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Ink composition and preparation method thereof

A composition and ink technology, which is applied in the manufacturing and application of inks, semiconductor/solid-state devices, etc., can solve problems such as the description of hydroxyl-containing components, and achieve the effect of improving performance and saving ink.

Inactive Publication Date: 2017-12-08
SHANGHAI MI FANG ELECTRONICS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN102610756B discloses a solution method low-voltage high-performance organic thin film transistor, which mentions that the organic layer can be prepared by inkjet printing method, and wherein the gate insulating layer is a hydroxyl-containing UV-crosslinkable organic polymer processed by the solution method Thin films, but not further specified for components containing hydroxyl groups

Method used

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  • Ink composition and preparation method thereof
  • Ink composition and preparation method thereof
  • Ink composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A. Ink preparation

[0037] Take 0.1958g of 2,4,6-Triallyloxy-1,3,5-triazine (purchased from Sigma-Aldrich, model 291609), 0.2878g of pentaerythritol tetra-3-mercaptopropionate (purchased In Sigma-Aldrich, model 381462), 2.3mg of 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone (purchased from Sigma-Aldrich, model 405647), 50mg Surfactant Triton TM X-100 (purchased from Sigma-Aldrich, model 9002-93-1) in 1 mL of propylene glycol monomethyl ether acetate solution. Among them, 2,4,6-triallyloxy-1,3,5-triazine, pentaerythritol tetra-3-mercaptopropionate, 2-benzyl-2-dimethylamino-1-(4- The mass ratio of morpholinophenyl) butanone in the ink composition is 1:1.47:0.012.

[0038] After the ink composition is configured, it is stirred for 0.1-2h and ultrasonicated for 1-10min at an ultrasonic frequency of 20-40kHz, and then the ink composition is filtered with a disposable syringe filter with a precision of 0.1-0.5μm.

[0039] The standard principle of rheological measur...

Embodiment 2-12

[0044] The preparation method of the ink composition and the preparation steps of the medium layer are the same as in Example 1, except for the components of the ink composition, which are specifically listed in Table 1.

[0045] Table 1 Ink composition component table

[0046]

[0047]

[0048] Table 2 Ink viscosity and surface tension

[0049] Example

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Abstract

The invention relates to an ink composition for preparing a medium layer of an organic thin-film transistor by an ink-jet printing process and a preparation method thereof. The ink composition comprises 2, 4, 6-trienepropyl-1, 3, 5-triazine, pentaerythritol tetra-3-sulfhydryl propionate, 2-benzyl-2-dimethylamino-1-(4-morpholine phenyl) butanone and a surface active agent, wherein the medium layer is crosslinked and cured quickly at a low temperature. The ink composition and the preparation method have the advantages that the great waste of solution caused by a spin-coating mode process in the prior art is avoided, ink can be provided for printing according to the need, and the patterned medium layer can be prepared; in addition, the ink is quickly crosslinked at a low temperature, so that on one hand, the problem that the high-temperature crosslinking is not applicable to the flexible substrate in the prior art is solved, on the other hand, the phenomena of bending and wrinkling of the flexible substrate due to high temperature in the application scene are avoided, and the deposition quality of a next functional layer is guaranteed.

Description

Technical field [0001] The present invention belongs to the field of inkjet printing consumables. Specifically, the present invention relates to an ink composition for preparing a dielectric layer of an organic thin film transistor and a preparation method thereof. Background technique [0002] Organic electronic devices are generally in the form of thin films. Organic thin film transistors (organic thin film transistors, OTFTs) are organic field-effect transistors with logic switching characteristics that use organic semiconductor materials as the active layer of the transistor. They are widely used in the field of flat panel displays. Applications. The basic structure and functions of organic thin film transistors are basically the same as those of traditional inorganic thin film transistors (TFT). Compared with inorganic thin film transistors, organic thin film transistors have the advantages of higher flexibility, low processing temperature (generally below 180°C), low produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/38H01L51/05
CPCC09D11/38H10K10/471
Inventor 李胜夏魏勤蓝河
Owner SHANGHAI MI FANG ELECTRONICS LTD
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