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D-A type conjugated polymer, preparation method and applications thereof

A conjugated polymer, D-A technology, applied in the field of solar cells, can solve the problems of cost, environmental pollution, limited popularization, etc., and achieve the effect of low energy band gap and high efficiency of spectral absorption

Active Publication Date: 2019-01-01
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, polycrystalline silicon thin-film solar cells as a representative of inorganic solar cells have been commercialized, but their high cost and serious environmental pollution limit their popularization.

Method used

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  • D-A type conjugated polymer, preparation method and applications thereof
  • D-A type conjugated polymer, preparation method and applications thereof
  • D-A type conjugated polymer, preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The present invention provides a kind of D-A type conjugated polymer, and the structural formula of described polymer is formula I, as follows:

[0030]

[0031] The D-A type conjugated polymer formula I provided in this example is prepared by the following method:

[0032] 1 mol of the compound shown in formula IV and 5 mol (4,8-bis(octyloxy)benzo[1,2-B:4,5-B']dithiophene-2,6-diyl)bis( Tributyltin) is placed in a toluene solvent, using tris(2-methylphenyl)phosphine as a catalyst, under the protection of an inert gas, the temperature is controlled to be 110°C, the reaction is protected from light for 30h, and the target product formula I is obtained by column chromatography purification, The synthetic route of described formula I is as follows:

[0033]

[0034] figure 1 For the D-A type conjugated polymer provided by the present embodiment in CHCl The ultraviolet-visible absorption spectrum figure in CHCl3, figure 2 The ultraviolet-visible absorption spectrum...

Embodiment 2

[0042] The present invention provides a kind of D-A type conjugated polymer, and the structural formula of described polymer is formula I, as follows:

[0043]

[0044] The D-A type conjugated polymer formula I provided in this example is prepared by the following method:

[0045] 1mol of the compound shown in formula IV and 10mol (4,8-bis(octyloxy)benzo[1,2-B:4,5-B']dithiophene-2,6-diyl)bis( Tributyltin) was placed in toluene solvent, tri(2-methylphenyl)phosphine and copper oxide were used as catalysts, under the protection of inert gas, the temperature was controlled at 100°C, the reaction was protected from light for 40 hours, and the target product was obtained by column chromatography purification Formula I, the synthetic route of described formula I is as follows:

[0046]

[0047] The invention provides a solar cell device, such as Figure 4As shown, the solar cell device includes a glass (Glass) layer, an indium tin oxide (ITO) conductive layer, a zinc oxide (Z...

Embodiment 3

[0053] The present invention provides a kind of D-A type conjugated polymer, and the structural formula of described polymer is formula I, as follows:

[0054]

[0055] The D-A type conjugated polymer formula I provided in this example is prepared by the following method:

[0056] 1 mol of the compound shown in formula IV and 5 mol (4,8-bis(octyloxy)benzo[1,2-B:4,5-B']dithiophene-2,6-diyl)bis( Tributyltin) is placed in toluene solvent, adopts three (2-methylphenyl) phosphine, copper oxide and tris (dibenzylidene acetone) dipalladium as catalyst, under inert gas protection, control temperature is 105 ℃, avoid Light reaction 50h, column chromatography purification obtains target product formula I, and the synthetic route of described formula I is as follows:

[0057]

[0058] The invention provides a solar cell device, such as Figure 4 As shown, the solar cell device includes a glass (Glass) layer, an indium tin oxide (ITO) conductive layer, a zinc oxide (ZnO) electron ...

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Abstract

The invention provides a D-A type conjugated polymer, a preparation method and applications thereof, wherein a compound having a structure represented by a formula defined in the specification, an electron donating monomer and a catalyst are subjected to light shielding reaction in an organic solvent system under the protection of an inert gas, and column chromatography purification is performed to obtain the target product. According to the present invention, the D-A type conjugated polymer can be used for solar cell devices, wherein the solar cell device sequentially comprises a glass layer,an indium tin oxide electric-conduction layer, a zinc oxide electron transport layer, a D-A type conjugated polymer and C71 mixing active layer, a molybdenum trioxide hole transport layer and a silver electrode layer from bottom to top; and the used fluoroboron dipyrrole group has a certain rigid plane structure and good carrier transporting property, and can form the donor-receptor (D-A) conjugated structure with the electron donating group, such that the low energy bandgap can be obtained, and the spectral absorption of the material can be broadened and enhanced so as to be used for constructing high-efficiency organic solar cell materials.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a D-A type conjugated polymer and its preparation method and application. Background technique [0002] So far, energy has always been an indispensable driving force for human development and progress, and the development and utilization of energy is also a long-term topic. With the increasing global demand for energy, traditional energy sources such as coal, oil, and natural gas are about to run out. , as a clean energy source, solar energy is favored by people because of its inexhaustible and inexhaustible advantages. Solar cells are devices that convert solar energy into electrical energy and are considered to be the most efficient and direct form of solar energy utilization. [0003] At present, polycrystalline silicon thin-film solar cells as a representative of inorganic solar cells have been commercialized, but their unfavorable factors such as high cost and serious e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12H01L51/42H01L51/46
CPCC08G61/122C08G61/126C08G2261/124C08G2261/91C08G2261/51C08G2261/46C08G2261/3247C08G2261/3243C08G2261/146C08G2261/1424C08G2261/18H10K85/113H10K30/30Y02E10/549
Inventor 秦元成何安旺孙延宸谢宇
Owner NANCHANG HANGKONG UNIVERSITY
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