Three-dimensional dendrimer conjugated compound-carbon nanotube composite and its application

A conjugated compound, carbon nanotube technology, applied in the direction of carbon nanotubes, single-walled carbon nanotubes, carbon compounds, etc., can solve the problems that have not been reported, achieve regulation of charge mobility, easy separation and purification, and mature research Effect

Active Publication Date: 2020-03-27
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there has not been any report on the selective separation of semiconducting single-walled carbon nanotubes using a single-determined compound molecule with a novel three-dimensional conjugated space stereostructure

Method used

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  • Three-dimensional dendrimer conjugated compound-carbon nanotube composite and its application
  • Three-dimensional dendrimer conjugated compound-carbon nanotube composite and its application
  • Three-dimensional dendrimer conjugated compound-carbon nanotube composite and its application

Examples

Experimental program
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preparation example Construction

[0151] The invention also provides a preparation method of the composite ink. Wherein, the composite ink can adopt the following two preparation methods.

[0152] For example, the three-dimensional dendrimer conjugated compound is first dissolved in at least one solvent, and then the commercial large-diameter P2 single-walled carbon nanotubes are uniformly dispersed in the second The three-dimensional tree-shaped conjugated compound solution prepared in one step is finally subjected to short-term high-speed centrifugation, and the supernatant is separated to obtain an ink solution enriched in semiconductor-type large-diameter commercial carbon nanotubes.

[0153] For example, first mix the three-dimensional dendrimer conjugated compound with other organic semiconductor materials, and then dissolve them together in an organic solvent, and then disperse them evenly under the condition of temperature ≤ 0°C, and finally perform short-term high-speed centrifugation , separate the ...

Embodiment 1

[0241] Example 1: Preparation of Kernel Modified Dendrimer 16-Carbon Nanotube Composite Ink

[0242] Weigh 2 mg of commercial large-diameter carbon nanotube P2 sample, dissolve it in 10 ml of toluene solution, then add 6 mg of three-dimensional dendrimer conjugated compound 16 with a molecular weight of 4597, and use an ultrasonic power of 60 W under the condition of ice bath The cleaning machine ultrasonically dispersed for 30 minutes, so that the polymer can selectively fully interact with the semiconducting carbon nanotubes, and obtain a uniformly dispersed dispersion. After being centrifuged at 15000rpm for 30 minutes, the carbon nanotube bundles in the above dispersion and the metallic carbon nanotubes not coated by the three-dimensional dendrimer conjugated compound are deposited on the bottom of the centrifuge tube, and the supernatant is separated to obtain a high Pure composite ink enriched with large-diameter semiconducting carbon nanotubes.

Embodiment 2

[0243] Example 2: Preparation of Core Modified Dendrimer Conjugated Compound 19-Carbon Nanotube Composite Ink

[0244] Weigh 2 mg of commercial large-diameter carbon nanotube P2 sample, dissolve it in 10 ml of toluene solution, then add 3 mg of three-dimensional dendrimer conjugated compound 19 with a molecular weight of 5151, and use a 60W ultrasonic The cleaning machine ultrasonically dispersed for 30 minutes, so that the polymer can selectively fully interact with the semiconducting carbon nanotubes, and obtain a uniformly dispersed dispersion. After centrifugation at 15,000rpm for 30 minutes, the carbon nanotube bundles in the above dispersion and the metallic carbon nanotubes not covered by the three-dimensional dendrimer conjugated compound were deposited on the bottom of the centrifuge tube, and the supernatant was separated to obtain a high-purity Composite inks enriched with large-diameter semiconducting carbon nanotubes.

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Abstract

The invention discloses a three-dimensional tree-shaped conjugated compound-carbon nanotube compound and its application. The three-dimensional dendritic conjugated compound has a structure shown in formula (I) or (II): or wherein, B is a branched conjugated link unit, which is selected from five-membered or six-membered aromatic units with branched The unit of the structure; Core is the core functional modification unit; FG is the terminal functional modification unit; m is the branching degree of B, which is selected from 2 or 3; n is the number of iterations of the repeating unit, which is selected from 1, 2, 3 or 4. The three-dimensional dendritic conjugated compound of the present invention can be selectively combined with semiconducting carbon nanotubes, and can be used as a dispersant to selectively disperse semiconducting carbon nanotubes, and the compound formed with carbon nanotubes has good properties Semiconductor properties can be applied to large-scale commercial production of high-performance printable semiconductor carbon nanotube inks and high-performance printed electronic devices, such as printed thin-film transistor semiconductor devices with superior performance.

Description

technical field [0001] The present invention relates to a method for dispersing or selectively separating carbon nanotubes, carbon nanotube composites and applications thereof, in particular to a three-dimensional tree-shaped conjugated compound-carbon nanotube composite and applications thereof, such as in the preparation of composite inks , thin films and applications in semiconductor devices (such as field effect transistors), belonging to the field of optoelectronic semiconductor materials and devices. Background technique [0002] Single-walled carbon nanotubes are a class of one-dimensional nanomaterials with a unique structure, good mechanical properties, high charge mobility, excellent electrical properties, good compatibility with flexible substrates, solution processable, chemical and thermal stability Good and other advantages, it has a very wide range of applications in semiconductor electronic devices. [0003] The synthesis method of single-walled carbon nanot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/54B01F17/32C07F7/08C07D417/14C01B32/174C09D11/38H01L51/05H01L51/30C09K23/54C09K23/32
CPCC09D11/38C07D417/14C07F7/0814C01B2202/22C01B2202/02C09K23/00H10K85/655H10K85/657H10K85/40H10K10/46
Inventor 高威徐文亚窦军彦张祥赵建文马昌期崔铮
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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