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Preparation method of polymer solar cell

A technology of solar cells and polymers, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of long annealing treatment time and unfavorable production, and achieve the effects of shortening crystallization time, increasing crystallinity, and benefiting actual production

Active Publication Date: 2012-08-01
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems of the prior art that the annealing treatment time in a poor solvent atmosphere is long and unfavorable to production, and to provide a polymer solar cell that takes a short time, can be used in mass production, is safe and stable, and has high conversion efficiency preparation method

Method used

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  • Preparation method of polymer solar cell
  • Preparation method of polymer solar cell
  • Preparation method of polymer solar cell

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preparation example Construction

[0027] In the preparation method of the polymer solar cell provided by the invention, at room temperature, the mass ratio of 1:2-2:1 poly-3-hexylthiophene and [6,6]-C 61 -Methyl phenylbutyrate is dissolved in good solvent o-dichlorobenzene (ODCB) or chlorobenzene (CB) to make a mixed solution with a concentration of 8-30 mg / ml, and spin-coated with a spin coater to obtain a blended film of 80-300 nm , put the blended film in the annealing device, feed the gas, the flow rate of the gas is 5-100ml / s, the processing time is 30-300s, and the poor solvent n-hexane, toluene, anisole, cyclohexanone, n-heptyl The atmosphere annealing is carried out on the blended film with alkane vapor, and a metal electrode with a thickness of 60-300nm is prepared by a vacuum evaporation method to obtain a polymer solar cell.

[0028] The poly-3-hexylthiophene and [6,6]-C 61 - The mass ratio of methyl phenylbutyrate is preferably 1:1.

[0029] The flow rate of the gas is preferably 5-25ml / s.

[00...

Embodiment 1

[0039] combine figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 Example 1 will be described.

[0040] At room temperature, poly 3-hexylthiophene (P3HT) and [6,6]-C 61 - Methyl phenylbutyrate (PCBM) was dissolved in the good solvent o-dichlorobenzene (ODCB), prepared into a mixed solution with a total concentration of 20mg / ml, and then spin-coated with a spin coater to obtain a 100nm blended film; The blended film was placed in an annealing device at room temperature, and nitrogen gas was introduced to allow the poor solvent n-hexane to perform atmospheric annealing on the blended film in the form of steam. The flow rate of nitrogen gas was 10ml / s, and the processing time was 30s; A 100nm metal electrode was prepared by plating to obtain a polymer solar cell. The performance of the polymer solar cells was then characterized, and the average conversion efficiency of the cells was 1.82%.

Embodiment 2

[0055] At room temperature, the mass ratio of 1.5:1 poly 3-hexylthiophene (P3HT) and [6,6]-C 61 - Methyl phenylbutyrate (PCBM) was dissolved in the good solvent o-dichlorobenzene (ODCB), prepared into a mixed solution with a total concentration of 24mg / ml, and then spin-coated with a spin coater to obtain a 130nm blended film; The blended film was placed in an annealing device at room temperature, and nitrogen gas was introduced to allow the poor solvent n-hexane to perform atmospheric annealing on the blended film in the form of steam. The flow rate of nitrogen gas was 5ml / s, and the processing time was 60s; A 80nm metal electrode was prepared by plating to obtain a polymer solar cell. The performance of the polymer solar cells was then characterized, and the average conversion efficiency of the cells was 1.80%.

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Abstract

The invention discloses a preparation method of a polymer solar cell, belonging to the field of solar cell manufacture and solving the problem that batch production is not facilitated due to long time of traditional poor solvent atmosphere annealing technology. The preparation method of the polymer solar cell, provided by the invention, comprises the steps of: dissolving poly 3-hexylthiophene and [6,6]-C61-phenyl-butyric acid methyl ester into a good solvent to obtain a mixture solution, preparing a film, carrying out atmosphere annealing treatment on the film to prepare a metal electrode, thus obtaining the polymer solar cell, wherein the atmosphere annealing treatment is carried out on the film at a room temperature, the film is arranged in an annealing device, gas is introduced into the annealing device, and poor solvent steam is introduced for carrying out atmosphere annealing on the film. The method has the advantages of short time, capability of batch production, simpleness in operation, safety and stability; and the prepared polymer solar cell has the transformation rate of reaching 1.67-1.82 percent.

Description

technical field [0001] The invention relates to a preparation method of a polymer solar cell, which belongs to the field of solar cell manufacturing. Background technique [0002] Polymer solar cells are generally composed of a blend film of a conjugated polymer donor and a fullerene derivative acceptor sandwiched between a nano-indium tin oxide (ITO) transparent positive electrode and a metal negative electrode, which has the advantages of low cost and light weight. , easy to control, simple preparation process, and flexible devices can be prepared. Facing the increasingly severe energy crisis and the high pollution and high cost of traditional energy, polymer solar cells have become a current research hotspot as a new type of renewable energy. [0003] In polymer solar cells with polythiophene (P3HT) / fullerene derivatives (PCBM) blends as the photosensitive layer, the P3HT / PCBM system has the defect of poor electronic energy level matching, which limits the further improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48
CPCY02E10/549Y02P70/50
Inventor 杨小牛李俊王宁
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI