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Three-dimensional tree-shape conjugated compound-carbon nanotube complex and application of complex

A technology of conjugated compounds and carbon nanotubes, which is applied in the direction of carbon nanotubes, single-walled carbon nanotubes, carbon compounds, etc., can solve problems that have not been reported in any way, and achieve control of charge mobility, rich experience, and reduced spectral bandwidth Effect

Active Publication Date: 2017-12-12
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 tree-shape conjugated compound-carbon nanotube complex and application of complex
  • Three-dimensional tree-shape conjugated compound-carbon nanotube complex and application of complex
  • Three-dimensional tree-shape conjugated compound-carbon nanotube complex and application of complex

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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-shape conjugated compound-carbon nanotube complex and an application of the complex. The three-dimensional tree-shape conjugated compound has a structure represented as a formula (I) or a formula (II), wherein the B is a branched conjugated link unit, which is selected from units which are formed by five-membered or six-membered aromatic units and have branched structures, the Core is a modifying unit having a kernel function, the FG is a modifying unit having a terminal function, the m is the degree of branching of the B and is selected from a group consisting of 2 or 3, and the n is the iteration times of repeating units and is selected from a group consisting of 1,2,3 or 4. The three-dimensional tree-shape conjugated compound provided by the invention can selectively combines with semiconductor-type carbon nanotubes and can be used as a dispersing agent for selectively dispersing the semiconductor-type carbon nanotubes. The complex formed by the three-dimensional tree-shape conjugated compound and carbon nanotubes has a good semiconductive property and can be applied to large-scale commercial production of high-property ink which can be used to print semiconductor carbon nanotubes, and high-property electron devices for printing, such as superior-property semiconductor devices of printing film transistors.

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 Applications(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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