solve the problems of poor matching between absorption spectrum and solar spectrum, low energy conversion efficiency, and energy transfer efficiency. Low-level problems, to achieve the effect of improving photoelectric conversion efficiency, simple structure, improving charge transport properties and stability

Active Publication Date: 2017-07-18
浙江永金生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although people have invested a lot of research on organic solar cells and achieved rapid development, the efficiency of organic solar cells has been greatly improved, but the energy conversion efficiency of organic solar cells is still lower than that of silicon solar cells. One of the reasons is that The carrier mobility of polymers is several orders of magnitude lower than that of inorganic single crystal materials
The spectral response of the currently used conjugated polymer photovoltaic materials is relatively poor, and its absorption spectrum cannot match the solar spectrum well, which is another important reason for the low energy transfer efficiency.

Method used

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  • A kind of preparation method and application of conjugated polymer for organic semiconductor
  • A kind of preparation method and application of conjugated polymer for organic semiconductor
  • A kind of preparation method and application of conjugated polymer for organic semiconductor

Examples

Experimental program
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Effect test

Embodiment 1

[0046] This embodiment discloses a conjugated polymer P1 with the following structural formula:

[0047]

[0048] Among them, n=30, R 1 for C 16 h 33 , R 2 for C 10 h 21 .

[0049] The preparation process of conjugated polymer P1 is as follows:

[0050] One, have the preparation of the compound A of following structural formula:

[0051]

[0052] The preparation method of compound A comprises the steps:

[0053] 1. Under nitrogen protection, dissolve 1.32g (2.0mmol) of 2-dimethoxyphosphono-4,5-bis(hexadecyl)-1,3-dithiol (C) in 60mL of anhydrous tetrahydrofuran The solution was cooled to -78°C, and 2.0mL of 1.5M LDA (3.0mmol) cyclohexane solution was slowly added. After the addition was completed, the reaction was stirred at -78°C for 3h, and then 0.22g (1.0mmol) of benzo [1,2-b:4,5-b']dithiophene-4,8-dione (D) in 10mL anhydrous tetrahydrofuran solution for Wittig-Horner reaction, heat preservation reaction for 0.5h, return to room temperature, continue reaction ...

Embodiment 2

[0087] This embodiment discloses a conjugated polymer P2 with the following structural formula:

[0088]

[0089] Among them, n=10, R 1 for H, R 2 for C 10 h 21 .

[0090] The preparation process of conjugated polymer P2 is as follows:

[0091] One, have the preparation of the compound A of following structural formula:

[0092]

[0093] The preparation method of compound A comprises the steps:

[0094] 1. Under the protection of nitrogen, cool the solution of 0.42g (2.0mmol) 2-dimethoxyphosphono-1,3-dithiol (C) in 40mL anhydrous tetrahydrofuran to -78℃, and slowly add 2.0mL concentration It is a solution of 1.5M LDA (3.0mmol) in cyclohexane. After the addition is complete, stir and react at -78°C for 3h, then add 0.22g (1.0mmol) of benzo[1,2-b:4,5-b' ] Dithiophene-4,8-dione (D) in 10 mL of anhydrous tetrahydrofuran was subjected to Wittig-Horner reaction, kept warm for 0.5 h, then returned to room temperature, continued for 12 h, and stopped the reaction. The exce...

Embodiment 3

[0102] An organic solar cell device, using glass as a substrate, indium tin oxide (ITO) as a conductive layer, and using the conjugated polymer P1 in Example 1 as a conjugated polymer.

[0103] The structure of the organic solar battery device is: glass / ITO / PEDOT:PSS / active layer / Al, wherein ITO is indium tin oxide with a sheet resistance of 10Ω / □˜20Ω / □. PEDOT is poly(3,4-ethylenedioxythiophene), and PSS is poly(styrenesulfonic acid). The material of the active layer is a mixture, including the electron donor material based on the conjugated polymer P1 and the [6,6]phenyl-C 61 - Butyric acid methyl ester ([6,6]-phenyl-C61-butyric acid methyl ester, PCBM) is an electron acceptor material.

[0104] The fabrication process of the organic solar cell device is as follows:

[0105] After the ITO glass is ultrasonically cleaned, it is treated with oxygen-Plasma, and a PEDOT:PSS layer is coated on the ITO, where the colon ":" indicates mixing.

[0106] On the PEDOT:PSS layer, the a...

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Abstract

The invention discloses a conjugated polymer used for organic semiconductors and a preparation method thereof. The general structural formula of the conjugated polymer is as follows: wherein, n is a natural number between 10 and 100; R1 is H, or C1 to C20 The alkyl group, R2 is the alkyl group of C1~C10. The conjugated polymer can be used in organic solar cell devices, organic electroluminescence devices, organic field effect transistors, organic lasers and the like.

Description

technical field [0001] The invention relates to the field of organic semiconductor materials, in particular to a preparation method and application of a conjugated polymer with photoelectric function. Background technique [0002] Organic solar cells have attracted widespread attention as a potential renewable energy source due to their incomparable advantages over inorganic solar cells, such as low cost, simple manufacturing process, light weight, and large-area flexible preparation. The performance of organic solar cells has steadily improved over the past decade, with energy conversion efficiencies approaching 10%. [0003] Although people have invested a lot of research on organic solar cells and achieved rapid development, the efficiency of organic solar cells has been greatly improved, but the energy conversion efficiency of organic solar cells is still lower than that of silicon solar cells. One of the reasons is that The carrier mobility of polymers is several order...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12H01L51/42H01L51/46
CPCC08G61/123C08G61/126C08G2261/3244C08G2261/145C08G2261/334C08G2261/91C08G2261/514C08G2261/95C08G2261/92H10K85/151H10K30/20Y02E10/549
Inventor 杨荣
Owner 浙江永金生物科技有限公司
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