Thiophene[3,4-f]isobenzofuran-4,8-diketone polymer as well as preparation method and application thereof

A 4-f, polymer technology, applied in the field of material chemistry and electrochemistry, can solve the problems of FTD-based polymers that have not been reported

Active Publication Date: 2019-05-21
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the corresponding FTD-based

Method used

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  • Thiophene[3,4-f]isobenzofuran-4,8-diketone polymer as well as preparation method and application thereof
  • Thiophene[3,4-f]isobenzofuran-4,8-diketone polymer as well as preparation method and application thereof
  • Thiophene[3,4-f]isobenzofuran-4,8-diketone polymer as well as preparation method and application thereof

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Experimental program
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Embodiment 1

[0047] The preparation method of thiophene[3,4-f]isobenzofuran-4,8-dione, the specific process is as follows:

[0048]

[0049] Synthesis of 2,5-dibromo-3,4-furandicarboxylic acid (2)

[0050] Furan-3,4-dicarboxylic acid (1) (16.7 mmol, 2.61 g) and 30 mL of glacial acetic acid were added to a 100 mL three-necked flask equipped with a constant pressure dropping funnel, a reflux condenser and a tail gas absorption device, and the temperature was raised to 50 o C was stirred for 0.5 h and cooled to room temperature. Liquid bromine (133.6 mmol, 21.4 g, 6.85 mL) was slowly added dropwise. After the addition was complete, the mixture was warmed to reflux and stirred overnight. Cool to room temperature, spin out most of the solvent under reduced pressure, add a small amount of deionized water, and slowly add sodium thiosulfate until the reaction no longer produces gas, filter, and rinse the filter cake with a small amount of deionized water three times. The resulting solid was ...

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Abstract

The invention provides a thiophene[3,4-f]isobenzofuran-4,8-diketone polymer as well as a preparation method and application thereof. The structure of the thiophene[3,4-f]isobenzofuran-4,8-diketone polymer is shown in the description, wherein n in the PBDFFTD is 24-25; n in the PBDFSFTD is 25-26. The PBDFFTD and the PBDFSFTD are high in spectral absorbability between 300-700 nm, and the optical band gaps of the PBDFFTD and the PBDFSFTD are respectively 1.81 eV and 1.77 eV; the PBDFFTD and the PBDFSFTD are matched with a non-fullerene receptor ITIC by absorption spectrum; the PBDFFTD and the PBDFSFTD are low in HOMO energy level; after primary optimization, the battery efficiency of the PBDFFTD is 7.00%, and the battery efficiency of the PBDFSFTD is 7.65%.

Description

technical field [0001] The invention belongs to the field of material chemistry and electrochemistry, and in particular relates to a thiophene[3,4-f]isobenzofuran-4,8-dione-based polymer, its preparation method and application. Background technique [0002] Polymer Solar Cells (PSCs) have: (1) light weight and good flexibility of polymer materials; (2) polymer materials are easy to design, tailor and prepare chemical structures, and there is no resource inventory limit; (3) ) battery devices can be prepared by solution processing methods such as screen printing, inkjet printing, and spin coating, which are simple and low in cost; Potential third-generation solar cells. Organic solar cells mainly include fullerene solar cells and non-fullerene solar cells according to different acceptor materials. Early organic solar cells were basically based on donor-acceptor conjugated polymers and fullerene derivatives (PC 61 BM,PC 71 BM, F-PCBM, etc.) fullerene organic solar cells. ...

Claims

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Application Information

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IPC IPC(8): C08G61/12H01L51/46H01L51/48H01L51/42
CPCY02E10/549
Inventor 高跃岳周燕香谭付瑞张伟风
Owner HENAN UNIVERSITY
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