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Organic semiconductor ink, preparation method and application

An organic semiconductor and semiconductor technology, applied in applications, inks, household appliances, etc., can solve the problems of difficult detection of molecular configuration, degradation of organic materials, and low relative concentration, so as to save post-processing technology, wide application range, Improves the effect of stability and uniformity

Pending Publication Date: 2021-11-02
成都灵睿奥创科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The performance of the disordered organic semiconductor film prepared by the solution processing method will decrease in the atmospheric environment, in which the trace amount of water permeated in the film structure gap will provide the stability of the electron and hole polaron, resulting in a decrease in mobility, while The combination of oxygen and water causes the degradation of organic materials
Studies have shown that water incorporation in nanoscale voids within polymer microstructures is a key factor for charge trapping and device degradation, and, experimentally, it is difficult to probe molecular configurations in small voids because of the correlation of the water involved. Concentrations are low, while at the same time water is ubiquitous in most experiments

Method used

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  • Organic semiconductor ink, preparation method and application
  • Organic semiconductor ink, preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Under an inert atmosphere, take 10 parts of an n-type organic semiconductor with a number average molecular weight of 50,000 {N,N'-bis(2-octyldodecyl)benzoLMN3,8-o-phenanthrene-1,3, 6,8(2H,7H)-tetraketone-4,9-diyl)(2,2′dithienyl-5,5′-diyl)} was dissolved in 100 parts of anhydrous chlorobenzene, and 5 parts Molecular additive 7,7,8,8-tetracyanoquinoline methane, stirred at 500rpm at a constant temperature of 50°C for 10 hours, then added 1 part of solution additive 1,8-octanedithiol, stirred at 500rpm at a constant temperature of 25°C for 3 Hours, you can get the organic semiconductor ink.

Embodiment 2

[0024] Under an inert atmosphere, take 8 parts of p-type organic semiconductor poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5- b']dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl}) was dissolved in 100 parts of anhydrous In chlorobenzene, add 5 parts of molecular additive 7,7,8,8-tetracyanoquinoline methane, stir at 500rpm at a constant temperature of 50°C for 10 hours, then add 1 part of solution additive 1,8-diiodooctane, in Stir at 500 rpm for 3 hours at a constant temperature of 25°C to obtain an organic semiconductor ink.

Embodiment 3

[0026] Under an inert atmosphere, 1 part of indendithiophene-copolybenzothiadiazole and poly(3-hexylthiophene-2,5-diyl) with a number average molecular weight of 40,000 was dissolved in 80 parts of anhydrous chlorobenzene, Add 0.1 part of molecular additive 7,7,8,8-tetracyanoquinoline methane, at a constant temperature of 50°C, at a rotation speed of 500rpm, stir for 8 hours, add 2 parts of solution additive 1-chloronaphthalene, at 25°C Stir at 500 rpm for 2 hours at a constant temperature to obtain an organic semiconductor ink.

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Abstract

The invention relates to the technical field of organic semiconductor ink, in particular to organic semiconductor ink, a preparation method and application. The ink comprises an organic semiconductor material, an organic solvent, a molecular additive and a solvent additive. Compared with the prior art, the semiconductor organic ink provided by the invention is wide in application range, and enables organic semiconductor electronic products to have a wider application range. According to the invention, a molecular additive can replace water to fill gaps of a film structure so as to reduce the adverse effect of the water, so that the stability and uniformity of an organic film are improved; the morphology of the disordered organic semiconductor film can be adjusted through a solution additive, so that the film structure can be densified, the structural gap size is reduced, the device stability is improved, the normal printing requirement of an ink-jet printer is met, and the ink is suitable for high-precision ink-jet printing needed by printing electronics; and the process is simple, an additional post-treatment process is omitted, and the obtained organic semiconductor film has excellent environmental tolerance.

Description

technical field [0001] The invention relates to the technical field of organic semiconductor inks, in particular to an organic semiconductor ink, a preparation method and an application. Background technique [0002] The emergence of digital printing technology has made inkjet printing in pressureless printing develop rapidly, and its application fields are expanding day by day. At the same time, the development of printed electronic materials and technology also provides opportunities for the combination of printed circuit board preparation, flexible display electrodes, electromagnetic shielding materials and printing technology. [0003] As a part of the newly developed electronic industry, the research of organic semiconductor circuits usually goes through the following process: firstly, the newly synthesized organic semiconductor materials are applied to functional devices, and the thin film deposition process and liquid phase process are continuously optimized to find t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09D11/30C09D11/36C09D11/38
CPCC09D11/03C09D11/30C09D11/36C09D11/38
Inventor 罗钧议赵文博胡雨蒋果安欣威樊子卿程溢川张瀚文肖静瑶
Owner 成都灵睿奥创科技有限公司
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