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Silicon-containing thiophene organic photoelectric material and preparation method and application thereof

A technology of organic optoelectronic materials and manufacturing methods, which can be used in organic chemistry, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., and can solve problems such as low photoelectric conversion efficiency

Inactive Publication Date: 2014-06-25
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, so far, the photoelectric conversion efficiency of organic solar cells is still much lower than that of inorganic solar cells

Method used

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  • Silicon-containing thiophene organic photoelectric material and preparation method and application thereof
  • Silicon-containing thiophene organic photoelectric material and preparation method and application thereof
  • Silicon-containing thiophene organic photoelectric material and preparation method and application thereof

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Effect test

Embodiment 1

[0062] The silicon-containing thiophene organic photoelectric material of the present embodiment 1 is R 1 and R 2 Using hexyl, R 3 , R 4 Taking 2-ethyl-hexyl as an example, its structural formula is as follows:

[0063]

[0064] It can be seen from the structural formula that the silicon-containing thiophene organic photoelectric material in Example 1 has a symmetrical structure, with a hexathiophene ring and two pairs of cyano groups, and the cyano groups serve as electron-withdrawing groups. Through this uniform and symmetrical structure, the silicon-containing Thiophene organic optoelectronic materials have relatively good light absorption properties and optoelectronic properties.

[0065] The preparation method of this hexathiophene adopts the concrete operations of the first scheme as follows:

[0066] 1) Preparation of 2-((2-bromo-5-(5-hexylthiophen-2-yl)thiophen-3-yl)methylene)malononitrile, whose structural formula is as follows:

[0067]

[0068] Since the ...

Embodiment 2

[0075] The silicon-containing thiophene organic photoelectric material of this embodiment is the same as that of Embodiment 1, but adopts the second preparation scheme, specifically as follows:

[0076] 1) Preparation of 2-(2-(3-formyl-5-(5-hexylthiophen-2-yl)thiophen-2-yl)-4,4'-bis(2-ethyl-hexyl)-dithiophene [3,2-b: 2',3'-d]silol-5-yl)-5-(5-hexylthiophen-2-yl)thiophene-3-carbaldehyde, its structural formula is as follows:

[0077]

[0078] The specific preparation process is: add 40mL THF to a pressure-resistant tube, quickly add 5-bromo-5'-hexyl-2,2'-dithiophene-4-carbaldehyde (0.43g, 1.20mmol) and 4,4' - Bis(2-ethyl-hexyl)-5,5'-bis(trimethyltin)-dithiophene[3,2-b:2',3'-d]silole (0.74g, 1.00mmol) , Nitrogen to below the liquid level for 20 minutes, then add Pd 2 (dba) 3 (0.0230g, 0.025mmol) and P(o-Tol) 3 (0.0152g, 0.050mmol), nitrogen was passed below the liquid level for 20 minutes, the lid was sealed, the temperature was raised to 80°C, and the reaction was carried...

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Abstract

The invention relates to the technical field of organic materials, and provides a silicon-containing thiophene organic photoelectric material, which comprises compounds shown as a structural formula (1). In the formula, R1, R2, R3 and R4 are same or different, and refer to H or C1-C20 alkyl; and m and n are same or different and refer to an integer from 0 to 10. The invention also provides a manufacturing method for the silicon-containing thiophene organic photoelectric material and application of the silicon-containing thiophene organic photoelectric material. The silicon-containing thiophene organic photoelectric material has thiophene ring and cyan, so the silicon-containing thiophene organic photoelectric material has wider spectral response and higher thermal stability and environmental stability. The manufacturing method for the condensed ring thiophene organic photoelectric material has the advantages of simple synthetic route, low manufacturing cost and wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of organic materials, and in particular relates to a silicon-containing thiophene organic photoelectric material, its manufacturing method and its application. Background technique [0002] Today's world economy is mainly based on fossil energy, such as coal, oil and natural gas. However, these non-renewable fossil energy sources are constantly being exhausted. Since the beginning of the 21st century, global energy issues and the ensuing environmental pollution and climate warming have become increasingly prominent and gradually intensified. Solar energy is considered to be one of the most promising renewable energy sources because of its widespread and vast distribution, large amount of resources, no pollution, cleanliness, safety, and easy access. Solar cells directly convert sunlight energy into electrical energy, which is a practical and effective way to utilize solar energy. However, currently commer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/10H01S5/36H01L51/00
Inventor 周明杰黄杰刘辉
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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