Method for improving photoelectric efficiency of organic polymer solar cell

A technology for solar cells and photoelectric efficiency, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of limited improvement of photoelectric efficiency of organic polymer solar cells, achieve superior wettability and permeability, and reduce hole transport The effect of speed attenuation and photoelectric efficiency improvement

Inactive Publication Date: 2020-05-29
长沙而道新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the improvement of the photoelectric efficiency of organic polymer solar cells by the above methods is still limited, so it is still necessary to fi

Method used

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  • Method for improving photoelectric efficiency of organic polymer solar cell
  • Method for improving photoelectric efficiency of organic polymer solar cell
  • Method for improving photoelectric efficiency of organic polymer solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for improving the photoelectric efficiency of organic polymer solar cells includes the following steps:

[0034] S1. Physically blend 2g of donor material and 2g of acceptor material in 10ml of toluene to form a precursor,

[0035] S2. Add 0.5wt% of polyethylene glycol of the precursor to the above precursor, and use the method of magnetic stirring to mix uniformly at room temperature to form a blended material.

[0036] S3. Using the above blended material as the active layer, spin-coated on the anode substrate in the organic polymer solar cell;

[0037] Among them, the thickness of the active layer is 20 nm.

[0038] The chemical structure of the donor material is as follows:

[0039]

[0040] The molecular weight of the donor material is 23000 Da, PDI = 2.12;

[0041] Acceptor material selected from PC 61 BM;

[0042] The number average molecular weight of polyethylene glycol is 600.

[0043] The polyethylene glycol is pretreated before use, and the steps include:

[0044]...

Embodiment 2

[0050] A method for improving the photoelectric efficiency of organic polymer solar cells includes the following steps:

[0051] S1. Physically blend 8g of donor material and 2g of acceptor material in 14ml of toluene to form a precursor,

[0052] S2. Add the polyethylene glycol of the precursor with a mass of 1 wt% to the precursor, and use the method of magnetic stirring to mix uniformly at room temperature to form a blended material,

[0053] S3. Using the above blended material as the active layer, spin-coated on the anode substrate in the organic polymer solar cell;

[0054] Among them, the thickness of the active layer is 100 nm.

[0055] The chemical structure of the donor material is as follows:

[0056]

[0057] The molecular weight of the donor material is 15500 Da, PDI=1.82;

[0058] Acceptor material selected from PC 71 BM;

[0059] The number average molecular weight of polyethylene glycol is 2,000.

[0060] The polyethylene glycol is pretreated before use, and the steps includ...

Embodiment 3

[0067] A method for improving the photoelectric efficiency of organic polymer solar cells includes the following steps:

[0068] S1. Physically blend 4g of donor material and 2g of acceptor material in 12ml of toluene to form a precursor,

[0069] S2. Add 0.75wt% of polyethylene glycol of the precursor to the aforementioned precursor, and use a magnetic stirring method to mix uniformly at room temperature to form a blended material.

[0070] S3. Using the above blended material as the active layer, spin-coated on the anode substrate in the organic polymer solar cell;

[0071] Among them, the thickness of the active layer is 80 nm.

[0072] The chemical structure of the donor material is as follows:

[0073]

[0074] The molecular weight of the donor material is 14,500 Da, PDI=1.98;

[0075] Acceptor material selected from PC 71 BM;

[0076] The number average molecular weight of polyethylene glycol is 1,500.

[0077] The polyethylene glycol is pretreated before use, and the steps include:

...

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Abstract

The invention discloses a method for improving the photoelectric efficiency of an organic polymer solar cell. The preparation method comprises the following steps of: S1, physically blending a donor material and an acceptor material in toluene to form a precursor, S2, adding polyethylene glycol into the precursor, and uniformly mixing the polyethylene glycol and the precursor to form a blended material; and S3, spin-coating the blended material serving as an active layer, an organic polymer solar cell. When the donor material in the organic polymer solar cell is a thiophene donor material, thepolyethylene glycol is added into the precursor obtained by physically blending the donor material and the acceptor material to serve as an additive, and then when the blended material serves as theactive layer to be applied to the organic polymer solar cell; the photoelectric efficiency of the organic polymer solar cell can be remarkably improved.

Description

Technical field [0001] The invention belongs to the field of optoelectronics, and specifically relates to a method for improving the photoelectric efficiency of an organic polymer solar cell. Background technique [0002] Energy is the basis of traditional Chinese medicine for human survival and economic development. With the rapid development of society, a series of energy crises have emerged, and the contradiction between energy supply and demand has become increasingly prominent. With the increasing demand for energy by mankind, the opening and use of sustainable energy has become more and more important. As a clean and renewable energy source, solar energy has become the focus of scientific research in various countries. The preparation of solar cells with high photoelectric efficiency has long been a core subject in the field of photoelectricity. [0003] For a long time, thiophene series polymers are ideal donor materials for active layer materials of organic polymer solar c...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K85/113H10K30/20Y02E10/549
Inventor 彭清莲
Owner 长沙而道新能源科技有限公司
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