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Polymer acceptor material

A technology of acceptor materials and polymers, which is applied in the manufacture of electrical solid-state devices, semiconductor devices, semiconductor/solid-state devices, etc., can solve the problems of low device efficiency, achieve strong absorption, improve light-harvesting ability, and broaden the absorption spectrum.

Pending Publication Date: 2020-04-24
GUANGDONG POLYTECHNIC NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although all-polymer solar cells have many advantages and development potentials, the current device efficiency of all-polymer solar cells is still low, and there are relatively few high-performance polymer electron acceptor materials reported, especially polymers with near-infrared absorption. Therefore, the design and development of new high-efficiency polymer electron acceptor materials is of great significance to the development of organic solar cells.

Method used

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Examples

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Embodiment 1

[0029] Example 1: The synthetic route of a representative polymer acceptor material is shown below:

[0030]

[0031] (1) Monomers NDI1 and NDI2 were synthesized according to the method disclosed in the literature (J. Mater. Chem. A, 2017, 5, 5449).

[0032] (2) Monomer PDI1 was synthesized according to the method disclosed in the literature (Macromolecules, 2017, 50, 7559).

[0033] (3) Synthesis of Polymer P1:

[0034] Compound NDI1 (197.0 mg, 0.2 mmol) and compound TN1 (124.8 mg, 0.2 mmol) were weighed into a reaction tube, chlorobenzene (3 mL) was added, and argon gas flowed for 20 minutes. Then quickly add catalyst and ligand, Pd 2 (dba) 3 (3mg), P (o-tol) 3 (6 mg), argon was passed through the reaction tube to fill the reaction tube with argon, the lid was closed, and the polymerization reaction was carried out, and the reaction was carried out at 140° C. for 48 hours. After the reaction is over, drop the reaction solution into methanol to precipitate the polymer...

Embodiment 2

[0043] Example 2: Characterization of organic photovoltaic devices

[0044] The representative polymer materials P1 and P2 synthesized in Example 1 are used as electron acceptor materials in organic photovoltaic devices, and the device structure is as follows figure 1 shown.

[0045] The ITO substrate is ultrasonically cleaned in acetone, 1%-3% alkaline cleaning solution, and isopropanol for 20 minutes in sequence, dried in an oven at about 80° C., and plasma treated in a low vacuum. Then, a layer of interfacial layer material is spin-coated on the ITO substrate, and then a layer of active layer material is spin-coated. Then spin-coat a layer of interfacial layer material on the active layer, and finally place the substrate loaded with the active layer in a vacuum thermal evaporation chamber. -6 mbar), metal electrodes were evaporated on the active layer. Organic solar cell devices usually have an energy density of 1000W / m 2 The AM 1.5G was tested and characterized under a...

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Abstract

The invention relates to a polymer acceptor material. The polymer acceptor material is characterized by comprising an electron-deficient conjugated unit, and one of a hydrogen atom, a halogen atom, oran alkyl group having 1 to 30 carbon atoms, at least one of the carbon atoms is substituted with a halogen atom, an oxygen atom, an alkenyl group, an alkynyl group, an aryl group, a hydroxyl group, an amino group, a carbonyl group, a carboxyl group, an ester group, a cyano group, or a nitro group. The material is a conjugated polymer containing thienobenzene, the material is a conjugated main chain with a quinone structure, and the absorption spectrum of the material can be effectively broadened. The material has near-infrared absorption and high electron mobility, can be applied to organic photovoltaic devices as an electron acceptor material, and achieves a good device effect.

Description

technical field [0001] The present invention relates to a polymer acceptor material. Background technique [0002] Energy shortage and environmental pollution are major issues facing my country's sustainable economic development, and they are also issues that countries all over the world pay attention to. The development of new green energy technology is one of the important ways to solve the above problems, and solar energy has become the focus of widespread attention due to its advantages of green renewable, large reserves, wide distribution and easy access. Therefore, the development of solar power generation technology is of great significance for reducing pollution and reducing carbon dioxide emissions, and realizing the development of a low-carbon economy. After years of hard work, solar cell power generation technology has made important progress, and crystalline silicon solar cell technology has developed relatively mature and entered the market, occupying a dominan...

Claims

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Application Information

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IPC IPC(8): C08G61/12H01L51/46
CPCC08G61/126C08G61/12C08G2261/124C08G2261/18C08G2261/3223C08G2261/3243C08G2261/91C08G2261/3241C08G2261/1412C08G2261/414H10K85/111H10K85/113Y02E10/549
Inventor 谢锐浩黄杰滨何影记
Owner GUANGDONG POLYTECHNIC NORMAL UNIV
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