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Preparation method of fullerene thin film for organic solar cell

A technology of solar cells and fullerenes, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low conversion efficiency and high price, achieve the effects of reducing the content of impurities, mild preparation method conditions, and simple operation

Active Publication Date: 2019-04-09
北京富乐喜科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the share of crystalline silicon solar cells will decline due to the development of thin-film solar cells and other reasons in the next 10 years, its dominant position will not change fundamentally; Expensive equipment and other issues, there will be huge room for development

Method used

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  • Preparation method of fullerene thin film for organic solar cell
  • Preparation method of fullerene thin film for organic solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for preparing a fullerene film for an organic solar cell, comprising the steps of:

[0035]Step 1. Dissolve salicylic acid in deionized water to form a 2.0mol / L salicylic acid aqueous solution, add aniline under the protection of an inert protective gas, shake on a shaker for at least 20 minutes to mix evenly, and then add 5.0mol / L L of ammonium persulfate aqueous solution, placed on a shaker for at least 30 minutes to mix evenly, left to stand for at least 24 hours, centrifuged to remove the supernatant, purified water to wash the solid for at least 2 times, put the solid in an oven to dry, and then pulverize to obtain Powder A; the volume ratio of the salicylic acid aqueous solution, aniline and ammonium persulfate aqueous solution is 1:0.7:1.2 in turn; the shaking temperature of the shaker is 40°C, and the speed of the shaker is 200r / min; The drying temperature is 80°C, and the drying time is ≥1 hour; the particle size of the powder A is ≥100 mesh;

[0036]...

Embodiment 2

[0040] A method for preparing a fullerene film for an organic solar cell, comprising the steps of:

[0041] Step 1. Dissolve salicylic acid in deionized water to form a 3.0mol / L salicylic acid aqueous solution, add aniline under the protection of an inert protective gas, shake on a shaker for at least 20 minutes to mix evenly, and then add 6.0mol / L L of ammonium persulfate aqueous solution, placed on a shaker for at least 30 minutes to mix evenly, left to stand for at least 24 hours, centrifuged to remove the supernatant, purified water to wash the solid for at least 2 times, put the solid in an oven to dry, and then pulverize to obtain Powder A; the volume ratio of the salicylic acid aqueous solution, aniline and ammonium persulfate aqueous solution is 1:0.9:1.2 in sequence; the shaking temperature of the shaking table is 50°C, and the speed of the shaking table is 300r / min; The drying temperature is 100°C, and the drying time is ≥1 hour; the particle size of the powder A is ...

Embodiment 3

[0046] A method for preparing a fullerene film for an organic solar cell, comprising the steps of:

[0047] Step 1. Dissolve salicylic acid in deionized water to form a 2.5mol / L salicylic acid aqueous solution, add aniline under the protection of an inert protective gas, shake it on a shaker for at least 20 minutes to mix evenly, and then add 5.5mol / L L of ammonium persulfate aqueous solution, placed on a shaker for at least 30 minutes to mix evenly, left to stand for at least 24 hours, centrifuged to remove the supernatant, purified water to wash the solid for at least 2 times, put the solid in an oven to dry, and then pulverize to obtain Powder A; the volume ratio of the salicylic acid aqueous solution, aniline and ammonium persulfate aqueous solution is 1:0.8:1.4 in turn; the shaking temperature of the shaker is 45°C, and the speed of the shaker is 250r / min; The drying temperature is 90°C, and the drying time is ≥1 hour; the particle size of the powder A is ≥100 mesh;

[0...

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Abstract

The invention relates to the technical field of fullerene thin film preparation, in particular to a preparation method of a fullerene thin film for an organic solar cell. The method specifically comprises the following steps of adding a salicylic acid aqueous solution into aniline under the protection of an inert protective gas, shaking on a shaker, then adding an ammonium persulfate aqueous solution, shaking and standing on the shaker, and carrying out centrifugal washing, drying and grinding to obtain powder A; carrying out mixed reflux on a fullerene derivative and tetrahydrofuran, then adding the powder A, shaking on the shaker, volatilizing a solvent, and carrying out grinding to obtain powder B; carrying out pre-dispersion treatment on the powder B and zinc dialkyl dithiophosphate, then mixing the pre-dispersed powder B and zinc dialkyl dithiophosphate with graphene and a polytetrafluoroethylene emulsion, and then adding m-xylene for carrying out dispersion treatment to obtain dispersed slurry; and carrying out blade coating film formation on the dispersed slurry on a metal substrate to enable the slurry to form the film on the metal substrate, and then carrying out water washing and drying to obtain the fullerene thin film for the organic solar cell. The method has the advantages of being uniform in film forming, good in dispersibility, simple in preparation process, high in regularity and excellent in electrical property.

Description

technical field [0001] The invention relates to the technical field of preparation of fullerene thin films, in particular to a preparation method of fullerene thin films for organic solar cells. Background technique [0002] An organic solar cell is a solar cell whose core part is composed of organic materials. The photosensitive organic matter is mainly used as a semiconductor material, and the voltage is generated by the photovoltaic effect to form a current to realize the effect of solar power generation. [0003] The annual growth rate of China's photovoltaic cell production is 1-3 times, and the proportion of photovoltaic cell production to global production has also increased from 1.07% in 2002 to nearly 15% in 2008. The efficiency of commercial crystalline silicon solar cells has also increased from 13%-14% to 16%-17%. Overall, the international market share and technological competitiveness of China's solar cells have increased significantly. In terms of industria...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48H01L51/42
CPCH10K71/12H10K85/215H10K30/20Y02P70/50
Inventor 张振芳张文雯
Owner 北京富乐喜科技有限公司
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